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  • Apache Bench length failures

    - by Laurens
    I am running Apache Bench against a Ruby on Rails XML-RPC web service that is running on Passenger via mod_passenger. All is fine when I run 1000 requests without concurrency. Bench indicates that all requests successfully complete with no failures. When I run Bench again with a concurrency level of 2, however, requests start to fail due to content length. I am seeing failures rates of 70-80% when using concurrency. This should not happen. The requests I am sending to the web service should always results in the same response. I have used cURL to verify that this is in fact the case. My Rails log is not showing any errors as well so I am curious to see what content Bench actually received and interpreted as a failure. Is there any way to print these failures?

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  • Uninstall file from Apache Tomcat Web Server

    - by sttaq
    I have a website deployed on an apache web server. I am using a windows installer to deploy and un-deploy this website from the server. During the uninstall I am just removing the .war from the webapp directory of the tomcat. Now when I do this the tomcat automatically removes all the folders created when it unpacked the war file. But it takes some time to remove those folders. I want to know if there is a way to force tomcat to remove the folder immediately by communicating to it with some external tool eg a script, xml-rpc etc?

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  • Can't run my servlet from tomcat server even though the classes are in package

    - by Mido
    Hi there, i am trying to get my servlet to run, i have been searching for 2 days and trying every possible solution and no luck. The servet class is in the appropriate folder (i.e under the package name). I also added the jar files needed in my servlet into lib folder. the web.xml file maps the url and defines the servlet. So i did everything in the documentation and wt people said in here and still getting this error : type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Error instantiating servlet class assign1a.RPCServlet org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379) org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:282) org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:357) org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1687) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) java.lang.Thread.run(Thread.java:619) root cause java.lang.NoClassDefFoundError: assign1a/RPCServlet (wrong name: server/RPCServlet) java.lang.ClassLoader.defineClass1(Native Method) java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) java.lang.ClassLoader.defineClass(ClassLoader.java:616) java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2820) org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1143) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1638) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379) org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:282) org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:357) org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1687) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) java.lang.Thread.run(Thread.java:619) note The full stack trace of the root cause is available in the Apache Tomcat/7.0.5 logs. Also here is my servlet code : package assign1a; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import lib.jsonrpc.RPCService; public class RPCServlet extends HttpServlet { /** * */ private static final long serialVersionUID = -5274024331393844879L; private static final Logger log = Logger.getLogger(RPCServlet.class.getName()); protected RPCService service = new ServiceImpl(); public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { response.setContentType("text/html"); response.getWriter().write("rpc service " + service.getServiceName() + " is running..."); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { try { service.dispatch(request, response); } catch (Throwable t) { log.log(Level.WARNING, t.getMessage(), t); } } } Please help me :) Thanks. EDIT: here are the contents of my web.xml file <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0" metadata-complete="true"> <servlet> <servlet-name>jsonrpc</servlet-name> <servlet-class>assign1a.RPCServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>jsonrpc</servlet-name> <url-pattern>/rpc</url-pattern> </servlet-mapping> </web-app>

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  • wave.getState() returns null

