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  • run two thread at the same time in java

    - by user1805005
    i have used timertask to schedule my java program. now when the run method of timertask is in process, i want to run two threads which run at the same time and do different functions. here is my code.. please help me.. import java.util.Calendar; import java.util.Date; import java.util.Timer; import java.util.TimerTask; public class timercheck extends TimerTask{ // my first thread Thread t1 = new Thread(){ public void run(){ for(int i = 1;i <= 10;i++) { System.out.println(i); } } }; // my second thread Thread t2 = new Thread(){ public void run(){ for(int i = 11;i <= 20;i++) { System.out.println(i); } } }; public static void main(String[] args){ long ONCE_PER_DAY = 1000*60*60*24; Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.HOUR_OF_DAY, 12); calendar.set(Calendar.MINUTE, 05); calendar.set(Calendar.SECOND, 00); Date time = calendar.getTime(); TimerTask check = new timercheck(); Timer timer = new Timer(); timer.scheduleAtFixedRate(check, time ,ONCE_PER_DAY); } @Override // run method of timer task public void run() { t1.start(); t2.start(); } }

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  • Specific path to java class file when embedded into HTML; Help urgent

    - by Jeevanism
    This is a resonant post to one of my other query due to an error with Java applet embedded into CMS pages. well, I tell issue:- Problem:- I have a website using Concrete 5 CMS, in which I have a page that I have embedded a Java applet class. This applet should show the system information which this applet is working fine in simple single HTML pages. now whenever I access my plugin Test page which created in Concrete 5 CMS (this page I embedded this java applet), it shows a Java error. The error is says incompatible Magic Number. Observation:- After a lot of searching through various tech forums, I finally found that, the issue is happened because the browser cannot load Java class file. The class file path location is wrong. Here below I post the log of server access when I test in my local machine. 127.0.0.1 - - [20/Dec/2012:12:59:28 +0800] "GET /linuxhouse/index.php/techlab/java/testvm.class HTTP/1.1" 200 1896 "-" "Mozilla/4.0 (Linux 2.6.37.6-0.9-desktop) Java/1.6.0_29" 127.0.0.1 - - [20/Dec/2012:12:59:29 +0800] "GET /linuxhouse/index.php/techlab/java/testvm.class HTTP/1.1" 200 1896 "-" "Mozilla/4.0 (Linux 2.6.37.6-0.9-desktop) Java/1.6.0_29" <<<<<<<<<<<<<<<<<<<<< Clearly, the path to Java class file is wrong. But I have no idea how to specify exact path in an embedded code. Is this a CMS specific issue. I have disabled Pretty URL feature of CMS. But still I cannot find the solution. here the referred Page that shows the java error. http://www.linux-house.net/v3/techlab/plugin pls pls give some insight..URGENT SOS

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  • CommunicationException when shutting down JBoss 4.2.2

    - by Brian
    I have deployed an application using JBoss 4.2.2 on a 64-bit RHEL5 server. Since there are other JBoss servers, I had to change some port configurations so that there would be no conflicts when starting the server. So right now I'm using ports-01 from the sample-bindings.xml file that came in the docs/examples/binding-manager/samples directory. In addition, below is a list of all the files I've edited to reflect the new ports: JBOSS_HOME/servers/default/deploy/jboss-web.deployer/server.xml: Changed Connector port - 8080 to 8180 Changed AJP 1.3 Connector port - 8009 to 8109 JBOSS_HOME/server/default/deploy/jbossws.beans/META-INF/jboss-beans.xml Changed 8080 to 8180 JBOSS_HOME/server/default/conf/jboss-service.xml: Changed 8083 to 8183 Changed 1099 to 1299 Changed 1098 to 1298 Changed 4444 to 4644 Changed 4445 to 4645 Changed 4446 to 4646 Changed 4447 to 4647 JBOSS_HOME/server/default/conf/jboss-minimal.xml: Changed 1099 to 1299 Changed 1098 to 1298 When I start the server (binding to localhost) everything is fine and I'm able to access the application. But when I try to shutdown the server I get the following error: Exception in thread "main" javax.naming.CommunicationException: Could not obtain connection to any of these urls: localhost [Root exception is javax.naming.CommunicationException : Failed to connect to server localhost:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused]]] at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1562) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:634) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627) at javax.naming.InitialContext.lookup(InitialContext.java:392) at org.jboss.Shutdown.main(Shutdown.java:214) Caused by: javax.naming.CommunicationException: Failed to connect to server localhost:1099 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused]] at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:274) at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1533) ... 4 more Caused by: javax.naming.ServiceUnavailableException: Failed to connect to server localhost:1099 [Root exception is java.net.ConnectException: Connection refused] at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:248) ... 5 more Caused by: java.net.ConnectException: Connection refused 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.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:525) at java.net.Socket.connect(Socket.java:475) at java.net.Socket.(Socket.java:372) at java.net.Socket.(Socket.java:273) at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:84) at org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:77) at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:244) ... 5 more Is there any other file that I need to change the 1099 to 1299, or am I missing some other step?

