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  • February 2011 Java SE and Java for Business Critical Patch Update Released

    - by eric.maurice
    Hello, this is Eric Maurice again. Oracle released the February 2011 Critical Patch Update for Java SE and Java for Business today. As discussed in a previous blog entry, Oracle currently maintains a separate Critical Patch Update schedule for Java SE and Java for Business because of commitments made prior to the Oracle acquisition in regards to the timing for the publication of Java fixes. Today's Java Critical Patch Update includes fixes for 21 vulnerabilities. The most severe CVSS Base Score for vulnerabilities fixed in this CPU is 10.0, and this Base Score affects 8 vulnerabilities. Out of these 21 vulnerabilities, 13 affect Java client deployments. 12 of these 13 vulnerabilities can be exploited through Untrusted Java Web Start applications and Untrusted Java Applets, which run in the Java sandbox with limited privileges. One of these 13 vulnerabilities can be exploited by running a standalone application. In addition, one of the client vulnerability affects Java Update, a Windows-specific component. 3 of the 21 vulnerabilities affect client and server deployments. These vulnerabilities can be exploited through Untrusted Java Web Start applications and Untrusted Java Applets, as well as be exploited by supplying malicious data to APIs in the specified components, such as, for example, through a web service. 3 vulnerabilities affect Java server deployments only. These vulnerabilities can be exploited by supplying malicious data to APIs in the specified Java components. Note that one of these vulnerabilities (CVE-2010-4476) was the subject of a Security Alert released on February 8th. Finally, one of these vulnerabilities is specific to Java DB, a component in the Java JDK, but not included in the Java Runtime Environment (JRE). As usual, because of the severity of the vulnerabilities fixed in this Critical Patch Update, Oracle recommends that Java customers apply it as soon as possible. The Critical Patch Advisory provides more details about the vulnerabilities addressed in the Critical Patch Update as well as instructions on how to install the fixes and where to get them. Home users should use the Java auto-update mechanism to install the latest version of the Java Runtime Environment 6 update 24 or higher (JRE), which includes the fix for this vulnerability. For More Information: The Critical Patch Updates and Security Alerts page is located at http://www.oracle.com/technetwork/topics/security/alerts-086861.html More information on Oracle Software Security Assurance is located at http://www.oracle.com/us/support/assurance/index.html Consumers can go to http://www.java.com/en/download/installed.jsp to ensure that they have the latest version of Java running on their desktops. More information on Java Update is available at http://www.java.com/en/download/help/java_update.xml

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  • When should I start learning a PHP Framework

    - by Festus
    I'm a beginner programmer I have been learning PHP for a while, though not consistently. But for the past few months (say 3 months) I have been a bit consistent in my learning, largely because of a project a friend ask me to do for him since he knew I was into web design. Though I struggled to complete the tiny project for him after about 3 weeks, because I got stuck some times and I have to look up tutorials/references relating to the problem I was trying to solve, but I feel fulfilled been able to accomplish a project and along the way grab most of PHP basics. My interest in Web development has grew higher since completing that project and I have been trying to learn PHP/MySQL as fast as I could, because the same friend want me to do something else for him, which to me is way beyond the basics I know. Though I don't charge him anything, but it gives me a sense of fulfillment. I want to learn a framework, because I heard it can make you accomplish more as a web developer and makes life much easier. Can I learn a framework without having OOP knowledge? I know how to create and use functions, though I don't use it much I know my question is not straight forward, but I know you will understand were I'm coming from and advice me appropriately. I wish to become a professional Web Developer. I really need your professional advice.

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  • Problem getting Java Streams in HP Tandem (Non-Stop)

    - by AndreaG
    Hi. We are porting a simple Java application between Tandem NonStop systems, from G-Series to H-Series. Java version is 1.5.0_02. When performing basic I/O tasks like getting output stream from or opening a client socket, we receive exceptions like java.io.IOException: Value out of range or java.net.SocketException: Value out of range ("value out of range" is Tandem native jargon for, well, quite everything I suppose). Has anybody got similar issues? i.e. I/O corruption while for example messing with JNI? I suppose there is something wrong with the system, but where might it be? Thank you. EDIT: adding snippets as requested sample snippet (a) - using Runtime.exec () (adapted) Properties envVars = new Properties(); Process p = r.exec("/bin/env"); envVars.load(p.getInputStream()); Stack trace (a): java.io.IOException: Value out of range (errno:4034) at java.io.FileInputStream.readBytes(Native Method) at java.io.FileInputStream.read(FileInputStream.java:194) at java.lang.UNIXProcess$DeferredCloseInputStream.read(UNIXProcess.java:221) at java.io.BufferedInputStream.read1(BufferedInputStream.java:254) at java.io.BufferedInputStream.read(BufferedInputStream.java:313) at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411) at sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453) at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183) at java.io.InputStreamReader.read(InputStreamReader.java:167) at java.io.BufferedReader.fill(BufferedReader.java:136) at java.io.BufferedReader.readLine(BufferedReader.java:299) at java.io.BufferedReader.readLine(BufferedReader.java:362) at util.Environment.getVariables(Environment.java:39) Last line fails, and output gets redirected to console (!). sample snippet (b) - using HttpURLConnection: public WorkerThread (HttpURLConnection conn, String requestData, Logger logger) { this.conn = conn; ... } public void run () { OutputStream out = conn.getOutputStream (); } Stack trace (b): java.net.SocketException: Value out of range (errno:4034) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.Socket.connect(Socket.java:507) at sun.net.NetworkClient.doConnect(NetworkClient.java:155) at sun.net.www.http.HttpClient.openServer(HttpClient.java:365) at sun.net.www.http.HttpClient.openServer(HttpClient.java:477) at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:280) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:337) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:176) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:736) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:162) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:828) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:230) Case (a) can be avoided because it was a workaround for other issues with previous JRE version (!), but same behaviour with sockets is really nasty.

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  • RPi and Java Embedded GPIO: Sensor Reading using Java Code

    - by hinkmond
    And, now to program the Java code for reading the fancy-schmancy static electricity sensor connected to your Raspberry Pi, here is the source code we'll use: First, we need to initialize ourselves... /* * Java Embedded Raspberry Pi GPIO Input app */ package jerpigpioinput; import java.io.FileWriter; import java.io.RandomAccessFile; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Calendar; /** * * @author hinkmond */ public class JerpiGPIOInput { static final String GPIO_IN = "in"; // Add which GPIO ports to read here static String[] GpioChannels = { "7" }; /** * @param args the command line arguments */ public static void main(String[] args) { try { /*** Init GPIO port(s) for input ***/ // Open file handles to GPIO port unexport and export controls FileWriter unexportFile = new FileWriter("/sys/class/gpio/unexport"); FileWriter exportFile = new FileWriter("/sys/class/gpio/export"); for (String gpioChannel : GpioChannels) { System.out.println(gpioChannel); // Reset the port unexportFile.write(gpioChannel); unexportFile.flush(); // Set the port for use exportFile.write(gpioChannel); exportFile.flush(); // Open file handle to input/output direction control of port FileWriter directionFile = new FileWriter("/sys/class/gpio/gpio" + gpioChannel + "/direction"); // Set port for input directionFile.write(GPIO_IN); directionFile.flush(); } And, next we will open up a RandomAccessFile pointer to the GPIO port. /*** Read data from each GPIO port ***/ RandomAccessFile[] raf = new RandomAccessFile[GpioChannels.length]; int sleepPeriod = 10; final int MAXBUF = 256; byte[] inBytes = new byte[MAXBUF]; String inLine; int zeroCounter = 0; // Get current timestamp with Calendar() Calendar cal; DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSS"); String dateStr; // Open RandomAccessFile handle to each GPIO port for (int channum=0; channum Then, loop forever to read in the values to the console. // Loop forever while (true) { // Get current timestamp for latest event cal = Calendar.getInstance(); dateStr = dateFormat.format(cal.getTime()); // Use RandomAccessFile handle to read in GPIO port value for (int channum=0; channum Rinse, lather, and repeat... Compile this Java code on your host PC or Mac with javac from the JDK. Copy over the JAR or class file to your Raspberry Pi, "sudo -i" to become root, then start up this Java app in a shell on your RPi. That's it! You should see a "1" value get logged each time you bring a statically charged item (like a balloon you rub on the cat) near the antenna of the sensor. There you go. You've just seen how Java Embedded technology on the Raspberry Pi is an easy way to access sensors. Hinkmond