    - by RMorrisey
    When trying to call wave.getState() in my Google Wave gadget, I get back null (no state object). How can I initialize the Wave state object? I am working in the Wave Sandbox. My ModulePrefs contains the following: <Require feature="wave" /> <Require feature="rpc"/> I got the "rpc" feature from some google groups post when searching for a fix, but it doesn't seem to be any help. The gadget contains a jQuery plugin, which defines the classes I use (not shown), attaches an event handler to the link that shows up in edit mode, and sets up the callback methods with the google wave gadget initializer: $.fn.extend({ $.gork.InitPass.newButtonClick = function newButtonClick() { var jer = new $.gork.InitPass.Player('Jeremias', 12, 2); var delta = {}; delta[jer.name] = jer.serialize(); wave.getState().submitDelta(delta); }; $.gork.InitPass.modeCallback = function modeCallback() { var state = wave.getState(); var mode = wave.getMode(); $.gork.InitPass.getContainer().ipCombatState(state, (mode == wave.Mode.EDIT)); }; $.gork.InitPass.stateCallback = function stateCallback() { $.gork.InitPass.getContainer().ipCombatState( wave.getState(), (wave.getMode() == wave.Mode.EDIT)); alert('state'); }; $.gork.InitPass.init = function init() { if (wave && wave.isInWaveContainer()) { var mode = wave.getMode(); $('.gork-ip-container').ipCombatState(null, (mode == wave.Mode.EDIT)); wave.setModeCallback($.gork.InitPass.modeCallback); wave.setStateCallback($.gork.InitPass.stateCallback); } }; })(jQuery); gadgets.util.registerOnLoadHandler($.gork.InitPass.init); $(function ready() { $.gork.InitPass.getContainer().find('.gork-ip-edit .addSection a.newButton').click( $.gork.InitPass.newButtonClick); }); So there are two main pieces of functionality here: When the mode changes, ipCombatState(...) is called. This changes the visual appearance of the gadget when the user puts the gadget in Edit mode (CTRL+E), by hiding the view DIV and displaying the edit DIV. The newButtonClick callback (which is attached to the link "a.newButton" in the edit container) is supposed to add Jeremias (Nate's Shadowrun character) to the gadget state, so that he'll be appear as a table row in edit mode. I have verified that the initializer method is called, and the view/edit mode switch works just fine (except the state is null). When I click on the new button link (the link at the bottom in edit mode), and trigger the newButtonClick handler, I get an error because wave.getState() also returns null. How can I initialize the wave state so that I can work with it? The purpose of my gadget will be to keep track of combat initiative order in a Shadowrun tabletop game (4th Ed). You can test it out in Wave and see what I have so far: http://gorkwobble.herobo.com/wave/init-pass.xml The actual javascript code is externalized to: http://gorkwobble.herobo.com/wave/init-pass.js P.S. If any Shadowrun players read this, and want to hear about it when I get the gadget working, leave a comment and I'll wave you.

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  • Flex/PHP/XML data issue

    - by reado
    I have built a simple application in Flex. When the application loads, a GET request is made to the xmlService.php file with parameters "fetchData=letters". This tells the PHP to return the XML code. In Flex Debug I can see the XML data being sent by the PHP to the flex client. What I need it to do is populate the first drop down box (id="letter") with this data, however nothing is being received by Flex. I added an Alert.show() to check what was being returned but when the application runs, the alert is blank. Can anyone help? Thanks in advance. Image: http://static.readescdn.com/misc/flex.gif // Flex <?xml version="1.0" encoding="utf-8"?> <s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" width="300" height="300" creationComplete="windowedapplication1_creationCompleteHandler(event)"> <fx:Script> <![CDATA[ import mx.collections.ArrayCollection; import mx.controls.Alert; import mx.events.FlexEvent; import mx.rpc.events.FaultEvent; import mx.rpc.events.ResultEvent; import spark.events.IndexChangeEvent; protected function windowedapplication1_creationCompleteHandler(event:FlexEvent):void { var params:Object = {'fetchData':'letters'}; xmlService.send(params); } protected function xmlService_resultHandler(event:ResultEvent):void { var id:String = xmlService.lastResult.data.id.value; //Alert.show(xmlService.lastResult.data.id.value); if(id == 'letter') { letter.dataProvider = xmlService.lastResult.data.letter; letter.enabled = true; } else if(id == 'number') { number.dataProvider = xmlService.lastResult.data.number; number.enabled = true; submit.enabled = true; } else { submit.label = 'No Data!'; } } protected function xmlService_faultHandler(event:FaultEvent):void { Alert.show(event.fault.message); } protected function letter_changeHandler(event:IndexChangeEvent):void { var params:Object = {'fetchData':'numbers'}; xmlService.send(params); } ]]> </fx:Script> <fx:Declarations> <s:HTTPService id="xmlService" url="URL_GOES_HERE" method="POST" useProxy="false" resultFormat="e4x" result="xmlService_resultHandler(event)" fault="xmlService_faultHandler(event)"/> </fx:Declarations> <s:DropDownList x="94" y="10" id="letter" enabled="false" change="letter_changeHandler(event)" labelField="value"></s:DropDownList> <s:DropDownList x="94" y="39" id="number" enabled="false" labelField="value"></s:DropDownList> <s:Button x="115" y="68" label="Submit" id="submit" enabled="false"/> </s:WindowedApplication> // PHP <? if(isset($_POST['fetchData'])) { if($_POST['fetchData'] == 'letters') { $xml = '<data> <id value="letters"/> <letter label="Letter A" value="a"/> <letter label="Letter B" value="b"/> <letter label="Letter C" value="c"/> </data>'; } else if($_POST['fetchData'] == 'numbers') { $xml = '<data> <id value="letters"/> <number label="Number 1" value="1"/> <number label="Number 2" value="2"/> <number label="Number 3" value="3"/> </data>'; } else { $xml = '<data> <result value="'.$_POST['fetchData'].'"/> </data>'; } echo $xml; } else { echo '<data> <result value="NULL"/> </data>'; } ?>