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  • Jetty interprets JETTY_ARGS as file name

    - by Lena Schimmel
    I'm running Jetty (version "null 6.1.22") on Ubuntu 10.04. It's running fine until I need JSP support. According to several blog posts I need to set the JETTY_ARGS to OPTIONS=Server,jsp. However, if I put this into /etc/default/jetty: JETTY_ARGS=OPTIONS=Server,jsp and restart Jetty via /etc/init.d/jetty stop && /etc/init.d/jetty start, it reports success, but does not accept connections. I notices that it logs something to /usr/share/jetty/logs/out.log: 2012-09-11 11:19:05.110:WARN::EXCEPTION java.io.FileNotFoundException: /var/cache/jetty/tmp/OPTIONS=Server,jsp (No such file or directory) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(FileInputStream.java:137) at java.io.FileInputStream.<init>(FileInputStream.java:96) at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:87) at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:178) at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:630) at com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(XMLVersionDetector.java:189) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:776) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:741) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1208) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:525) at javax.xml.parsers.SAXParser.parse(SAXParser.java:392) at org.mortbay.xml.XmlParser.parse(XmlParser.java:188) at org.mortbay.xml.XmlParser.parse(XmlParser.java:204) at org.mortbay.xml.XmlConfiguration.<init>(XmlConfiguration.java:109) at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:969) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.mortbay.start.Main.invokeMain(Main.java:194) at org.mortbay.start.Main.start(Main.java:534) at org.mortbay.jetty.start.daemon.Bootstrap.start(Bootstrap.java:30) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:177) That is, whatever I put into JETTY_ARGS, it inteprets is as a filename inside /var/cache/jetty/tmp/ and tries to parse that file as XML (or does it parse some other XML and tries to read that file as a DTD? I'm not sure.). This doesn't seem to make any sense to me, especially since that directory is entirely empty. I've verified this with several other Strings, not only OPTIONS=Server,jsp.

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  • Building Extensions Using E-Business Suite SDK for Java

    - by Sara Woodhull
    We’ve just released Version 2.0.1 of Oracle E-Business Suite SDK for Java.  This new version has several great enhancements added after I wrote about the first version of the SDK in 2010.  In addition to the AppsDataSource and Java Authentication and Authorization Service (JAAS) features that are in the first version, the Oracle E-Business Suite SDK for Java now provides: Session management APIs, so you can share session information with Oracle E-Business Suite Setup script for UNIX/Linux for AppsDataSource and JAAS on Oracle WebLogic Server APIs for Message Dictionary, User Profiles, and NLS Javadoc for the APIs (included with the patch) Enhanced documentation included with Note 974949.1 These features can be used with either Release 11i or Release 12.  References AppsDataSource, Java Authentication and Authorization Service, and Utilities for Oracle E-Business Suite (Note 974949.1) FAQ for Integration of Oracle E-Business Suite and Oracle Application Development Framework (ADF) Applications (Doc ID 1296491.1) What's new in those references? Note 974949.1 is the place to look for the latest information as we come out with new versions of the SDK.  The patch number changes for each release.  Version 2.0.1 is contained in Patch 13882058, which is for both Release 11i and Release 12.  Note 974949.1 includes the following topics: Applying the latest patch Using Oracle E-Business Suite Data Sources Oracle E-Business Suite Implementation of Java Authentication and Authorization Service (JAAS) Utilities Error loggingSession management  Message Dictionary User profiles Navigation to External Applications Java EE Session Management Tutorial For those of you using the SDK with Oracle ADF, besides some Oracle ADF-specific documentation in Note 974949.1, we also updated the ADF Integration FAQ as well. EBS SDK for Java Use Cases The uses of the Oracle E-Business Suite SDK for Java fall into two general scenarios for integrating external applications with Oracle E-Business Suite: Application sharing a session with Oracle E-Business Suite Independent application (not shared session) With an independent application, the external application accesses Oracle E-Business  Suite data and server-side APIs, but it has a completely separate user interface. The external application may also launch pages from the Oracle E-Business Suite home page, but after the initial launch there is no further communication with the Oracle E-Business Suite user interface. Shared session integration means that the external application uses an Oracle E-Business Suite session (ICX session), shares session context information with Oracle E-Business Suite, and accesses Oracle E-Business Suite data. The external application may also launch pages from the Oracle E-Business Suite home page, or regions or pages from the external application may be embedded as regions within Oracle Application Framework pages. Both shared session applications and independent applications use the AppsDataSource feature of the Oracle E-Business Suite SDK for Java. Independent applications may also use the Java Authentication and Authorization (JAAS) and logging features of the SDK. Applications that are sharing the Oracle E-Business Suite session use the session management feature (instead of the JAAS feature), and they may also use the logging, profiles, and Message Dictionary features of the SDK.  The session management APIs allow you to create, retrieve, validate and cancel an Oracle E-Business Suite session (ICX session) from your external application.  Session information and context can travel back and forth between Oracle E-Business Suite and your application, allowing you to share session context information across applications. Note: Generally you would use the Java Authentication and Authorization (JAAS) feature of the SDK or the session management feature, but not both together. Send us your feedback Since the Oracle E-Business Suite SDK for Java is still pretty new, we’d like to know about who is using it and what you are trying to do with it.  We’d like to get this type of information: customer name and brief use case configuration and technologies (Oracle WebLogic Server or OC4J, plain Java, ADF, SOA Suite, and so on) project status (proof of concept, development, production) any other feedback you have about the SDK You can send me your feedback directly at Sara dot Woodhull at Oracle dot com, or you can leave it in the comments below.  Please keep in mind that we cannot answer support questions, so if you are having specific issues, please log a service request with Oracle Support. Happy coding! Related Articles New Whitepaper: Extending E-Business Suite 12.1.3 using Oracle Application Express To Customize or Not to Customize? New Whitepaper: Upgrading your Customizations to Oracle E-Business Suite Release 12 ATG Live Webcast: Upgrading your EBS 11i Customizations to Release 12

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  • ?????Java EE??????????(?2?)????

