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• ?????????????????????????/???????????Java EE??????????????????????????????????JavaOne Tokyo 2012?????|WebLogic Channel|??????

  - by ???02

  ??????·???????????????????·???????????????????/????????????????????????????――?????6?????????????????????WebLogic Server?????????????????????????????????????????????????????????2012?4???????JavaOne Tokyo 2012????????????????????·????????????????Java EE???????????????????????????????(???)??????????????????????????　?????????????NTT??????????????????????????·???????????????????????2005???????1??????????·?????????2006??????????????????????Java EE??????????????????????????????????????????????????????????????????????????????????????????????????????????? DU ?????? ???????????????? ????????????　?? ????????????????????????????????31????????????????????????????·???????????????????????????30?????????????20??????????????3?????????????????????????????????????????????2???????????????????????????????????????????????????????????????????????????????????????????　????????????????????????????????????????????????????????????2??????????????????????:??/???????????????????????????????????2??????????/???????:????????????????????????????????2??~1????????????/???????????????·???????????　?????????????????????????????2?????????????????????????·????(B2C????????????????)?????????????????????????????????????????????????????????????????????????????/??????????????????????　?????????????????????????????????????(???)?????????(??/???????)???????????????????????????????????????????????????????????????????????????????????????????????·?????WebLogic Server????????·?????Informix????????????　?????????????????????????????????????????B2C??????????C2C???????????????????????????C2C????????????????????????????????????????????????????????????????????????????????????????????????????????????·????????????????????????????????1????????????????????????????????????????????????　????????????????????????????????????????????????????????????????????????????????Java EE?????????????????????????????????????????????????????????????????????????????????????????????????????????????　??????????????????3???????????????????(Inexpensive):????????????????????????????????(Agile):???????????????????????????(Simple):????????????????????????　??????????2006???5????????????????????????????????????????Java EE?????????????????????????????????Java?????????????(???)???????????·??????????????????????????????????????????????????????????????????????Java???????????????????????????????????WebLogic Server??????????????????????????????????????(???)????????????????????????????????　????????????????????????????????????????????WebLogic Server?????????????????????????/???????????????????GlassFish????????????GlassFish????Java EE?????????????????????????????????????????WebLogic Server??????????????????Tomcat???????????????(???)??????????????????????????????????　????????????????????????????WebLogic Server?????????????WebLogic Server?????????????????????????????????????JRockit Mission Control???????????????(???)??????WebLogic Server?GlassFish?????　???????????????????????????????????C2C??????????????????????????????????????2006????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　?????????????????????????????????????????????RDB?????/????·???(KVS)???????NoSQL??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　?????????????/??????????API???????????????????????????????????????KVS?????????????????GlassFish?????KVS??????????API?GlassFish??????????????????????????JAX-RS???????????????(REST API)????????????????????????????????????????????????????????????????　?KVS??????????API?????????????????????????????????????????????????????????????????????????????????????????????????(???)??????????　????API?????????????????????????????????????????????170??????????　??????????Ruby on Rails??????????????????????????????(???)?????????????????????????????????????(???)??????????????????????????????????????????????????????????????????????Maven 2???????????????????????????????????????????????????????????????????????????????????????????????　GlassFish???????????????????????????????????????????????????????????????????????????????　???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　?????????????????????????????????????????????????????????????????????????????????????????/?????????????????????????????????????????????????/????????????????????????????

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• Solr error; Anybody know what this means?

  - by Camran

  I am installing solr on my VPS (Ubuntu 9.10) via PuTTY. First, I thought about installing Solr with Tomcat, but then after installing tomcat, I changed my mind and went for the Jetty which comes with Solr. Now that I have setup everything on my Server, and try to start the "start.jar" file, I get some errors... Here is some text from the log file: 2010-05-29 00:22:42.074::INFO: jetty-6.1.3 2010-05-29 00:22:42.134::INFO: Extract jar:file:/var/www/webapps/solr.war!/ to /var/www/work/Jetty_0_0_0_0_8983_solr.war__solr__k1kf17/webapp May 29, 2010 12:22:42 AM org.apache.solr.core.SolrResourceLoader locateSolrHome INFO: JNDI not configured for solr (NoInitialContextEx) May 29, 2010 12:22:42 AM org.apache.solr.core.SolrResourceLoader locateSolrHome INFO: solr home defaulted to 'solr/' (could not find system property or JNDI) May 29, 2010 12:22:42 AM org.apache.solr.core.SolrResourceLoader <init> INFO: Solr home set to 'solr/' May 29, 2010 12:22:42 AM org.apache.solr.servlet.SolrDispatchFilter init INFO: SolrDispatchFilter.init() May 29, 2010 12:22:42 AM org.apache.solr.core.SolrResourceLoader locateSolrHome INFO: JNDI not configured for solr (NoInitialContextEx) May 29, 2010 12:22:42 AM org.apache.solr.core.SolrResourceLoader locateSolrHome INFO: solr home defaulted to 'solr/' (could not find system property or JNDI) May 29, 2010 12:22:42 AM org.apache.solr.core.CoreContainer$Initializer initialize INFO: looking for solr.xml: /var/www/solr/solr.xml May 29, 2010 12:22:42 AM org.apache.solr.core.SolrResourceLoader <init> INFO: Solr home set to 'solr/' Anybody know what this is? Thanks