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  • javax.naming.InvalidNameException using Oracle BPM and weblogic when accessing directory

    - by alfredozn
    We are getting this exception when we start our cluster (2 managed servers, 1 admin), we have deployed only the ears corresponding to the OBPM 10.3.1 SP1 in a weblogic 10.3. When the server cluster starts, one of the managed servers (the first to start) get overloaded and ran out of connections to the directory DB because of this repeatedly error. It looks like the engine is trying to get the info from the LDAP server but I don't know why it is building a wrong query. fuego.directory.DirectoryRuntimeException: Exception [javax.naming.InvalidNameException: CN=Alvarez Guerrero Bernardo DEL:ca9ef28d-3b94-4e8f-a6bd-8c880bb3791b,CN=Deleted Objects,DC=corp: [LDAP: error code 34 - 0000208F: NameErr: DSID-031001BA, problem 2006 (BAD_NAME), data 8349, best match of: 'CN=Alvarez Guerrero Bernardo DEL:ca9ef28d-3b94-4e8f-a6bd-8c880bb3791b,CN=Deleted Objects,DC=corp,dc=televisa,dc=com,dc=mx' ^@]; remaining name 'CN=Alvarez Guerrero Bernardo DEL:ca9ef28d-3b94-4e8f-a6bd-8c880bb3791b,CN=Deleted Objects,DC=corp']. at fuego.directory.DirectoryRuntimeException.wrapException(DirectoryRuntimeException.java:85) at fuego.directory.hybrid.ldap.JNDIQueryExecutor.selectById(JNDIQueryExecutor.java:163) at fuego.directory.hybrid.ldap.JNDIQueryExecutor.selectById(JNDIQueryExecutor.java:110) at fuego.directory.hybrid.ldap.Repository.selectById(Repository.java:38) at fuego.directory.hybrid.msad.MSADGroupValueProvider.getAssignedParticipantsInternal(MSADGroupValueProvider.java:124) at fuego.directory.hybrid.msad.MSADGroupValueProvider.getAssignedParticipants(MSADGroupValueProvider.java:70) at fuego.directory.hybrid.ldap.Group$7.getValue(Group.java:149) at fuego.directory.hybrid.ldap.Group$7.getValue(Group.java:152) at fuego.directory.hybrid.ldap.LDAPResult.getValue(LDAPResult.java:76) at fuego.directory.hybrid.ldap.LDAPOrganizationGroupAccessor.setInfo(LDAPOrganizationGroupAccessor.java:352) at fuego.directory.hybrid.ldap.LDAPOrganizationGroupAccessor.build(LDAPOrganizationGroupAccessor.java:121) at fuego.directory.hybrid.ldap.LDAPOrganizationGroupAccessor.build(LDAPOrganizationGroupAccessor.java:114) at fuego.directory.hybrid.ldap.LDAPOrganizationGroupAccessor.fetchGroup(LDAPOrganizationGroupAccessor.java:94) at fuego.directory.hybrid.HybridGroupAccessor.fetchGroup(HybridGroupAccessor.java:146) at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at fuego.directory.provider.DirectorySessionImpl$AccessorProxy.invoke(DirectorySessionImpl.java:756) at $Proxy66.fetchGroup(Unknown Source) at fuego.directory.DirOrganizationalGroup.fetch(DirOrganizationalGroup.java:275) at fuego.metadata.GroupManager.loadGroup(GroupManager.java:225) at fuego.metadata.GroupManager.find(GroupManager.java:57) at fuego.metadata.ParticipantManager.addNestedGroups(ParticipantManager.java:621) at fuego.metadata.ParticipantManager.buildCompleteRoleAssignments(ParticipantManager.java:527) at fuego.metadata.Participant$RoleTransitiveClousure.build(Participant.java:760) at fuego.metadata.Participant$RoleTransitiveClousure.access$100(Participant.java:692) at fuego.metadata.Participant.buildRoles(Participant.java:401) at fuego.metadata.Participant.updateMembers(Participant.java:372) at fuego.metadata.Participant.<init>(Participant.java:64) at fuego.metadata.Participant.createUncacheParticipant(Participant.java:84) at fuego.server.persistence.jdbc.JdbcProcessInstancePersMgr.loadItems(JdbcProcessInstancePersMgr.java:1706) at fuego.server.persistence.Persistence.loadInstanceItems(Persistence.java:838) at fuego.server.AbstractInstanceService.readInstance(AbstractInstanceService.java:791) at fuego.ejbengine.EJBInstanceService.getLockedROImpl(EJBInstanceService.java:218) at fuego.server.AbstractInstanceService.getLockedROImpl(AbstractInstanceService.java:892) at fuego.server.AbstractInstanceService.getLockedImpl(AbstractInstanceService.java:743) at fuego.server.AbstractInstanceService.getLockedImpl(AbstractInstanceService.java:730) at fuego.server.AbstractInstanceService.getLocked(AbstractInstanceService.java:144) at fuego.server.AbstractInstanceService.getLocked(AbstractInstanceService.java:162) at fuego.server.AbstractInstanceService.unselectAllItems(AbstractInstanceService.java:454) at fuego.server.execution.ToDoItemUnselect.execute(ToDoItemUnselect.java:105) at fuego.server.execution.DefaultEngineExecution$AtomicExecutionTA.runTransaction(DefaultEngineExecution.java:304) at fuego.transaction.TransactionAction.startNestedTransaction(TransactionAction.java:527) at fuego.transaction.TransactionAction.startTransaction(TransactionAction.java:548) at fuego.transaction.TransactionAction.start(TransactionAction.java:212) at fuego.server.execution.DefaultEngineExecution.executeImmediate(DefaultEngineExecution.java:123) at fuego.server.execution.DefaultEngineExecution.executeAutomaticWork(DefaultEngineExecution.java:62) at fuego.server.execution.EngineExecution.executeAutomaticWork(EngineExecution.java:42) at fuego.server.execution.ToDoItem.executeAutomaticWork(ToDoItem.java:261) at fuego.ejbengine.ItemExecutionBean$1.execute(ItemExecutionBean.java:223) at fuego.server.execution.DefaultEngineExecution$AtomicExecutionTA.runTransaction(DefaultEngineExecution.java:304) at fuego.transaction.TransactionAction.startBaseTransaction(TransactionAction.java:470) at fuego.transaction.TransactionAction.startTransaction(TransactionAction.java:551) at fuego.transaction.TransactionAction.start(TransactionAction.java:212) at fuego.server.execution.DefaultEngineExecution.executeImmediate(DefaultEngineExecution.java:123) at fuego.server.execution.EngineExecution.executeImmediate(EngineExecution.java:66) at fuego.ejbengine.ItemExecutionBean.processMessage(ItemExecutionBean.java:209) at fuego.ejbengine.ItemExecutionBean.onMessage(ItemExecutionBean.java:120) at weblogic.ejb.container.internal.MDListener.execute(MDListener.java:466) at weblogic.ejb.container.internal.MDListener.transactionalOnMessage(MDListener.java:371) at weblogic.ejb.container.internal.MDListener.onMessage(MDListener.java:327) at weblogic.jms.client.JMSSession.onMessage(JMSSession.java:4547) at weblogic.jms.client.JMSSession.execute(JMSSession.java:4233) at weblogic.jms.client.JMSSession.executeMessage(JMSSession.java:3709) at weblogic.jms.client.JMSSession.access$000(JMSSession.java:114) at weblogic.jms.client.JMSSession$UseForRunnable.run(JMSSession.java:5058) at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) at weblogic.work.ExecuteThread.run(ExecuteThread.java:173) Caused by: javax.naming.InvalidNameException: CN=Alvarez Guerrero Bernardo DEL:ca9ef28d-3b94-4e8f-a6bd-8c880bb3791b,CN=Deleted Objects,DC=corp: [LDAP: error code 34 - 0000208F: NameErr: DSID-031001BA, problem 2006 (BAD_NAME), data 8349, best match of: 'CN=Alvarez Guerrero Bernardo DEL:ca9ef28d-3b94-4e8f-a6bd-8c880bb3791b,CN=Deleted Objects,DC=corp,dc=televisa,dc=com,dc=mx' ^@]; remaining name 'CN=Alvarez Guerrero Bernardo DEL:ca9ef28d-3b94-4e8f-a6bd-8c880bb3791b,CN=Deleted Objects,DC=corp' at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2979) at com.sun.jndi.ldap.LdapCtx.processReturnCode(LdapCtx.java:2794) at com.sun.jndi.ldap.LdapCtx.searchAux(LdapCtx.java:1826) at com.sun.jndi.ldap.LdapCtx.c_search(LdapCtx.java:1749) at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_search(ComponentDirContext.java:368) at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(PartialCompositeDirContext.java:338) at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(PartialCompositeDirContext.java:321) at javax.naming.directory.InitialDirContext.search(InitialDirContext.java:248) at fuego.jndi.FaultTolerantLdapContext.search(FaultTolerantLdapContext.java:612) at fuego.directory.hybrid.ldap.JNDIQueryExecutor.selectById(JNDIQueryExecutor.java:136) ... 67 more