    - by Masa Sasaki
    WebLogic Server?????????????WebLogic Server???????? 2014?6?24?? ??48?WebLogic Server???@??????????? ?????????Java EE???????????????(?4?)??2???? 5?27?????????1? Java EE&WebLogic Server??? ?Web ?????????????Java??????????????????????????? Java EE????????????????WebLogic Server??????????????????????????? WebLogic Server???????????????????????Java EE???????????????????? JSF(JavaServer Faces)??????????????????????????????????? ?2????????????? (?????? Fusion Middleware?????? ??? ??) ?1? Java EE & Oracle WebLogic Server??????????? ????????·????? ??????????????????????????????? ????????????????????? ??????????????????????????? ???????????????????? ???????????????????????????????? ?????????????????????????????????? ??????????????????????????·??????? ???????????????????? ???????????????????????????? ???????????=????????????????????? ????????·??????????????????????? ??????????????????????????? ??????????????????????????? Oracle WebLogic Server??????Java EE 6?????????????? ???????????????Java EE ??????????????? ?????? Java EE 6???????????? Java EE 6?????JSR-000316 JavaTM Platform, Enterprise Edition 6 (Final Release)? ?????????JSF 2.1(??????????????????????????Web????????·???????)?Servlet3.1(?????·???????????????????????Servlet???Ajax??)? EJB3.1(?????·????????????????????????????????)? JAX-RS(??????????????Web????????)? CDI(????????????????????DI???????????)??? ???????????????? ?2???3???4?????Web????????????????2?JSF (JavaServer Faces), ?3?EJB(Enterprise JavaBeans)?CDI(Context Dependency Injection)? ?4?JPA(Java Persistent API)???????????????????????????????? ?????????????????????????????????????????????????????????? WebLogic Server?? ?2???????????????WebLogic Server????????????? ???WebLogic Server???????????????????????????????????? ??????? ???????·?????????????????? ??48?WebLogic Server???@???????????? 2014?6?24?? ??48?WebLogic Server???@?????????????????????????? ???????????????? ??????Java EE??????????????: ?2?JSF??? JSF (JavaServer Faces)??Web????????????????????????????????Web??????????????????JSF????? ????????????????JSF??????????????????????????????????????????Ajax? ?????????? ?????? ??????????? ?? ?? ?OutOfMemoryError ?????/Heap ?????(MAT)????? Java????????????????????(??OOME)?????????????????????????????????? ???????????????????????????????????Eclipse Memory Analyzer(MAT)???????????? ?????????????????? ???????????? ?? ??? ????????Q&A? ?WebLogic Server?????????????????????? (???)WebLogic Server?????? ?????? WebLogic Server??? WebLogic Server?????????WebLogic Server???? ?! WebLogic Server??????(???????????) WebLogic Server???????? WebLogic Server??????

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  • Convert JSON query parameters to objects with JAX-RS

    - by deamon
    I have a JAX-RS resource, which gets its paramaters as a JSON string like this: http://some.test/aresource?query={"paramA":"value1", "paramB":"value2"} The reason to use JSON here, is that the query object can be quite complex in real use cases. I'd like to convert the JSON string to a Java object, dto in the example: @GET @Produces("text/plain") public String getIt(@QueryParam("query") DataTransferObject dto ) { ... } Does JAX-RS support such a conversion from JSON passed as a query param to Java objects?

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  • Ant error when trying to build file, can't find tools.jar ??

    - by Derek
    When I run ant it says: Unable to locate tools.jar. Expected to find it in C:\Program Files\Java\jre6\lib\tools.jar Buildfile: build.xml does not exist! Build failed What package can I use to download the file required C:\Program Files\Java\jre6\lib\tools.jar I just downloaded this one: jre-6u19-windows-i586-s.exe but unfortunately it appears that it was not on it...

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  • Is alcheMo available?

    - by cable729
    Is it possible to develop iphone apps with java? I'd prefer to use alchemo over xmlvm because of the superior features that it offers. Can I do that? Is anyone else doing that? I've looked all over their site for the download link, but can't find it! Is it available? If so, where? http://www.innaworks.com/alchemo-for-iphone-java-me-j2me-to-iphone-porting/

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  • Trouble installing Rhodes framework

    - by user94154
    When I run rake run:android, I get the error (I'm using Ubuntu): Your java bin folder does not appear to be on your path. This is required to use rhodes. Here is the relevant part of my bash.bashrc file: export PATH="$PATH:$HOME/ruby/gems/bin" export GEM_HOME="$HOME/ruby/gems" export GEM_PATH="$GEM_HOME:/usr/lib/ruby/gems/1.8" export GEM_CACHE="$GEM_HOME/cache" export RUBYOPT=rubygems export ANDROID_HOME="/home/username/ruby_files/android-sdk-linux_86" PATH="$PATH:$ANDROID_HOME/tools" export JAVA_HOME=/usr/lib/jvm/java-6-sun-1.6.0_21 export JAVA_HOME PATH=$PATH:$JAVA_HOME/bin export PATH

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  • Which framework should I choose - Seam, Wicket, JSF or GWT?