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• Grails beginner problem "Failed to invoke Servlet 2.5"

  - by A Lion

  I'm trying to get Groovy on Grails set up on a Snow Leopard machine. I followed all the grails.com install directions and am trying to start the application from Grails: A Quick-Start Guide by Dave Klein. I ran grails create-app TekDays with no apparent problems and was able to cd to the TekDays folder, but when I try to run grails run-app I get the following: Welcome to Grails 1.3.1 - http://grails.org/ Licensed under Apache Standard License 2.0 Grails home is set to: /grails Base Directory: /apps/TekDays Resolving dependencies... Dependencies resolved in 4469ms. Running script /grails/scripts/RunApp.groovy Environment set to development [delete] Deleting directory /Users/name/.grails/1.3.1/projects/TekDays/tomcat Running Grails application.. 2010-05-24 21:42:39,559 [main] ERROR context.GrailsContextLoader - Error executing bootstraps: Failed to invoke Servlet 2.5 getContextPath method java.lang.IllegalStateException: Failed to invoke Servlet 2.5 getContextPath method at org.grails.tomcat.TomcatServer.start(TomcatServer.groovy:164) at grails.web.container.EmbeddableServer$start.call(Unknown Source) at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy:159) at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy) at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:282) at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy) at _GrailsRun_groovy$_run_closure5.doCall(_GrailsRun_groovy:150) at _GrailsRun_groovy$_run_closure5.call(_GrailsRun_groovy) at _GrailsRun_groovy.runInline(_GrailsRun_groovy:116) at _GrailsRun_groovy.this$4$runInline(_GrailsRun_groovy) at _GrailsRun_groovy$_run_closure1.doCall(_GrailsRun_groovy:59) at RunApp$_run_closure1.doCall(RunApp.groovy:33) at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381) at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415) at gant.Gant$_dispatch_closure7.doCall(Gant.groovy) at gant.Gant.withBuildListeners(Gant.groovy:427) at gant.Gant.this$2$withBuildListeners(Gant.groovy) at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source) at gant.Gant.dispatch(Gant.groovy:415) at gant.Gant.this$2$dispatch(Gant.groovy) at gant.Gant.invokeMethod(Gant.groovy) at gant.Gant.executeTargets(Gant.groovy:590) at gant.Gant.executeTargets(Gant.groovy:589) Caused by: java.lang.NoSuchMethodException: javax.servlet.ServletContext.getContextPath() at java.lang.Class.getMethod(Class.java:1605) ... 23 more I've googled every derivative of "Failed to invoke Servlet 2.5" that I can think of, but have thus far been unable to find anything that helps me understand, yet alone resolve, the error. Any advice to help me resolve this would be very much appreciated!

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• Can xjc -version be trusted?