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  • Java Spotlight Episode 75: Greg Luck on JSR 107 Java Temporary Caching API

    - by Roger Brinkley
    Tweet Recorded live at Jfokus 2012, an interview with Greg Luck on JSR 107 Java Temporary Caching API. Joining us this week on the Java All Star Developer Panel is Alexis Moussine-Pouchkine, Java EE Developer Advocate. Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link:  Java Spotlight Podcast in iTunes. Show Notes News JavaOne 2012 call for papers is open (closes April 9th) LightFish, Adam Bien's lightweight telemetry application Java EE 6 sample code JavaFX 1.2 and 1.3 EOL Repeating Annotations in the Works Events March 26-29, EclipseCon, Reston, USA March 27, Virtual Developer Days - Java (Asia Pacific (English)),9:30 am to 2:00pm IST / 12:00pm to 4.30pm SGT  / 3.00pm - 7.30pm AEDT April 4-5, JavaOne Japan, Tokyo, Japan April 12, GreenJUG, Greenville, SC April 17-18, JavaOne Russia, Moscow Russia April 18–20, Devoxx France, Paris, France April 26, Mix-IT, Lyon, France, May 3-4, JavaOne India, Hyderabad, India Feature Interview Greg Luck founded Ehcache in 2003. He regularly speaks at conferences, writes and codes. He has also founded and maintains the JPam and Spnego open source projects, which are security focused. Prior to joining Terracotta in 2009, Greg was Chief Architect at Wotif.com where he provided technical leadership as the company went from a single product startup to a billion dollar public company with multiple product lines. Before that Greg was a consultant for ThoughtWorks with engagements in the US and Australia in the travel, health care, geospatial, banking and insurance industries. Before doing programming, Greg managed IT. He was CIO at Virgin Blue, Tempo Services, Stamford Hotels and Resorts and Australian Resorts. He is a Chartered Accountant, and spent 7 years with KPMG in small business and insolvency. Mail Bag What’s Cool RT @harkje: To update an earlier tweet: #JavaFX feels like Swing with added convenience methods, better looking widgets, nice effects and...

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  • Website development from scratch v/s web framework [duplicate]

    - by Ali
    This question already has an answer here: What should every programmer know about web development? 1 answer Do people develop websites from scratch when there are no particular requirements or they just pick up an existing web framework like Drupal, Joomla, WordPress, etc. The requirements are almost similar in most cases; if personal, it will be a blog or image gallery; if corporate, it will be information pages that can be updated dynamically along with news section. And similarly, there are other requirements which can be fulfilled by WordPress, Joomla or Drupal. So, Is it advisable to develop a website from scratch and why ? Update: to explain more as got commentt from @Raynos (thanks for comment and helping me clearify the question), the question is about: Should web sites be developed and designed fully from scratch? Should they be done by using framework like Spring, Zend, CakePHP? Should they be done using CMS like Joomla, WordPress, Drupal (people in east are using these as frameworks)?

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  • correct Installation and configuration of openJDK and R