    - by karl
    I'm debating whether to use Seam, Wicket, JSF or GWT as the foundation for my presentation layer in a Java project. I narrowed my selection of Java web frameworks down to this subset based on job market considerations, newness of the technology and recommendations from other S.O. users. What factors should I take into consideration in deciding among these?

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  • How can I link two Java serialised objects back together?

    - by Kidburla
    Sometimes (quite a lot, actually) we get a situation in Java where two objects are pointing to the same thing. Now if we serialise these separately it is quite appropriate that the serialised forms have separate copies of the object as it should be possible to open one without the other. However if we now deserialise them both, we find that they are still separated. Is there any way to link them back together? Example follows. public class Example { private static class ContainerClass implements java.io.Serializable { private ReferencedClass obj; public ReferencedClass get() { return obj; } public void set(ReferencedClass obj) { this.obj = obj; } } private static class ReferencedClass implements java.io.Serializable { private int i = 0; public int get() { return i; } public void set(int i) { this.i = i; } } public static void main(String[] args) throws Exception { //Initialise the classes ContainerClass test1 = new ContainerClass(); ContainerClass test2 = new ContainerClass(); ReferencedClass ref = new ReferencedClass(); //Make both container class point to the same reference test1.set(ref); test2.set(ref); //This does what we expect: setting the integer in one (way of accessing the) referenced class sets it in the other one test1.get().set(1234); System.out.println(Integer.toString(test2.get().get())); //Now serialise the container classes java.io.ObjectOutputStream os = new java.io.ObjectOutputStream(new java.io.FileOutputStream("C:\\Users\\Public\\test1.ser")); os.writeObject(test1); os.close(); os = new java.io.ObjectOutputStream(new java.io.FileOutputStream("C:\\Users\\Public\\test2.ser")); os.writeObject(test2); os.close(); //And deserialise them java.io.ObjectInputStream is = new java.io.ObjectInputStream(new java.io.FileInputStream("C:\\Users\\Public\\test1.ser")); ContainerClass test3 = (ContainerClass)is.readObject(); is.close(); is = new java.io.ObjectInputStream(new java.io.FileInputStream("C:\\Users\\Public\\test2.ser")); ContainerClass test4 = (ContainerClass)is.readObject(); is.close(); //We expect the same thing as before, and would expect a result of 4321, but this doesn't happen as the referenced objects are now separate instances test3.get().set(4321); System.out.println(Integer.toString(test4.get().get())); } }

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  • OpenVPN Client timing out