  - by JasonPlutext

  I've spent the day debugging an issue with JAXB getting namespaces wrong or missing (possibly related to Marshaller.JAXB_FRAGMENT, but that's not the point here). I found the problem occurs with JAXB RI 2.1.10 in my endorsed dir. It is fixed if I use JAXB RI 2.2.4 or 2.2.6 Here is what is really confusing (and what made it take so long). The problem occurs on Linux with: $ java -version java version "1.7.0_03" OpenJDK Runtime Environment (IcedTea7 2.1.1pre) (7~u3-2.1.1~pre1-1ubuntu2) OpenJDK 64-Bit Server VM (build 22.0-b10, mixed mode) $ xjc -version xjc 2.2.4 but it should work fine, if this java really uses JAXB RI 2.2.4 !! Similarly, I can't reproduce the issue on Windows with Java 1.6.0_27, which reports: C:\Program Files\Java\jdk1.6.0_27\bin>java -version java version "1.6.0_27" Java(TM) SE Runtime Environment (build 1.6.0_27-b07) Java HotSpot(TM) 64-Bit Server VM (build 20.2-b06, mixed mode) C:\Program Files\Java\jdk1.6.0_27\bin>xjc -version xjc version "JAXB 2.1.10 in JDK 6" JavaTM Architecture for XML Binding(JAXB) Reference Implementation, (build JAXB 2.1.10 in JDK 6) and yet if I put 2.1.10 RI in my endorsed dir, the problem occurs. It should occur with 1.6.0_27, if that really uses JAXB RI 2.1.10. It seems to me that the problem I'm experiencing has been fixed in the reference implementation somewhere after 2.1.10 and before 2.2.4, but that neither of the 2 VM's above actually use the JAXB version they claim to. Or possibly they use the xjc they claim, but not what is in jaxb-api.jar and jaxb-impl.jar (I know there is a difference in the namespace prefix mapper property, but that won't be causing this problem). I've done these experiments on Win 7 and Ubuntu, in tomcat (no eclipse), and in eclipse (no tomcat), so I'm pretty confident I'm explaining my findings correctly. Can anyone provide any insight into what is happening? If I'm right, does anyone know what versions of JAXB the various Sun/Oracle JDKs really use?

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• XML parse node value as string

  - by bharathi

  My xml file is look like this . I want to get the value node text content as like this . <property regex=".*" xpath=".*"> <value> 127.0.0.1 </value> <property regex=".*" xpath=".*"> <value> val <![CDATA[ <Valve className="org.tomcat.AccessLogValve" exclude="PASSWORD,pwd,pWord,ticket" enabled="true" serviceName="zohocrm" logDir="../logs" fileName="access" format="URI,&quot;PARAM&quot;,&quot;REFERRER&quot;,TIME_TAKEN,BYTES_OUT,STATUS,TIMESTAMP,METHOD,SESSION_ID,REMOTE_IP,&quot;INTERNAL_IP&quot;,&quot;USER_AGENT&quot;,PROTOCOL,SERVER_NAME,SERVER_PORT,BYTES_IN,ZUID,TICKET_DIGEST,THREAD_ID,REQ_ID"/> ]]> test </value> </property> I want to get text as order they specified in a file . Here is my java code . Document doc = parseDocument("properties.xml"); NodeList properties = doc.getElementsByTagName("property"); for( int i = 0 , len = properties.getLength() ; i < len ; i++) { Element property = (Element)properties.item(i); //How can i proceed further . } Output Expected : Node 1 : 127.0.0.1 Node 2 : val <Valve className="org.tomcat.AccessLogValve" exclude="PASSWORD,pwd,pWord,ticket" enabled="true" serviceName="zohocrm" logDir="../logs" fileName="access" format="URI,&quot;PARAM&quot;,&quot;REFERRER&quot;,TIME_TAKEN,BYTES_OUT,STATUS,TIMESTAMP,METHOD,SESSION_ID,REMOTE_IP,&quot;INTERNAL_IP&quot;,&quot;USER_AGENT&quot;,PROTOCOL,SERVER_NAME,SERVER_PORT,BYTES_IN,ZUID,TICKET_DIGEST,THREAD_ID,REQ_ID"/> test Please suggest your views .

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• issue in property file

  - by devuser

  I want to load the property file when tomcat is starting.so I'm using servletContextListener to do that and i can get values of property file to my web application. But i want to keep the same value after changing the property file once log into web application.But when i change the value of property file and log into system again it change the value to new one.I want to keep the same value that loaded when tomcat was starting.how can i implement this? My coding is as below import javax.servlet.*; import java.io.IOException; import java.util.Properties; import java.util.logging.Level; import java.util.logging.Logger; import java.io.*; import java.util.ResourceBundle; public final class sysProperties implements javax.servlet.ServletContextListener { private static Properties props = new Properties(); private static String file_name = "com/util/contact.properties"; public addSystemProperties() { } public void contextInitialized(ServletContextEvent servletContextEvent) { // Get the context ServletContext servletContext = servletContextEvent.getServletContext(); // Set a context attribute try { // props.load(servletContext.getResourceAsStream(file_name)); props.load(getClass().getClassLoader().getResourceAsStream(file_name)); System.out.println(" Application X is starting"); servletContext.setAttribute("h1",props.getProperty("home.h1")); servletContext.setAttribute("h2",props.getProperty("home.h2")); System.out.println("h1"+servletContext.getAttribute("h1")); System.out.println("h2"+ servletContext.getAttribute("h2")); ; } catch (Exception e) { System.out.println(" Error setting context attribute: " + e.getMessage()); } } public void contextDestroyed(ServletContextEvent servletContextEvent) { // Get the context ServletContext servletContext = servletContextEvent.getServletContext(); // Output the context variable we set earlier System.out.println(" Application X is shutting down"); System.out.println(" Value of h1 is: " + servletContext.getAttribute("h1")); System.out.println(" Value of h2 is: " + servletContext.getAttribute("h2")); // Clean up (not really necessary as the context is being destroyed, but let's be neat) servletContext.removeAttribute(props.getProperty("h1")); servletContext.removeAttribute(props.getProperty("h2")); } }