    - by Marco K
    I am relatively new to Ubuntu so I wont know a lot of commands that probably became standard to a lot of you guys. I am trying to set up R and with it the necessary java dependencies to install e.g. JGR, rjava, etc. I read through quite a few instructions to do that but somehow I must have done sth wrong. Here is the state of R and java: R --version R version 2.14.1 (2011-12-22) Copyright (C) 2011 The R Foundation for Statistical Computing ISBN 3-900051-07-0 Platform: x86_64-pc-linux-gnu (64-bit) java -version java version "1.6.0_23" OpenJDK Runtime Environment (IcedTea6 1.11pre) (6b23~pre11-0ubuntu1.11.10.1) OpenJDK 64-Bit Server VM (build 20.0-b11, mixed mode) R CMD javareconf Java interpreter : /usr/bin/java Java version : 1.6.0_23 Java home path : /usr/lib/jvm/java-6-openjdk/jre Java compiler : /usr/bin/javac Java headers gen.: /usr/bin/javah Java archive tool: /usr/bin/jar Java library path: /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server:/usr/lib/jvm/java-6-openjdk/jre/lib/amd64:/usr/lib/jvm/java-6-openjdk/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib/jni:/lib:/usr/lib JNI linker flags : -L/usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server -L/usr/lib/jvm/java-6-openjdk/jre/lib/amd64 -L/usr/lib/jvm/java-6-openjdk/jre/../lib/amd64 -L/usr/java/packages/lib/amd64 -L/usr/lib/jni -L/lib -L/usr/lib -ljvm JNI cpp flags : But when I try to install 'JavaGD' in R, which is a dependency for JGR I get: ... checking Java support in R... present: interpreter : '/usr/bin/java' cpp flags : '' java libs : '-L/usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server -L/usr/lib/jvm/java-6-openjdk/jre/lib/amd64 -L/usr/lib/jvm/java-6-openjdk/jre/../lib/amd64 -L/usr/java/packages/lib/amd64 -L/usr/lib/jni -L/lib -L/usr/lib -ljvm' configure: error: One or more Java configuration variables are not set. Make sure R is configured with full Java support (including JDK). Run R CMD javareconf as root to add Java support to R. ... Any help would be greatly appreciated. Thanks!

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  • Why isn't Java used for modern web application development?

    - by Cliff
    As a professional Java programmer, I've been trying to understand - why the hate toward Java for modern web applications? I've noticed a trend that out of modern day web startups, a relatively small percentage of them appears to be using Java (compared to Java's overall popularity). When I've asked a few about this, I've typically received a response like, "I hate Java with a passion." But no one really seems to be able to give a definitive answer. I've also heard this same web startup community refer negatively to Java developers - more or less implying that they are slow, not creative, old. As a result, I've spent time working to pick up Ruby/Rails, basically to find out what I'm missing. But I can't help thinking to myself, "I could do this much faster if I were using Java," primarily due to my relative experience levels. But also because I haven't seen anything critical "missing" from Java, preventing me from building the same application. Which brings me to my question(s): Why is Java not being used in modern web applications? Is it a weakness of the language? Is it an unfair stereotype of Java because it's been around so long (it's been unfairly associated with its older technologies, and doesn't receive recognition for its "modern" capabilities)? Is the negative stereotype of Java developers too strong? (Java is just no longer "cool") Are applications written in other languages really faster to build, easier to maintain, and do they perform better? Is Java only used by big companies who are too slow to adapt to a new language?

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  • Java web UI framework like ASP.NET MVC?

    - by Ethel Evans
    I'm doing some web apps for personal projects that might be shared out with my friends. I'm trying to use skills that will help me at work, but don't have $$ to spend on Visual Studio right now and don't want to try to cobble something together with Express Editions. Since I've been sort of wanting to bring my Java skills up to date and the main skills I want to work on are design and architecture skills, this isn't a big deal - except that I have no idea how to track down the right UI framework. I know I want something based on MVC, to get more practice with frameworks for that design pattern (we're using ASP .NET MVC2 at work). The UIs that I'll be making will be pretty simple - data entry, buttons, text, images. They will need AJAX. Any thoughts about which frameworks to look at? I'll be watching the comments, if anyone wants additional clarification on what I'm looking for.

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  • migrating from struts2, looking for a new framework

    - by adhg
    We are supposed to start a relatively big project that will require lots of computation and analysis. Presentation (UI) for the end user is very crucial (graphs, tabels...) So far we've been using struts2. It's ok+. It has some drawbacks (specially if you work with tiles and all that XML) but if you get the lingo - you're ok. One option on the table is to continue using struts2 with jquery and all the other stuff that we've been doing for so long. Alternatively, I think we have an opportunity to learn something new and maybe a bit better then struts2. My question is this: Anyone has migrated from struts2 to something new and can share the experience. Or had some great experience witha particular java framework. Many thanks for any pointers.

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  • java.io.FileNotFoundException: /target/test.log

    - by sword101
    Greetings all I am using Apache Camel and Apache CXF in this example: http://camel.apache.org/better-jms-transport-for-cxf-webservice-using-apache-camel.data/cxfcamelexample.zip I followed the readme and when tried to run the client & server classes i got this exception: log4j:ERROR setFile(null,true) call failed. java.io.FileNotFoundException: /target/test.log (No such file or directory) at java.io.FileOutputStream.openAppend(Native Method) at java.io.FileOutputStream.<init>(FileOutputStream.java:177) at java.io.FileOutputStream.<init>(FileOutputStream.java:102) at org.apache.log4j.FileAppender.setFile(FileAppender.java:289) at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:163) at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:256) at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:132) at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:96) at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:654) at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:612) at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:509) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:415) at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:441) at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:470) at org.apache.log4j.LogManager.<clinit>(LogManager.java:122) at org.apache.log4j.Logger.getLogger(Logger.java:104) at org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:283) at org.apache.commons.logging.impl.Log4JLogger.<init>(Log4JLogger.java:108) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.commons.logging.impl.LogFactoryImpl.createLogFromClass(LogFactoryImpl.java:1040) at org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(LogFactoryImpl.java:838) at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:601) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:333) at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:307) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:645) at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:146) at org.springframework.context.support.AbstractRefreshableApplicationContext.<init>(AbstractRefreshableApplicationContext.java:84) at org.springframework.context.support.AbstractRefreshableConfigApplicationContext.<init>(AbstractRefreshableConfigApplicationContext.java:59) at org.springframework.context.support.AbstractXmlApplicationContext.<init>(AbstractXmlApplicationContext.java:58) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:136) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) at com.example.customerservice.impl.CustomerServiceClient.main(CustomerServiceClient.java:34) so any ideas, how to solve this exception ?

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  • When I mix JSTL 1.0 and JSTL 1.1 taglib declarations, it causes a ParseException on some of my serve