    - by Austin
    I recently installed OpenVPN on my Ubuntu VPS. Whenenver I try to connect to it, I can establish a connection just fine. However, everything I try to connect to times out. If I try to ping something, it will resolve the IP, but will time out after resolving the IP. (So DNS Server seems to be working correctly) My server.conf has this relevant information (At least I think it's relevant. I'm not sure if you need more or not) # Which local IP address should OpenVPN # listen on? (optional) ;local a.b.c.d # Which TCP/UDP port should OpenVPN listen on? # If you want to run multiple OpenVPN instances # on the same machine, use a different port # number for each one. You will need to # open up this port on your firewall. port 1194 # TCP or UDP server? ;proto tcp proto udp # "dev tun" will create a routed IP tunnel, # "dev tap" will create an ethernet tunnel. # Use "dev tap0" if you are ethernet bridging # and have precreated a tap0 virtual interface # and bridged it with your ethernet interface. # If you want to control access policies # over the VPN, you must create firewall # rules for the the TUN/TAP interface. # On non-Windows systems, you can give # an explicit unit number, such as tun0. # On Windows, use "dev-node" for this. # On most systems, the VPN will not function # unless you partially or fully disable # the firewall for the TUN/TAP interface. ;dev tap dev tun # Windows needs the TAP-Win32 adapter name # from the Network Connections panel if you # have more than one. On XP SP2 or higher, # you may need to selectively disable the # Windows firewall for the TAP adapter. # Non-Windows systems usually don't need this. ;dev-node MyTap # SSL/TLS root certificate (ca), certificate # (cert), and private key (key). Each client # and the server must have their own cert and # key file. The server and all clients will # use the same ca file. # # See the "easy-rsa" directory for a series # of scripts for generating RSA certificates # and private keys. Remember to use # a unique Common Name for the server # and each of the client certificates. # # Any X509 key management system can be used. # OpenVPN can also use a PKCS #12 formatted key file # (see "pkcs12" directive in man page). ca ca.crt cert server.crt key server.key # This file should be kept secret # Diffie hellman parameters. # Generate your own with: # openssl dhparam -out dh1024.pem 1024 # Substitute 2048 for 1024 if you are using # 2048 bit keys. dh dh1024.pem # Configure server mode and supply a VPN subnet # for OpenVPN to draw client addresses from. # The server will take 10.8.0.1 for itself, # the rest will be made available to clients. # Each client will be able to reach the server # on 10.8.0.1. Comment this line out if you are # ethernet bridging. See the man page for more info. server 10.8.0.0 255.255.255.0 # Maintain a record of client <-> virtual IP address # associations in this file. If OpenVPN goes down or # is restarted, reconnecting clients can be assigned # the same virtual IP address from the pool that was # previously assigned. ifconfig-pool-persist ipp.txt # Configure server mode for ethernet bridging. # You must first use your OS's bridging capability # to bridge the TAP interface with the ethernet # NIC interface. Then you must manually set the # IP/netmask on the bridge interface, here we # assume 10.8.0.4/255.255.255.0. Finally we # must set aside an IP range in this subnet # (start=10.8.0.50 end=10.8.0.100) to allocate # to connecting clients. Leave this line commented # out unless you are ethernet bridging. ;server-bridge 10.8.0.4 255.255.255.0 10.8.0.50 10.8.0.100 # Configure server mode for ethernet bridging # using a DHCP-proxy, where clients talk # to the OpenVPN server-side DHCP server # to receive their IP address allocation # and DNS server addresses. You must first use # your OS's bridging capability to bridge the TAP # interface with the ethernet NIC interface. # Note: this mode only works on clients (such as # Windows), where the client-side TAP adapter is # bound to a DHCP client. ;server-bridge # Push routes to the client to allow it # to reach other private subnets behind # the server. Remember that these # private subnets will also need # to know to route the OpenVPN client # address pool (10.8.0.0/255.255.255.0) # back to the OpenVPN server. ;push "route 192.168.10.0 255.255.255.0" ;push "route 192.168.20.0 255.255.255.0" # To assign specific IP addresses to specific # clients or if a connecting client has a private # subnet behind it that should also have VPN access, # use the subdirectory "ccd" for client-specific # configuration files (see man page for more info). # EXAMPLE: Suppose the client # having the certificate common name "Thelonious" # also has a small subnet behind his connecting # machine, such as 192.168.40.128/255.255.255.248. # First, uncomment out these lines: ;client-config-dir ccd ;route 192.168.40.128 255.255.255.248 # Then create a file ccd/Thelonious with this line: # iroute 192.168.40.128 255.255.255.248 # This will allow Thelonious' private subnet to # access the VPN. This example will only work # if you are routing, not bridging, i.e. you are # using "dev tun" and "server" directives. # EXAMPLE: Suppose you want to give # Thelonious a fixed VPN IP address of 10.9.0.1. # First uncomment out these lines: ;client-config-dir ccd ;route 10.9.0.0 255.255.255.252 # Then add this line to ccd/Thelonious: # ifconfig-push 10.9.0.1 10.9.0.2 # Suppose that you want to enable different # firewall access policies for different groups # of clients. There are two methods: # (1) Run multiple OpenVPN daemons, one for each # group, and firewall the TUN/TAP interface # for each group/daemon appropriately. # (2) (Advanced) Create a script to dynamically # modify the firewall in response to access # from different clients. See man # page for more info on learn-address script. ;learn-address ./script # If enabled, this directive will configure # all clients to redirect their default # network gateway through the VPN, causing # all IP traffic such as web browsing and # and DNS lookups to go through the VPN # (The OpenVPN server machine may need to NAT # or bridge the TUN/TAP interface to the internet # in order for this to work properly). push "redirect-gateway def1 bypass-dhcp" push "dhcp-option DNS 8.8.8.8" # Certain Windows-specific network settings # can be pushed to clients, such as DNS # or WINS server addresses. CAVEAT: # http://openvpn.net/faq.html#dhcpcaveats # The addresses below refer to the public # DNS servers provided by opendns.com. ;push "dhcp-option DNS 8.8.8.8" push "dhcp-option DNS 8.8.4.4" # Uncomment this directive to allow different # clients to be able to "see" each other. # By default, clients will only see the server. # To force clients to only see the server, you # will also need to appropriately firewall the # server's TUN/TAP interface. ;client-to-client # Uncomment this directive if multiple clients # might connect with the same certificate/key # files or common names. This is recommended # only for testing purposes. For production use, # each client should have its own certificate/key # pair. # # IF YOU HAVE NOT GENERATED INDIVIDUAL # CERTIFICATE/KEY PAIRS FOR EACH CLIENT, # EACH HAVING ITS OWN UNIQUE "COMMON NAME", # UNCOMMENT THIS LINE OUT. ;duplicate-cn # The keepalive directive causes ping-like # messages to be sent back and forth over # the link so that each side knows when # the other side has gone down. # Ping every 10 seconds, assume that remote # peer is down if no ping received during # a 120 second time period. keepalive 10 120 # For extra security beyond that provided # by SSL/TLS, create an "HMAC firewall" # to help block DoS attacks and UDP port flooding. # # Generate with: # openvpn --genkey --secret ta.key # # The server and each client must have # a copy of this key. # The second parameter should be '0' # on the server and '1' on the clients. ;tls-auth ta.key 0 # This file is secret # Select a cryptographic cipher. # This config item must be copied to # the client config file as well. ;cipher BF-CBC # Blowfish (default) ;cipher AES-128-CBC # AES ;cipher DES-EDE3-CBC # Triple-DES # Enable compression on the VPN link. # If you enable it here, you must also # enable it in the client config file. comp-lzo # The maximum number of concurrently connected # clients we want to allow. ;max-clients 100 # It's a good idea to reduce the OpenVPN # daemon's privileges after initialization. # # You can uncomment this out on # non-Windows systems. ;user nobody ;group nogroup # The persist options will try to avoid # accessing certain resources on restart # that may no longer be accessible because # of the privilege downgrade. persist-key persist-tun # Output a short status file showing # current connections, truncated # and rewritten every minute. status openvpn-status.log # By default, log messages will go to the syslog (or # on Windows, if running as a service, they will go to # the "\Program Files\OpenVPN\log" directory). # Use log or log-append to override this default. # "log" will truncate the log file on OpenVPN startup, # while "log-append" will append to it. Use one # or the other (but not both). ;log openvpn.log ;log-append openvpn.log # Set the appropriate level of log # file verbosity. # # 0 is silent, except for fatal errors # 4 is reasonable for general usage # 5 and 6 can help to debug connection problems # 9 is extremely verbose verb 3 # Silence repeating messages. At most 20 # sequential messages of the same message # category will be output to the log. ;mute 20 I've tried on multiple computers by the way. The same result on all of them. What could be wrong? Thanks in advance, and if you need other information I'll gladly post it. Information for new comments root@vps:~# iptables -L -n -v Chain INPUT (policy ACCEPT 862K packets, 51M bytes) pkts bytes target prot opt in out source destination Chain FORWARD (policy ACCEPT 3 packets, 382 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 4641 298K ACCEPT all -- * * 10.8.0.0/24 0.0.0.0/0 0 0 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT 1671K packets, 2378M bytes) pkts bytes target prot opt in out source destination And root@vps:~# iptables -t nat -L -n -v Chain PREROUTING (policy ACCEPT 17937 packets, 2013K bytes) pkts bytes target prot opt in out source destination Chain POSTROUTING (policy ACCEPT 8975 packets, 562K bytes) pkts bytes target prot opt in out source destination 1579 103K SNAT all -- * * 10.8.0.0/24 0.0.0.0/0 to:SERVERIP Chain OUTPUT (policy ACCEPT 8972 packets, 562K bytes) pkts bytes target prot opt in out source destination