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• traversal of multiple separate web services in a ring network

  - by qkrsppopcmpt

  I am facing a design problem, here is some basic requirement: Aggregator 1. Separate service for blog,video,images and associations. 2. Each of the service should be completely separate, that means they run on separate tomcat. 3. And each aggregator must be able to query local database and other aggregators 4. Traversal of services must be asynchronous using a ring network. For example, we have a ring like ws1-ws2-ws3-ws4-ws1. Each node represents one type of one aggregator. The traveral goes in this way: the query from ws1 to ws2, and ws1 is waiting for the response from ws2 asynchronously; ws2 to ws3, also ws2 wait for ws3 asynchronously. If ws3 has the data, reply to ws2 then to ws1, then reply. However if ws3 goes away, the traversal should go back to ws2, then to ws1, then go to ws4, then go to ws3 again. then tells ws4 since ws3 fails. The required technology is axis2 and tomcat 6. Does anybody have any clue about it? If it is clear, I can clarify the question more clearly. Thanks very much.

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• Apache tomcat7 + couchdb in the same host

  - by demotics2002

  I couldn't find any guide on the internet about how to make them work together. I found some couchdb tutorials but they are mostly having the web pages hosted in couchdb's own webserver. My requirement: 1. Use tomcat 7 (or other versions) - i will be using jsp for the website. It has some features that require file upload and processing of files, file generation, and etc., that will require java. It also has admin console that will require the next item, 2. ExtJS (maybe V4) - I will be needing this in the admin console page for restful access to couchdb and other ui components (sorry but I am not considering jquery at the moment because I am already familiar with . 3. Couchdb - because the client needs a dynamic structure of data. Now my question is how to make tomcat and couchdb run on the same host (and port of course)? As much as possible I would like to avoid making my pages doing cross domain js calls. Worst case I may have to create a servlet that overrides put|get|post|delete that calls couchdb (either by using a driver or httpclient).

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• unable to place breakpoints in eclipse

  - by anjanb

  I am using eclipse europa (3.5) on windows vista home premium 64-bit using JDK 1.6.0_18 (32 BIT). Normally, I am able to put breakpoints just fine; However, for a particular class which is NOT part of the project (this class is inside a .JAR file (.JAR file is part of the project) ), although I have attached a source directory to this .JAR file, I am unable to place a breakpoint in this class. If I double-click on the breakpoint pane(left border), I notice that a class breakpoint is placed. I was wondering if there was NO debug info; However, found that this particular class was compiled using ant/javac task using debug="true" and debuglevel="lines,vars,source". I even ran jad on this class to confirm that it indeed contained the debug info. So, why is eclipse preventing me from placing a breakpoint ? EDIT : Just so everyone understands the context, this is a webapp running under tomcat 6.0. I am remote debugging the application from eclipse after having started tomcat outside. The application is working just fine. I am trying to understand the behavior of the above class which I'm unable to do since eclipse is not letting me set a BP. P.S : I saw a few threads here talking about BPs not being hit but in my case, I am unable to place the BP! P.P.S : I tried JDK 1.6.0_16 before trying out 1.6.0_18. Thanks for any pointers.

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• Setting up ehcache replication - what multicast settings do I need?

  - by Darren Greaves

  I am trying to set up ehcache replication as documented here: http://ehcache.sourceforge.net/EhcacheUserGuide.html#id.s22.2 This is on a Windows machine but will ultimately run on Solaris in production. The instructions say to set up a provider as follows: <cacheManagerPeerProviderFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory" properties="peerDiscovery=automatic, multicastGroupAddress=230.0.0.1, multicastGroupPort=4446, timeToLive=32"/> And a listener like this: <cacheManagerPeerListenerFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory" properties="hostName=localhost, port=40001, socketTimeoutMillis=2000"/> My questions are: Are the multicast IP address and port arbitrary (I know the address has to live within a specific range but do they have to be specific numbers)? Do they need to be set up in some way by our system administrator (I am on an office network)? I want to test it locally so am running two separate tomcat instances with the above config. What do I need to change in each one? I know both the listeners can't listen on the same port - but what about the provider? Also, are the listener ports arbitrary too? I've tried setting it up as above but in my testing the caches don't appear to be replicated - the value added in one tomcat's cache is not present in the other cache. Is there anything I can do to debug this situation (other than packet sniffing)? Thanks in advance for any help, been tearing my hair out over this one!