    - by sangfroid
    Hello all, When I mix JSTL 1.0 and JSTL 1.1 taglib declarations, it causes a ParseException on some of my servers, but not all of them. Here is the block of code that's giving me trouble : <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"%> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%> <c:set var="TEXTVARIABLE">|STRINGOFTEXT|</c:set> <c:set var="OTHERTEXTVARIABLE">${fn:contains(TEXTVARIABLE, '|STRINGOFTEXT|')}</c:set> And here is the exception : javax.servlet.jsp.JspException: com.caucho.jsp.JspLineParseException: /WEB-INF/jsp/online/system/modules/com.MYCOMPANY.marketing/templates/common/MY_JSP_PAGE.jsp:1: tag = 'out' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${fn:contains(TEXTVARIABLE, '|STRINGOFTEXT|')}": org.apache.taglibs.standard.lang.jstl.parser.ParseException: EL functions are not supported. However, everything works fine if I change the URI for the core declaration to http://java.sun.com/jsp/jstl/core So here's the really weird part : for some reason, mixing 1.0 and 1.1 taglib declarations only causes an exception on two of my servers -- my staging server and my production server. It causes no problems at all on my local machine or my development server. Why is this? What could possibly be causing this difference in behavior? The three servers are extremely similar in setup and configuration. The JSP page is being served up by OpenCMS, and I'm using the Caucho's Resin webserver. I understand that you don't know how my servers or CMS are set up, but really, what I'm looking for is ideas. Any ideas at all would help -- this problem has been driving me absolutely batty. Even if you don't know what could be causing the problem, if you have any suggestions at all for how I could approach the problem, that would be extremely helpful. I just don't understand what could cause this difference in behavior between my servers. For reference, here's the full stack trace : javax.servlet.jsp.JspException: com.caucho.jsp.JspLineParseException: /WEB-INF/jsp/online/system/modules/com.MYCOMPANY.marketing/templates/common/MY_JSP_PAGE.jsp:1: tag = 'out' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${fn:contains(TEXTVARIABLE, '|STRINGOFTEXT|')}": org.apache.taglibs.standard.lang.jstl.parser.ParseException: EL functions are not supported. at org.opencms.jsp.CmsJspTagInclude.includeActionWithCache(CmsJspTagInclude.java:369) at org.opencms.jsp.CmsJspTagInclude.includeTagAction(CmsJspTagInclude.java:241) at org.opencms.jsp.CmsJspTagInclude.doEndTag(CmsJspTagInclude.java:472) at _jsp._WEB_22dINF._jsp._online._system._modules.com_MYCOMPANY__marketing._templates._MAIN_0PAGE__jsp._jspService(_MAIN_0PAGE__jsp.java:153) at com.caucho.jsp.JavaPage.service(JavaPage.java:60) at com.caucho.jsp.Page.pageservice(Page.java:579) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:179) at shared.filter.RemoteAddrFilterBase.doFilter(RemoteAddrFilterBase.java:57) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at org.opencms.flex.CmsFlexRequestDispatcher.includeExternal(CmsFlexRequestDispatcher.java:194) at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:169) at org.opencms.loader.CmsJspLoader.service(CmsJspLoader.java:1193) at org.opencms.flex.CmsFlexRequestDispatcher.includeInternalWithCache(CmsFlexRequestDispatcher.java:423) at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:173) at org.opencms.loader.CmsJspLoader.dispatchJsp(CmsJspLoader.java:1227) at org.opencms.loader.CmsJspLoader.load(CmsJspLoader.java:1171) at org.opencms.loader.A_CmsXmlDocumentLoader.load(A_CmsXmlDocumentLoader.java:232) at org.opencms.loader.CmsXmlContentLoader.load(CmsXmlContentLoader.java:52) at org.opencms.loader.CmsResourceManager.loadResource(CmsResourceManager.java:964) at org.opencms.main.OpenCmsCore.showResource(OpenCmsCore.java:1498) at org.opencms.main.OpenCmsServlet.doGet(OpenCmsServlet.java:152) at javax.servlet.http.HttpServlet.service(HttpServlet.java:115) at javax.servlet.http.HttpServlet.service(HttpServlet.java:92) at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:106) at com.caucho.filters.CmsGzipFilter.doFilter(CmsGzipFilter.java:177) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at shared.filter.RemoteAddrFilterBase.doFilter(RemoteAddrFilterBase.java:57) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:277) at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:106) at com.caucho.server.dispatch.ForwardFilterChain.doFilter(ForwardFilterChain.java:80) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:207) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:173) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:274) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:514) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:520) at com.caucho.util.ThreadPool.run(ThreadPool.java:442) at java.lang.Thread.run(Thread.java:595) Caused by: com.caucho.jsp.JspLineParseException: /WEB-INF/jsp/online/system/modules/com.MYCOMPANY.marketing/templates/common/MY_JSP_PAGE.jsp:1: tag = 'out' / attribute = 'value': An error occurred while parsing custom action attribute "value" with value "${fn:contains(TEXTVARIABLE, '|STRINGOFTEXT|')}": org.apache.taglibs.standard.lang.jstl.parser.ParseException: EL functions are not supported. at com.caucho.jsp.java.JspNode.error(JspNode.java:1489) at com.caucho.jsp.java.JspNode.error(JspNode.java:1480) at com.caucho.jsp.java.JavaJspGenerator.validate(JavaJspGenerator.java:466) at com.caucho.jsp.JspCompilerInstance.generate(JspCompilerInstance.java:475) at com.caucho.jsp.JspCompilerInstance.compile(JspCompilerInstance.java:373) at com.caucho.jsp.JspManager.compile(JspManager.java:233) at com.caucho.jsp.JspManager.createPage(JspManager.java:177) at com.caucho.jsp.JspManager.createPage(JspManager.java:157) at com.caucho.jsp.PageManager.getPage(PageManager.java:248) at com.caucho.jsp.PageManager.getPage(PageManager.java:166) at com.caucho.jsp.QServlet.getSubPage(QServlet.java:292) at com.caucho.jsp.QServlet.getPage(QServlet.java:210) at com.caucho.server.dispatch.PageFilterChain.compilePage(PageFilterChain.java:206) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:133) at shared.filter.RemoteAddrFilterBase.doFilter(RemoteAddrFilterBase.java:57) at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70) at com.caucho.server.webapp.DispatchFilterChain.doFilter(DispatchFilterChain.java:115) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:175) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:485) at com.caucho.server.webapp.RequestDispatcherImpl.include(RequestDispatcherImpl.java:350) at org.opencms.flex.CmsFlexRequestDispatcher.includeExternal(CmsFlexRequestDispatcher.java:194) at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:169) at org.opencms.loader.CmsJspLoader.service(CmsJspLoader.java:1193) at org.opencms.flex.CmsFlexRequestDispatcher.includeInternalWithCache(CmsFlexRequestDispatcher.java:423) at org.opencms.flex.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:173) at org.opencms.jsp.CmsJspTagInclude.includeActionWithCache(CmsJspTagInclude.java:364) ... 45 more Thanks for the help!

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  • Java exception when the traffic grow up

    - by sahid
    I have an error with java/solr when the traffic grows up. It seems Solr tries to cast a java.lang.Object to a org.apache.solr.common.util.ConcurrentLRUCache$CacheEntry SEVERE: java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Lorg.apache.solr.common.util.ConcurrentLRUCache$CacheEntry; at org.apache.solr.common.util.ConcurrentLRUCache$PQueue.myInsertWithOverflow(ConcurrentLRUCache.java:377) at org.apache.solr.common.util.ConcurrentLRUCache.markAndSweep(ConcurrentLRUCache.java:329) at org.apache.solr.common.util.ConcurrentLRUCache.put(ConcurrentLRUCache.java:144) at org.apache.solr.search.FastLRUCache.put(FastLRUCache.java:131) at org.apache.solr.search.SolrIndexSearcher.getDocSet(SolrIndexSearcher.java:573) at org.apache.solr.search.SolrIndexSearcher.getDocSet(SolrIndexSearcher.java:641) at org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:1109) at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1090) at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:337) at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:431) at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:231) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129) at org.apache.solr.core.SolrCore.execute(SolrCore.java:1298) at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:340) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:240) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:636) This is my java configuration for tomcat JAVA_OPTS="-Djava.awt.headless=true -D64 -server -Xms4096M -Xmx4096M -XX:+UseConcMarkSweepGC -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=5400 -Dcom.sun.management.jmxremote.ss\ l=false -Dcom.sun.management.jmxremote.authenticate=false" Somebody know why these errors happen ?