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  • Java applet class never found

    - by Andrew
    I am having a problem with the java plugins of all three major browsers: chromium, firefox and Internet Explorer. The issue is that applets will always fail to load and yield errors no matter what website or what applet I am trying to use. I can not see any of the example applets on oracle's website; I can not launch the minecraft browser applet; nor can I launch any applet across the web using any browser. I always receive a "class not found:AppletClassHere.class" error. I know that my browser plugin must be working correctly because I can launch the Cisco Nac applet each time I connect to my network and I can launch my own simple applets offline. I am connecting to the internet through a vpn in case that is important. It also seems like a lot of other people I know are having this issue. Re-installing the plugin does not appear to fix the issue. I am asking this question to find out the cause of this problem, and any possible solutions. Thank you.

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  • KVM and JBoss Java Application Server

    - by Jason
    We have a large Xen deployment running on both RHEL and CentOS and have recently started looking at KVM since this is where it looks like the future of VM's are on Linux. We can load the server and get everything running without an issue. However when we load up a new one with JBoss (4.2 Community edition, Sun JDK 6) and load a large EAR the server goes a little crazy. The %sy will jump to 80-99% and just hang for large periods of time we see a similar jump in %us on the host machine. We though at first this might be I/O as it seems to happen at start of JBoss but then would "cool down" after everything got loaded. We did some tests by extracting some large tar.gz files and using jar -xvf on the ear but could not re-create. Then we starting thinking this might be some type of memory access issues. We loaded a c-program that would generate a lot of memory activity and sure enough we saw the spikes again. Not as high mind you but we did see it jump. We then wrote a small java program to do the same thing and sure enough we saw it jump again. Any thoughts on what might be causing this? Is this just the way KVM works? As a side note we do NOT see this behavior on any other setup. Xen, VMWare and/or native iron. The system does seem a bit slower than our Xen / VMware ones.

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  • Installing Java 6 on Ubuntu 10.04 fails on missing Java 6 JRE package

    - by David S
    I'm trying to install Java 6 on Ubuntu 10.04 and it's been harder than it should be. In another question about installing Java on Ubuntu/Linux it said that I needed to do the following: sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner" However, that failed and I kept getting: sudo: add-apt-repository: command not found The solution to this, was to run: sudo apt-get install python-software-properties So, that seemed to work and the command above to "add-apt-repository" seems to complete with no errors. And I have run the following to confirm it got added. sudo vi /etc/apt/sources.list But, now when I run the following: sudo apt-get install sun-java6-jre I get: Reading package lists... Done Building dependency tree Reading state information... Done Package sun-java6-jre is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package sun-java6-jre has no installation candidate Where do I go from here?