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• Issues Deploying ROOT Context in Tomcat6

  - by Josh K

  I'm working on getting an application deployed to the ROOT ("/") context in my Tomcat 6 instance. Here's what has been done: Defined another virtual host (domain.com) Created the respective folder (/etc/tomcat6/Catalina/domain.com) Set it to auto deploy WAR's Set appBase to CATALINA_BASE/domainapps and created respective folder Copied manager.xml from localhost to domain.com. Now I'm trying to deploy into the ROOT context by uploading a ROOT.war to CATALINA_BASE/domainapps. This isn't working. I don't get any exceptions thrown, but the stock ROOT page ("It works !") stays up. I have successfully deployed it into another context (by uploading domainapp.war and viewing at /domainapp), but not ROOT. Re-reading the Virtual Host setup it makes reference to CATALINA_HOME and CATALINA_BASE. My CATALINA_HOME is at /usr/share/tomcat6/domainapp while CATALINA_BASE is /var/lib/tomcat6. Which should I be using for what? Currently haven't touched CATALINA_HOME but will try messing with a few things there. A better question might be what is the generally accepted flow taken to setup a new Tomcat instance and deploy an application to the root context.

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• How do I authenticate regarding EJB3 Container ?

  - by FMR

  I have my business classes protected by EJB3 security annotations, now I would like to call these methods from a Spring controller, how do I do it? edit I will add some information about my setup, I'm using Tomcat for the webcontainer and OpenEJB for embedding EJB into tomcat. I did not settle on any version of spring so it's more or less open to suggestions. edit current setup works this way : I have a login form + controller that puts a User pojo inside SessionContext. Each time someone access a secured part of the site, the application checks for the User pojo, if it's there check roles and then show the page, if it's not show a appropriate message or redirect to login page. Now the bussiness calls are made thanks to a call method inside User which bypass a probable security context which is a remix of this code found in openejb security examples : Caller managerBean = (Caller) context.lookup("ManagerBeanLocal"); managerBean.call(new Callable() { public Object call() throws Exception { Movies movies = (Movies) context.lookup("MoviesLocal"); movies.addMovie(new Movie("Quentin Tarantino", "Reservoir Dogs", 1992)); movies.addMovie(new Movie("Joel Coen", "Fargo", 1996)); movies.addMovie(new Movie("Joel Coen", "The Big Lebowski", 1998)); List<Movie> list = movies.getMovies(); assertEquals("List.size()", 3, list.size()); for (Movie movie : list) { movies.deleteMovie(movie); } assertEquals("Movies.getMovies()", 0, movies.getMovies().size()); return null; } });

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• What's the best way to learn .NET?

  - by duffymo

  I've been developing Java EE for quite a while now. I've used WebLogic, Tomcat, Spring, and Hibernate extensively, so I have a mental model of what features are available and how things are developed and deployed. The problem that I have with .NET is that I don't have a clear mapping of its features onto Java EE. Here's what I know so far: Java EE - .NET Java - C# JAR - DLL WAR - ? (deployment in general) EAR - ? (deployment in general) Tomcat - IIS web server JSP - ASP? JDBC - ODBC JMS - MSMQ JTA - Microsoft Transaction Manager So much of the functionality that WebLogic handles appears to be dispersed throughout the Windows OS. My confusion kicks in when I see the waves of books at Borders - VB.NET, ASP.NET, C#, etc. If I'm not a VB programmer, would it be possible to stick with C# and write enterprise apps that are the equivalent of what I'm used to with Java EE? If there were a Top Three list of books to learn from, what would they be? The "Head First" series has certainly been successful for Java. http://www.amazon.com/Head-First-C-Brain-Friendly-Guides/dp/0596514824/ref=sr_1_1?ie=UTF8&s=books&qid=1224121193&sr=8-1 Equally well recommended for .NET learning? Thanks. - %