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  • Java FAQ: Tudo o que você precisa saber

    - by Bruno.Borges
    Com frequência recebo e-mails de clientes com dúvidas sobre "quando sairá a próxima versão do Java?", ou então "quando vai expirar o Java?" ou ainda "quais as mudanças da próxima versão?". Por isso resolvi escrever aqui um FAQ, respondendo estas dúvidas e muitas outras. Este post estará sempre atualizado, então se você possui alguma dúvida, envie para mim no Twitter @brunoborges. Qual a diferença entre o Oracle JDK e o OpenJDK?O projeto OpenJDK funciona como a implementação de referência Open Source do Java Standard Edition. Empresas como a Oracle, IBM, e Azul Systems suportam e investem no projeto OpenJDK para continuar evoluindo a plataforma Java. O Oracle JDK é baseado no OpenJDK, mas traz outras ferramentas como o Mission Control, e a máquina virtual traz algumas features avançadas como por exemplo o Flight Recorder. Até a versão 6, a Oracle oferecia duas máquinas virtuais: JRockit (BEA) e HotSpot (Sun). A partir da versão 7 a Oracle unificou as máquinas virtuais, e levou as features avançadas do JRockit para dentro da VM HotSpot. Leia também o OpenJDK FAQ. Onde posso obter binários beta Early Access do JDK 7, JDK 8, JDK 9 para testar?A partir do projeto OpenJDK, existe um projeto específico para cada versão do Java. Nestes projetos você pode encontrar binários beta Early Access, além do código-fonte. JDK 6 - http://jdk6.java.net/ JDK 7 - http://jdk7.java.net/ JDK 8 - http://jdk8.java.net/ JDK 9 - http://jdk9.java.net/ Quando acaba o suporte do Oracle Java SE 6, 7, 8? Somente produtos e versões com release oficial são suportados pela Oracle (exemplo: não há suporte para binários beta do JDK 7, JDK 8, ou JDK 9). Existem duas categorias de datas que o usuriário do Java deve estar ciente:  EOPU - End of Public UpdatesMomento em que a Oracle não mais disponibiliza publicamente atualizações Oracle SupportPolítica de suporte da Oracle para produtos, incluindo o Oracle Java SE O Oracle Java SE é um produto e portando os períodos de suporte são regidos pelo Oracle Lifetime Support Policy. Consulte este documento para datas atualizadas e específicas para cada versão do Java. O Oracle Java SE 6 já atingiu EOPU (End of Public Updates) e agora é mantido e atualizado somente para clientes através de contrato comercial de suporte. Para maiores informações, consulte a página sobre Oracle Java SE Support.  O mais importante aqui é você estar ciente sobre as datas de EOPU para as versões do Java SE da Oracle.Consulte a página do Oracle Java SE Support Roadmap e busque nesta página pela tabela com nome Java SE Public Updates. Nela você encontrará a data em que determinada versão do Java irá atingir EOPU. Como funciona o versionamento do Java?Em 2013, a Oracle divulgou um novo esquema de versionamento do Java para facilmente identificar quando é um release CPU e quando é um release LFR, e também para facilitar o planejamento e desenvolvimento de correções e features para futuras versões. CPU - Critical Patch UpdateAtualizações com correções de segurança. Versão será múltipla de 5, ou com soma de 1 para manter o número ímpar. Exemplos: 7u45, 7u51, 7u55. LFR - Limited Feature ReleaseAtualizações com correções de funcionalidade, melhorias de performance, e novos recursos. Versões de números pares múltiplos de 20, com final 0. Exemplos: 7u40, 7u60, 8u20. Qual a data da próxima atualização de segurança (CPU) do Java SE?Lançamentos do tipo CPU são controlados e pré-agendados pela Oracle e se aplicam a todos os produtos, inclusive o Oracle Java SE. Estes releases acontecem a cada 3 meses, sempre na Terça-feira mais próxima do dia 17 dos meses de Janeiro, Abril, Julho, e Outubro. Consulte a página Critical Patch Updates, Security Alerts and Third Party Bulleting para saber das próximas datas. Caso tenha interesse, você pode acompanhar através de recebimentos destes boletins diretamente no seu email. Veja como assinar o Boletim de Segurança da Oracle. Qual a data da próxima atualização de features (LFR) do Java SE?A Oracle reserva o direito de não divulgar estas datas, assim como o faz para todos os seus produtos. Entretanto é possível acompanhar o desenvolvimento da próxima versão pelos sites do projeto OpenJDK. A próxima versão do JDK 7 será o update 60 e binários beta Early Access já estão disponíveis para testes. A próxima versão doJDK 8 será o update 20 e binários beta Early Access já estão disponíveis para testes. Onde posso ver as mudanças e o que foi corrigido para a próxima versão do Java?A Oracle disponibiliza um changelog para cada binário beta Early Access divulgado no portal Java.net. JDK 7 update 60 changelogs JDK 8 update 20 changelogs Quando o Java da minha máquina (ou do meu usuário) vai expirar?Conheçendo o sistema de versionamento do Java e a periodicidade dos releases de CPU, o usuário pode determinar quando que um update do Java irá expirar. De todo modo, a cada novo update, a Oracle já informa quando que este update deverá expirar diretamente no release notes da versão. Por exemplo, no release notes da versão Oracle Java SE 7 update 55, está escrito na seção JRE Expiration Date o seguinte: The JRE expires whenever a new release with security vulnerability fixes becomes available. Critical patch updates, which contain security vulnerability fixes, are announced one year in advance on Critical Patch Updates, Security Alerts and Third Party Bulletin. This JRE (version 7u55) will expire with the release of the next critical patch update scheduled for July 15, 2014. For systems unable to reach the Oracle Servers, a secondary mechanism expires this JRE (version 7u55) on August 15, 2014. After either condition is met (new release becoming available or expiration date reached), the JRE will provide additional warnings and reminders to users to update to the newer version. For more information, see JRE Expiration Date.Ou seja, a versão 7u55 irá expirar com o lançamento do próximo release CPU, pré-agendado para o dia 15 de Julho de 2014. E caso o computador do usuário não possa se comunicar com o servidor da Oracle, esta versão irá expirar forçadamente no dia 15 de Agosto de 2014 (através de um mecanismo embutido na versão 7u55). O usuário não é obrigado a atualizar para versões LFR e portanto, mesmo com o release da versão 7u60, a versão atual 7u55 não irá expirar.Veja o release notes do Oracle Java SE 8 update 5. Encontrei um bug. Como posso reportar bugs ou problemas no Java SE, para a Oracle?Sempre que possível, faça testes com os binários beta antes da versão final ser lançada. Qualquer problema que você encontrar com estes binários beta, por favor descreva o problema através do fórum de Project Feebdack do JDK.Caso você encontre algum problema em uma versão final do Java, utilize o formulário de Bug Report. Importante: bugs reportados por estes sistemas não são considerados Suporte e portanto não há SLA de atendimento. A Oracle reserva o direito de manter o bug público ou privado, e também de informar ou não o usuário sobre o progresso da resolução do problema. Tenho uma dúvida que não foi respondida aqui. Como faço?Se você possui uma pergunta que não foi respondida aqui, envie para bruno.borges_at_oracle.com e caso ela seja pertinente, tentarei responder neste artigo. Para outras dúvidas, entre em contato pelo meu Twitter @brunoborges.