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  • Java process eating CPU; Why?

    - by Camran
    I have a Linux server which I have installed Java on. Sometimes, and only sometimes when a large nr of visitors visit my website, the site hangs. When I open the terminal and enter the "top" command to see whats going on, I can see that "Java" process is eating CPU! Like 400%. I have also tried ps aux command, and can see that the command is from usr/bin/java I have little experience in troubleshooting this kind of things, so I turn to you guys for help. I have a java container installed (Jetty) which I must have in order to use SOLR (search engine) which is integrated into my website. I can start and stop SOLR by: etc/init.d/solr stop But this didn't remove the java process from the "Top" command. Still java was eating 400% CPU. Is there other methods to restart java only? This has happened twice to me, and each time I have now restarted my entire servers and everithing is fine. If you need more input let me know! Thanks

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  • Adding java source (.java files) to test jar in Maven

    - by user320550
    Hi all, I'm making use of my pom.xml and am was able to generate the jar for src/main/java (say app.jar) as well as for src/test/java (say app-test.jar). I was also able to include my java sources as part of the app.jar (i.e. have both my .class as well as my .java files in the jar). However for my app-test.jar, i'm not able to include my .java files in it. This is my pom.xml: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.mycompany.app</groupId> <artifactId>my-app</artifactId> <version>1.0-SNAPSHOT</version> <packaging>jar</packaging> <name>my-app</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> </dependencies> <build> <resources> <resource> <directory>src/main/java</directory> </resource> </resources> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.3.1</version> <executions> <execution> <phase>package</phase> <goals> <goal>test-jar</goal> </goals> <configuration> <includes> <include>src/test/java</include> </includes> </configuration> </execution> </executions> </plugin> </plugins> </build> </project> Any help would be appreciated. Thanks. Update on post on Whaley's suggestion: Tried the maven-antrun-plugin, but rt now after running mvn package all i'm getting inside my tests.jar is the META-INF folder. .java and .class are not getting included: This is the part of the pom.xml <build> <resources> <resource> <directory>src/main/java</directory> </resource> </resources> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <executions> <execution> <phase>package</phase> <goals> <goal>test-jar</goal> </goals> <configuration> <includes> <include>src/test/java</include> </includes> </configuration> </execution> </executions> </plugin> <plugin> <artifactId>maven-antrun-plugin</artifactId> <executions> <execution> <id>${project.artifactId}-include-sources</id> <phase>process-resources</phase> <goals> <goal>run</goal> </goals> <configuration> <tasks> <copy todir="${project.build.testOutputDirectory}"> <fileset dir="${project.build.testSourceDirectory}"/> </copy> </tasks> </configuration> </execution> </executions> </plugin> </plugins> </build> Thanks.

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  • Java CORBA Client Disconnects Immediately

    - by Benny
    I have built a Java CORBA application that subscribes to an event server. The application narrows and logs on just fine, but as soon as an event is sent to the client, it breaks with the error below. Please advise. 2010/04/25!13.00.00!E00555!enserver!EventServiceIF_i.cpp!655!PID(7390)!enserver - e._info=system exception, ID 'IDL:omg.org/CORBA/TRANSIENT:1.0' TAO exception, minor code = 54410093 (invocation connect failed; ECONNRESET), completed = NO EDIT: Please note, this only happens when running on some machines. It works on some, but not others. Even on the same platform (I've tried Windows XP/7 and CentOS linux) Some work, some don't... Here is the WireShark output...looks like the working PC is much more interactive with the network compared to the non-working PC. Working PC No. Time Source Destination Protocol Info 62 28.837255 10.10.10.209 10.10.10.250 TCP 50169 > 23120 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=8 63 28.907068 fe80::5de0:8d21:937e:c649 ff02::1:3 LLMNR Standard query A isatap 64 28.907166 10.10.10.209 224.0.0.252 LLMNR Standard query A isatap 65 29.107259 10.10.10.209 10.255.255.255 NBNS Name query NB ISATAP<00> 66 29.227000 10.10.10.250 10.10.10.209 TCP 23120 > 50169 [SYN, ACK] Seq=0 Ack=1 Win=32768 Len=0 MSS=1260 WS=0 67 29.227032 10.10.10.209 10.10.10.250 TCP 50169 > 23120 [ACK] Seq=1 Ack=1 Win=66560 Len=0 68 29.238063 10.10.10.209 10.10.10.250 GIOP GIOP 1.1 Request s=326 id=5 (two-way): op=logon 69 29.291765 10.10.10.250 10.10.10.209 GIOP GIOP 1.1 Reply s=420 id=5: No Exception 70 29.301395 10.10.10.209 10.10.10.250 GIOP GIOP 1.1 Request s=369 id=6 (two-way): op=registerEventStat 71 29.348275 10.10.10.250 10.10.10.209 GIOP GIOP 1.1 Reply s=60 id=6: No Exception 72 29.405250 10.10.10.209 10.10.10.250 TCP 50170 > telnet [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=8 73 29.446055 10.10.10.250 10.10.10.209 TCP telnet > 50170 [SYN, ACK] Seq=0 Ack=1 Win=32768 Len=0 MSS=1260 WS=0 74 29.446128 10.10.10.209 10.10.10.250 TCP 50170 > telnet [ACK] Seq=1 Ack=1 Win=66560 Len=0 75 29.452021 10.10.10.209 10.10.10.250 TELNET Telnet Data ... 76 29.483537 10.10.10.250 10.10.10.209 TELNET Telnet Data ... 77 29.483651 10.10.10.209 10.10.10.250 TELNET Telnet Data ... 78 29.523463 10.10.10.250 10.10.10.209 TCP telnet > 50170 [ACK] Seq=4 Ack=5 Win=32768 Len=0 79 29.554954 10.10.10.209 10.10.10.250 TCP 50169 > 23120 [ACK] Seq=720 Ack=505 Win=66048 Len=0 Non-working PC No. Time Source Destination Protocol Info 1 0.000000 10.10.10.209 10.10.10.250 TCP 64161 > 23120 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=8 2 2.999847 10.10.10.209 10.10.10.250 TCP 64161 > 23120 [SYN] Seq=0 Win=8192 Len=0 MSS=1260 WS=8 3 4.540773 Cisco_3c:78:00 Cisco-Li_55:87:72 ARP Who has 10.0.0.1? Tell 10.10.10.209 4 4.540843 Cisco-Li_55:87:72 Cisco_3c:78:00 ARP 10.0.0.1 is at 00:1a:70:55:87:72 5 8.992284 10.10.10.209 10.10.10.250 TCP 64161 > 23120 [SYN] Seq=0 Win=8192 Len=0 MSS=1260