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• Spring 3.0 vs J2EE 6.0

  - by StudiousJoseph

  Hi everybody, I'm confronted with a situation... I've been asked to give an advise regarding which approach to take, in terms of J2EE development between Spring 3.0 and J2EE 6.0. I was, and still am, a promoter of Spring 2.5 over classic J2EE 5 development, specially with JBoss, I even migrated old apps to Spring and influenced the re-definition of the development policy here to include Spring specific APIs, and helped the development of a strategic plan to foster more lightweight solutions like Spring + Tomcat, instead of the heavier ones of JBoss, right now, we're using JBoss merely as a Web container, having what i call the "container inside the container paradox", that is, having Spring apps, with most of its APIs, running inside JBoss, So we're in the process of migrating to tomcat. However, with the coming of J2EE 6.0 many features, that made Spring attractive at that time, easy deployment, less-coupling, even some sort of D.I, etc, seems to have been mimicked, in one way or the other. JSF 2.0, JPA 2.0, WebBeans, WebProfiles, etc. So, the question goes... From your point of view, how save, and logical, it is to continue to invest in a non-standard J2EE development framework like Spring given the new perspectives offered by J2EE 6.0? Can we talk about maybe 3 or 4 more years of Spring development, or do you recommend early adoption of J2EE 6.0 APIs and it's practices? I'll appreciate any insights with this...

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• Java - Problem in deploying Web Application

  - by Yatendra Goel

  I have built a Java Web Application and packed it in a .war file and tested it on my local tomcat server and it is running fine. But when I deployed it on my client's server, it is showing an error. According to the remote server (my client's server), it is not finding a tld file packed in a jar file which I had placed in WEB-INF/lib directory. But when I checked the WEB-INF/lib directory for the jar file, i found that it was there. The contents of META-INF/MANIFEST.MF is as follows: Manifest-Version: 1.0 Class-Path: I think that there is no need to explicitly mention the classpath of WEB-INF/lib directory as it is in the classpath of any web application by default. Then, why the server can't find the jar file in the lib directory when I deployed it on a remote server and why it is working when I deployed the same application on my local server. I posted a question for this at http://stackoverflow.com/questions/2441254/struts-1-struts-taglib-jar-is-not-being-found-by-my-web-application but found that the problem is unusual as nobody could answer it. So my questions are as follows: Q1. Is WEB-INF/lib still remains on the classpath if I leave the classpath entry blank as shown above in the MANIFEST.MF file or I should delete the classpath entry completely from the file or I should explicitly enter Class-Path: /WEB-INF/lib as the classpath entry? Q2. I have JSP pages, Servlets and some helper classes in the web application. Jsp pages are located at the root. Servlets and helper classes are located in WEB-INF/classes folder. So Is there any problem if my helper classes are located in the WEB-INF/classes folder? Note: Please note that this question is not same as my previous question. It is a follow-up question of my previous question. Both the servers (local and remote) are tomcat servers.

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• How do I post a .wav file from CS5 Flash, AS3 to a Java servlet?

  - by Muostar

  Hi, I am trying to send a byteArray from my .fla to my running tomcat server integrated in Eclipse. From flash I am using the following code: var loader:URLLoader = new URLLoader(); var header:URLRequestHeader = new URLRequestHeader("audio/wav", "application/octet-stream"); var request:URLRequest = new URLRequest("http://localhost:8080/pdp/Server?wav=" + tableID); request.requestHeaders.push(header); request.method = URLRequestMethod.POST; request.data = file;//wav; loader.load(request); And my java servlet looks as follows: try{ int readBytes = -1; int lengthOfBuffer = request.getContentLength(); InputStream input = request.getInputStream(); byte[] buffer = new byte[lengthOfBuffer]; ByteArrayOutputStream output = new ByteArrayOutputStream(lengthOfBuffer); while((readBytes = input.read(buffer, 0, lengthOfBuffer)) != -1) { output.write(buffer, 0, readBytes); } byte[] finalOutput = output.toByteArray(); input.close(); FileOutputStream fos = new FileOutputStream(getServletContext().getRealPath(""+"/temp/"+wav+".wav")); fos.write(finalOutput); fos.close(); When i run the flash .swf file and send the bytearray to the server, I receive following in the server's console window:: (loads of loads of Chinese symbols) May 20, 2010 7:04:57 PM org.apache.tomcat.util.http.Parameters processParameters WARNING: Parameters: Character decoding failed. Parameter '? (loads of loads of Chinese symbols) and then looping this for a long time. It is like I recieve the bytes but not encoding/decoding them correctly. What can I do?