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  • ???Java (CPU 2013?6??)??????????????

    - by OTN-J Master
    6?18??Java SE???????????·??????(CPU)2013?6?????????????????Java????????????????????????????????????????????????????????Java?????????????????????????????? ?????? (JDK/Server JRE/JRE) Java SE 7 Update 25??????????????? (JRE)Java Version 7 Update 25?????????????The Oracle Software Security Assurance Blog? ???????????????Java SE Critical Patch Update - June 2013????????? ?????Java SE Critical Patch Update - June 2013????????????Critical Patch Update??????????????????40?????????37??????????????????????????????????Critical Patch Update??????????34?????????????????????????????????????????CVSS???????????10.0?????Critical Patch Update??????4??????????????????????????????????????????????????????CVSS???????7.5??????Critical Patch Update????????????1??Java????????????????????????????????????????????Critical Patch Update??????????1???Javadoc????????????????????????????Javadoc???1.5???????????????????HTML?????????·??????????????????????????????????(CVE-2013-1571???CERT/CC VU#225657)??Javadoc?????Web???????????HTML?????????????????????????????????????????????????????Web???????????????????????????????Web?????????????????????????Web???????????????????????????CVSS???????4.3??????????Critical Patch Update??????Javadoc???????????????????????????????????????Java API Documentation Updater Tool?????????????????????????(??????)HTML??????????????????????????CERT/CC?Web???????????????Critical Patch Update??????????????????????????????????????????????????Critical Patch Update???????????????????????????????????????Java??????????????????????????????????????????????????Java Autoupdate???????Java.com????????????????????????????????????Java SE Critical Patch Update???????????????????????????????????????????Java??????????????????????????????????????????????????????????????Java Critical Patch Update - June 2013???????Javadoc?????????????

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  • Web application development platform recommendation

    - by TK.Maxi
    Hi all I did a year's worth of Pascal, Visual Basic and C++ 15 years ago, so suffice it to say that I'm a complete n00b & lamer when it comes to this. I really do hope that this question doesn't canned, but if it does, please be so kind as to point me in the direction of where it should be posted. I have an idea, like so many others, for a web app. I don't necessarily have the capital to outsource the development of the app right now, and I probably wouldn't want to, since non-disclosure agreements can be expensive to enforce, especially in this day and age of intercontinental outsourcing. I need the app to be usable on any mobile device (eventually), primarily on the major mobile platforms at first, on the web, (pc/mac/*ix) obviously, on mobile web browsers like opera mobile, etc. I envisage the app interacting with the major social networks like fb, orkut, msn im, twitter, et al in a way where friend's are messaged and/or wall posted, a message is posted to the users wall. Geo-location functionality is a plus, considering the service/app can be location sensitive in two ways, 1, the immediate location of the user, 2. the desired location of the user. I'd like to incorporate OpenID sign on, and the flip-side, the service will require that people (service providers) list their specialities/specialisations/interests/areas of expertise, so that matches to user requests can be made by the service, while users' requests are posted into the web universe. I've probably described a glut of apps out there, but I'd appreciate feedback on the sort of platform that I should look at using, be it hosted on something like Google's app engine, or written in android friendly code, or whatever. I'm a firm believer in herd mentality, especially at the start of a project that I have very little experience in. The more opinions, the merrier! I can't get very much more specific, since that would give the idea away. Thanks for your time and I look forward to hearing from wise and experienced and the fresh and innovative alike. Thanks

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  • Ideal web application framework for newcomers and whether it is better to use Java or PHP based framework?

    - by Pawan
    My primary question is whether a Java based web application framework is better or a PHP based one and why? Moreover, if I were just starting web development then what would be some ideal frameworks to start with, considering I may want to make a full CMS out of it later? I am not looking for a 'best', rather some good recommendations as I understand that CodeIgnitor has not got a long way to go from here : http://heybigname.com/2012/05/06/why-codeigniter-is-dead/

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  • Ajax, Lizard Brain Web Design, JSF, Struts, JavaScript, Mobile Web, Flash, jQuery, GWT, Harmony at I