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  • non blocking client server chat application in java using nio

    - by Amith
    I built a simple chat application using nio channels. I am very much new to networking as well as threads. This application is for communicating with server (Server / Client chat application). My problem is that multiple clients are not supported by the server. How do I solve this problem? What's the bug in my code? public class Clientcore extends Thread { SelectionKey selkey=null; Selector sckt_manager=null; public void coreClient() { System.out.println("please enter the text"); BufferedReader stdin=new BufferedReader(new InputStreamReader(System.in)); SocketChannel sc = null; try { sc = SocketChannel.open(); sc.configureBlocking(false); sc.connect(new InetSocketAddress(8888)); int i=0; while (!sc.finishConnect()) { } for(int ii=0;ii>-22;ii++) { System.out.println("Enter the text"); String HELLO_REQUEST =stdin.readLine().toString(); if(HELLO_REQUEST.equalsIgnoreCase("end")) { break; } System.out.println("Sending a request to HelloServer"); ByteBuffer buffer = ByteBuffer.wrap(HELLO_REQUEST.getBytes()); sc.write(buffer); } } catch (IOException e) { e.printStackTrace(); } finally { if (sc != null) { try { sc.close(); } catch (Exception e) { e.printStackTrace(); } } } } public void run() { try { coreClient(); } catch(Exception ej) { ej.printStackTrace(); }}} public class ServerCore extends Thread { SelectionKey selkey=null; Selector sckt_manager=null; public void run() { try { coreServer(); } catch(Exception ej) { ej.printStackTrace(); } } private void coreServer() { try { ServerSocketChannel ssc = ServerSocketChannel.open(); try { ssc.socket().bind(new InetSocketAddress(8888)); while (true) { sckt_manager=SelectorProvider.provider().openSelector(); ssc.configureBlocking(false); SocketChannel sc = ssc.accept(); register_server(ssc,SelectionKey.OP_ACCEPT); if (sc == null) { } else { System.out.println("Received an incoming connection from " + sc.socket().getRemoteSocketAddress()); printRequest(sc); System.err.println("testing 1"); String HELLO_REPLY = "Sample Display"; ByteBuffer buffer = ByteBuffer.wrap(HELLO_REPLY.getBytes()); System.err.println("testing 2"); sc.write(buffer); System.err.println("testing 3"); sc.close(); }}} catch (IOException e) { e.printStackTrace(); } finally { if (ssc != null) { try { ssc.close(); } catch (IOException e) { e.printStackTrace(); } } } } catch(Exception E) { System.out.println("Ex in servCORE "+E); } } private static void printRequest(SocketChannel sc) throws IOException { ReadableByteChannel rbc = Channels.newChannel(sc.socket().getInputStream()); WritableByteChannel wbc = Channels.newChannel(System.out); ByteBuffer b = ByteBuffer.allocate(1024); // read 1024 bytes while (rbc.read(b) != -1) { b.flip(); while (b.hasRemaining()) { wbc.write(b); System.out.println(); } b.clear(); } } public void register_server(ServerSocketChannel ssc,int selectionkey_ops)throws Exception { ssc.register(sckt_manager,selectionkey_ops); }} public class HelloClient { public void coreClientChat() { Clientcore t=new Clientcore(); new Thread(t).start(); } public static void main(String[] args)throws Exception { HelloClient cl= new HelloClient(); cl.coreClientChat(); }} public class HelloServer { public void coreServerChat() { ServerCore t=new ServerCore(); new Thread(t).start(); } public static void main(String[] args) { HelloServer st= new HelloServer(); st.coreServerChat(); }}

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