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• GWT in its web-mode throws StatusCodeException but in its hosted-mode , it's working perfect

  - by broshni

  Hi to all, I am new to this forum. Actually I have an issue here regarding my application which is hibernate+struts based application. Recently we have decided to integrate GWT into our application. We are using gwt 1.5.3 build. We have set up everything exactly as we find in documentation and various blogs. Yeah I am now in a very nervy state as gwt in its web- mode is treating me in a very embarassing manner. But it is compiling and working perfectly fine in its hosted-mode and everything works fine as we expected and designed. When I try to integrate GWT with our application i.e. running in tomcat (http://localhost:8080/myapps/example.do? reqCode=takeMeToGWT&userId=12&templateId=10). The gwt page is loaded partially and in the midst it throws an exception i.e. StatusCodeException. This doesn't happen when I run the gwt application in hosted-mode ( http://localhost:8888/com.myapp.gwt.MyApp/Home.html ) . I am using Intellij Idea 8, struts 1.3 ,hibernate 3 and tomcat 5.5 . Expecting your responses at the earliest possible time. Thanking you B Roshnikanta Sharma [email protected]

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• Single log file for multiple webapps

  - by Ashish Aggarwal

  In my tomcat there are multiple webapps deployed and they communicate with each other. Currently they all have their own log file. But when there is some issue comes from call I have to 1st check with the app to whom I made a call and check log file of respective apps involved in the call. So I want that, as all apps is deployed in same tomcat and sharing a common log4j, if a call made to any app then all logs should be in a single log file and no matters how my webapps are involved all error comes from any webapp during the call should be in a single log file. I have no idea how can I achieve this. So any help is appreciable. Edited: I think my question is not cleared so updated with use case: I have three webapps A, B, C having logs files as A.log, B.log and C.log. I made two calls. 1st one to A (that internally calls C) and 2nd to B (that internally calls C). Now logging of first call must be in A.log (with the logs of every step performed inside the webapp c) and second call must be in B.log (with the logs of every step performed inside the webapp c).

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• Sync version of the project with Java

  - by Alexadar

  I have a problem, I need to sync version of the project. Changes are performed on main project that resides on central Coldfusion server. There are about 30 remote Coldfusion servers, that has to sync with latest version on central server. New synch application will to be done in Java! I have a direct link to each remote location. Mostly Windows OS and Windows tools are used. My idea: The synchronization is performed at the level of synchronization of folders. I would like to avoid the use of SVN and similar tools. My idea is to carry out comparison of folders on the local server (comparison is performed between the old and new versions),with NO communication with remote servers, make the difference between the versions and the same is sent to the remote machines. We will install Tomcat on every remote server. "Sync application" deployed on Tomcat will take care about differences. Remote server will return me an answer, about the success of the sync. Any kind of suggestion or completely new approach on this topic is more than welcome. Thanks Best regards

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• How to combine apache requests?

  - by Bruce

  To give you the situation in abstract: I have an ajax client that often needs to retrieve 3-10 static documents from the server. Those 3-10 documents are selected by the client out of about 100 documents in total. I have no way of knowing in advance which 3-10 documents the client will require. Additionally, those 100 documents are generated from database content, and so change over time. It seems messy to me to have to make 10 ajax requests for 10 separate documents. My first thought was to write a jsp that could use the include action. ie in pseudo code for (param in params){ jsp:include page="[param]" } But it turns out the tomcat doesn't just include the html resource, it recompiles it, generating a class file every time, which also seems wasteful. Does any one know of a neat solution for combining apache requests to static files to make one request, rather than several, but without the overhead of, for example, tomcat generating extra class files for each static file and regenerating them each time the static file changes? Thanks! Hopefully my question is clear - it's a bit long-winded.

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• Problem when compressing SWF in Linux with java.util.zip

  - by CaioToOn

  Hi! I've created a servlet that changes the binaries of a SWF file and output it to the user. The SWF is compressed by ZLIB by default. Then I inflate, change the binaries, deflate and output the result. Everything was running right on a Windows Server 2008 (also in 2003). Currently, we need change the server to Linux, and then, this servlet is somehow outputing a corrupted SWF File... what could be the problem? What intrigues me more is that there is no difference between the Windows and Linux servlet versions. Is there any undocumented linux specific behaviour for the java.util.zip package? My Windows Server is (where the servlet is working): Windows Server 2008 (6.0 - x86) Apache 2.2.11 Tomcat 6.0.16.0 Java JDK 1.6.0_12-b04 My CentOS Server is (where te servlet doesn't work) CentOS 5.4 (2.6.18-164.15.1.el5 - i386) Apache 2.2.3 Tomcat 6.0.16.0 Java JDK 1.6.0_12-b04 Any lead would be appreciated! Cheers, CaioToOn!