    - by Kim Won
    Great Indian Developer Summit 2010 – India's Biggest Polyglot Conference and Workshops for IT Software Professionals Bangalore, April 9, 2010: The GIDS.Web Conference and Workshops has announced the complete program of over 30 sessions on how browser and rich web technologies such as AJAX, DHTML, Mashups, Web 2.0, Enterprise 2.0 technologies, and Rich UI technologies are making money and gaining market-share for some of the leading businesses in the world. The GIDS.Web track at Great Indian Developer Summit takes place 21 and 23 April 2010, at the Indian Institute of Science in Bangalore. As one of the longest running independent developer conferences in India, GIDS.Web at the Great Indian Developer Summit 2010 is uniquely positioned to provide a blend of practical, pragmatic and immediately applicable knowledge and a glimpse of the future of technology. During 21 and 23 April 2010, GIDS.Web offers a multi-track conference, workshops, expo show floor, and networking opportunities. The first keynote at GIDS.Web is led by the leading Java EE and Ajax developer, speaker, and author Marty Hall. The best of India's Java and RIA programmers have learnt the subject from Marty's seminal books Core Servlets and JavaServer Pages (first and second editions), More Servlets and JavaServer Pages, and Core Web Programming (first and second editions) from Prentice Hall and Sun Microsystems Press. Marty's keynote address is a comparison of approaches to building rich Internet applications with Ajax. Marty says Ajax development is difficult, and there are several fundamentally different strategies to building Ajaxified Web applications. The keynote address will survey the three most important of these approaches: using an Ajax-enabled JavaScript library such as jQuery, Prototype, Scriptaculous, Dojo, or Ext/JS; using a Web framework such as JSF 2.0 or Struts 2 that has integrated Ajax support; using the Google Web Toolkit (GWT) to build "pure Java" Ajax applications. The talk will compare and contrast these three approaches, discussing the types of applications that fit best for each option. Over the course of the summit Marty will conduct several more sessions on "Choosing an Ajax/JavaScript Toolkit: A Comparison of the Most Popular JavaScript Libraries", "Pure Java Ajax: An Overview of GWT 2.0", "Integrated Ajax Support in JSF 2.0" and "Ajax Support in the Prototype JavaScript Library". The second keynote by the head of Adobe's Flash initiative in India, Ramesh Srinivasaraghavan, explores the state of art in web application development and identify trends that could transform the way we create and use web applications. The talk explains how the Adobe Flash Platform has fuelled this revolution with an integrated set of technologies for delivering the most compelling applications, content and video to the widest possible audience. The Director of Forum Nokia will explain how cloud computing coupled with mobile applications enable consumers to have access to powerful services and improved user experiences never before thought possible. IEEE's 2010 President-Elect Sorel Reisman's afternoon address steps to improve the IT profession in India. Featured talks at GID.Web also include: Web 2.0 Checklist - Deconstructing Modern Websites, Scott Davis Choosing an Ajax/JavaScript Toolkit: Comparison of Popular JavaScript Libraries, Marty Hall Lizard Brain Web Design, Scott Davis Effective Design Processes and Resources for Mobile Web Development, Arabella David NoSQL: The Shift to a Non-relational World, Nosh Petigara Open Source Web Debugging Tools, Matthew McCullough Building Line of Business Applications with Silverlight 4.0, Stephen Forte Hadoop - Divide and Conquer, Matthew McCullough Adobe Flash Catalyst for Agile Interaction Design, Harish Sivaramakrishnan Using jQuery and AJAX to Build Front-ends for ASP.NET and ASP.NET MVC, Pandurang Nayak First Steps to IT Heaven Through the Cloud. Part II: .WEB, Simone Brunozzi Building Rich Internet Applications with SL RIA Web Services, Pandurang Nayak Enriching Cloud Applications with Adobe Flash Platform, Ramesh Srinivasaraghavan Payments for the Web.future, Khurram Khan and Praveen Alavilli Longevity of Scalable Systems, Nishad Kamat Transform yourself into a Mobile App Developer Using Web Run Time, Balagopal K S Developing Multi Screen Applications on Adobe Flash Platform, Hemanth Sharma Why Harmony and For Whom?, Himanshu Goyal IIS Hosting Solution for ASP.net and PHP Web Sites, Nahas Mohammed Building Pluggable Web applications using Django, Lakshman Prasad Workshop: The 180-min AJAX and JSON Spike Class, Scott Davis Workshop: Essence of Functional Programming, Venkat Subramaniam Workshop: Agile Development, Tools, and Teams and Scrum Certification, Stephen Forte Workshop: PHP + Adobe Flex = Killer RIA, Shyamprasad P Workshop: Cloud Computing Boot Camp on the Google App Engine, Matthew McCullough Workshop: Building Data Centric Applications using Adobe Flex and Java, Prashant Singh Workshop: Building Your First Amazon App, Simone Brunozzi Workshop: Windows Azure Deep Dive, Ramaprasanna Chellamuthu Workshop: Monetizing your Apps with PayPal X Payments Platform, Khurram Khan, Praveen Alavilli Workshop: User Expereince Evaluation Model Walkthrough, Sanna Häiväläinen Sponsors of Great Indian Developer Summit 2010 include: Platinum sponsors Microsoft, Oracle Forum Nokia and Adobe; Gold sponsors Intel and SAP; Silver sponsors Quest Software, PayPal, Telerik and AMT. About Great Indian Developer Summit Great Indian Developer Summit is the gold standard for India's software developer ecosystem for gaining exposure to and evaluating new projects, tools, services, platforms, languages, software and standards. Packed with premium knowledge, action plans and advise from been-there-done-it veterans, creators, and visionaries, the 2010 edition of Great Indian Developer Summit features focused sessions, case studies, workshops and power panels that will transform you into a force to reckon with. Featuring 3 co-located conferences: GIDS.NET, GIDS.Web, GIDS.Java and an exclusive day of in-depth tutorials - GIDS.Workshops, from 20 April to 24 April at the IISc campus in Bangalore. At GIDS you'll participate in hundreds of sessions encompassing the full range of Microsoft computing, Java, Agile, RIA, Rich Web, open source/standards, languages, frameworks and platforms, practical tutorials that deep dive into technical skill and best practices, inspirational keynote presentations, an Expo Hall featuring dozens of the latest projects and products activities, engaging networking events, and the interact with the best and brightest of speakers from around the world. For further information on GIDS 2010, please visit the summit on the web http://www.developersummit.com/ A Saltmarch Media Press Release E: [email protected] Ph: +91 80 4005 1000

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  • Error starting JBoss 5.1.0

    - by Alexandre
    I've installed JBoss 5.1.0 on a Xubuntu (running as a guest on VMWare - Windows 7 host). It did work fine for some days, but now I'm completelly unable to start it anymore. Every time I try to start it, I got a "Port 8x83 already in use". I've tried to run it with different ports configurations, and none of them works. I did look for the services using the problematic ports, using netstat and lsof, but they never show up. Since this error occurs in all port configurations, I think this is a Jboss problem. Below is the error stack trace: 2010-06-15 06:21:47,992 INFO [org.jboss.web.WebService] (main) Using RMI server codebase: http://192.168.0.104:8083/ 2010-06-15 06:21:48,085 ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (main) Error installing to Start: name=jboss:service=WebService state=Create mode=Manual requiredState=Installed java.lang.Exception: Port 8083 already in use. at org.jboss.web.WebServer.start(WebServer.java:233) at org.jboss.web.WebService.startService(WebService.java:322) at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:376) at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:322) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96) at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668) at org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:189) at $Proxy38.start(Unknown Source) at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42) at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37) at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62) at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71) at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348) at org.jboss.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:286) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553) at org.jboss.system.ServiceController.doChange(ServiceController.java:688) at org.jboss.system.ServiceController.start(ServiceController.java:460) at org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:163) at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:99) at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:46) at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.java:62) at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50) at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171) at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1178) at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553) at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781) at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:702) at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117) at org.jboss.system.server.profileservice.repository.ProfileDeployAction.install(ProfileDeployAction.java:70) at org.jboss.system.server.profileservice.repository.AbstractProfileAction.install(AbstractProfileAction.java:53) at org.jboss.system.server.profileservice.repository.AbstractProfileService.install(AbstractProfileService.java:361) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553) at org.jboss.system.server.profileservice.repository.AbstractProfileService.activateProfile(AbstractProfileService.java:306) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:271) at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:461) at org.jboss.Main.boot(Main.java:221) at org.jboss.Main$1.run(Main.java:556) at java.lang.Thread.run(Thread.java:619) Caused by: java.net.BindException: Cannot assign requested address at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:365) at java.net.ServerSocket.bind(ServerSocket.java:319) at java.net.ServerSocket.<init>(ServerSocket.java:185) at org.jboss.web.WebServer.start(WebServer.java:226) Any hint on this? Thanks

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  • Visual Studio confused when there are multiple system.web sections in your web.config

    - by Jeff Widmer
    I am trying to start debugging in Visual Studio for the website I am currently working on but Visual Studio is telling me that I have to enable debugging in the web.config to continue: But I clearly have debugging enabled: At first I chose the option to Modify the Web.config file to enable debugging but then I started receiving the following exception on my site: HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid. Config section 'system.web/compilation' already defined. Sections must only appear once per config file. See the help topic <location> for exceptions   So what is going on here?  I already have debug=”true”, Visual Studio tells me I do not, and then when I give Visual Studio permission to fix the problem, I get a configuration error. Eventually I tracked it down to having two <system.web> sections. I had defined customErrors higher in the web.config: And then had a second system.web section with compilation debug=”true” further down in the web.config.  This is valid in the web.config and my site was not complaining but I guess Visual Studio does not know how to handle it and sees the first system.web, does not see the debug=”true” and thinks your site is not set up for debugging. To fix this so that Visual Studio was not going to complain, I removed the duplicate system.web declaration and moved the customErrors statement down.

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  • How to learn how the web works? [closed]

    - by Goma
    I was thinking to start learning ASP.NET Web forms and some of my friends told me that I should learn something else such as ASP.NET MVC or PHP because ASP.NET Web Forms does not learn me how the web works and I will get some misunderstanding of the web if I learn ASP.NET Web Forms. To what extent is that ture? and must I change my path of learning towards ASP.NET MVC or PHP or is it OK if I start with Web Forms?

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