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• Mysterious HttpSession and session-config dependency

  - by OneMoreVladimir

  Good day. I'm developing a Java web app with Servlets\JSP using Tomcat 7.0. During request from client I put and object into the session and use forward. After the forward processing the same request the object can be retreived if the secure parameter is false otherwise it is not stored in session. <session-config> <session-timeout>15</session-timeout> <cookie-config> <http-only>true</http-only> <secure>true</secure> </cookie-config> <tracking-mode>COOKIE</tracking-mode> </session-config> I've figured out that "...cookies can be created with the 'secure' flag, which ensures that the browser will never transmit the specified cookie over non-SSL...". I've configured Tomcat to use SSL, but that haven't helped. Changing the tracking mode to SSL haven't helped as well. How do session-config and HttpSession object correlate in this case? What could be the problem?

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• Performance analytics via DBMS "plugins", or other solution

  - by Polynomial

  I'm working on a systems monitoring product that currently focuses on performance at the system level. We're expanding out to monitoring database systems. Right now we can fetch simple performance information from a selection of DBMS, like connection count, disk IO rates, lock wait times, etc. However, we'd really like a way to measure the execution time of every query going into a DBMS, without requiring the client to implement monitoring in their application code. Some potential solutions might be: Some sort of proxy that sits between client and server. SSL might be an issue here, plus it requires us to reverse engineer and implement the network protocol for each DBMS. Plugin for each DBMS system that automatically records performance information when a query comes in. Other problems include "anonymising" the SQL, i.e. taking something like SELECT * FROM products WHERE price > 20 AND name LIKE "%disk%" and producing SELECT * FROM products WHERE price > ? AND name LIKE "%?%", though this shouldn't be too difficult with some clever parsing and regex. We're mainly focusing on: MySQL MSSQL Oracle Redis mongodb memcached Are there any plugin-style mechanisms we can utilise for any of these? Or is there a simpler solution?

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• InnoDB: Error: log file ./ib_logfile0 is of different size

  - by jack

  I just added the following lines in /etc/mysql/my.cnf after I converted one database to use InnoDB engine. innodb_buffer_pool_size = 2560M innodb_log_file_size = 256M innodb_log_buffer_size = 8M innodb_flush_log_at_trx_commit = 2 innodb_thread_concurrency = 16 innodb_flush_method = O_DIRECT But it raise "ERROR 2013 (HY000) at line 2: Lost connection to MySQL server during query" error restarting mysqld. And mysql error log shows the following InnoDB: Error: log file ./ib_logfile0 is of different size 0 5242880 bytes InnoDB: than specified in the .cnf file 0 268435456 bytes! 100118 20:52:52 [ERROR] Plugin 'InnoDB' init function returned error. 100118 20:52:52 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 100118 20:52:52 [ERROR] Unknown/unsupported table type: InnoDB 100118 20:52:52 [ERROR] Aborting So I commented out this line # innodb_log_file_size = 256M And it restarted mysql successfully. I wonder what's the "5242880 bytes of log file" showed in mysql error? It's the first database on InnoDB engine on this server so when and where is that log file created? In this case, how can I enable innodb_log_file_size directive in my.cnf? EDIT I tried to delete /var/lib/mysql/ib_logfile0 and restart mysqld but it still failed. It now shows the following in error log. 100118 21:27:11 InnoDB: Log file ./ib_logfile0 did not exist: new to be created InnoDB: Setting log file ./ib_logfile0 size to 256 MB InnoDB: Database physically writes the file full: wait... InnoDB: Progress in MB: 100 200 InnoDB: Error: log file ./ib_logfile1 is of different size 0 5242880 bytes InnoDB: than specified in the .cnf file 0 268435456 bytes! Resolution It works now after deleted both ib_logfile0 and ib_logfile1 in /var/lib/mysql

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• WordPress: can't access WordPress.com and other external sites?

  - by Rax Olgud

  Hello, I recently started a WordPress blog using hosting at MyDomain (they offer the application "natively"). The blog works fine, however I have two plugins I can't seem to install correctly. First, the WordPress.com Stats plugin requires the API Key. When I input it, I get the following message: Error from last API Key attempt: Your blog was unable to connect to WordPress.com. Please ask your host for help. (transport error - could not open socket: 110 Connection timed out) Second, the Akismet plugin is not configured. When I go to Akismet page to insert my API key, it has the following message: There was a problem connecting to the Akismet server. Please check your server configuration. I assume the two issues are related... I approached my hosting provider about the subject and all they said is that they don't support WordPress, only provide means to install it. To clarify, up to this point I have only been able to install plugins that don't require an API key. What can I do to diagnose the problem and fix it? As a work-around, are there comparable stats and anti-spam plugins that don't require an API key? Many thanks.

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