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  • What is "read operations inside transactions can't allow failover" ?

    - by Kenyth
    From time to time I got the following exception message on GAE for my GAE/J app. I searched with Google, no relevant results were found. Does anyone know about this? Thanks in advance for any response! The exception message is as below: Nested in org.springframework.orm.jpa.JpaSystemException: Illegal argument; nested exception is javax.persistence.PersistenceException: Illegal argument: java.lang.IllegalArgumentException: read operations inside transactions can't allow failover at com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java: 34) at com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java: 67) at com.google.appengine.api.datastore.DatastoreServiceImpl $1.run(DatastoreServiceImpl.java:128) at com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java: 30) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 111) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 84) at com.google.appengine.api.datastore.DatastoreServiceImpl.get(DatastoreServiceImpl.java: 77) at org.datanucleus.store.appengine.RuntimeExceptionWrappingDatastoreService.get(RuntimeExceptionWrappingDatastoreService.java: 53) at org.datanucleus.store.appengine.DatastorePersistenceHandler.get(DatastorePersistenceHandler.java: 94) at org.datanucleus.store.appengine.DatastorePersistenceHandler.get(DatastorePersistenceHandler.java: 106) at org.datanucleus.store.appengine.DatastorePersistenceHandler.fetchObject(DatastorePersistenceHandler.java: 464) at org.datanucleus.state.JDOStateManagerImpl.loadUnloadedFieldsInFetchPlan(JDOStateManagerImpl.java: 1627) at org.datanucleus.state.JDOStateManagerImpl.loadFieldsInFetchPlan(JDOStateManagerImpl.java: 1603) at org.datanucleus.ObjectManagerImpl.performDetachAllOnCommitPreparation(ObjectManagerImpl.java: 3192) at org.datanucleus.ObjectManagerImpl.preCommit(ObjectManagerImpl.java: 2931) at org.datanucleus.TransactionImpl.internalPreCommit(TransactionImpl.java: 369) at org.datanucleus.TransactionImpl.commit(TransactionImpl.java:256) at org.datanucleus.jpa.EntityTransactionImpl.commit(EntityTransactionImpl.java: 104) at org.datanucleus.store.appengine.jpa.DatastoreEntityTransactionImpl.commit(DatastoreEntityTransactionImpl.java: 55) at name.kenyth.playtweets.service.Tx.run(Tx.java:39) at name.kenyth.playtweets.web.controller.TwitterApiController.persistStatus(TwitterApiController.java: 309) at name.kenyth.playtweets.web.controller.TwitterApiController.processStatusesForWebCall(TwitterApiController.java: 271) at name.kenyth.playtweets.web.controller.TwitterApiController.getHomeTimelineUpdates_aroundBody0(TwitterApiController.java: 247) at name.kenyth.playtweets.web.controller.TwitterApiController $AjcClosure1.run(TwitterApiController.java:1) at name.kenyth.playtweets.web.refine.AuthenticationEnforcement.ajc $around$name_kenyth_playtweets_web_refine_AuthenticationEnforcement $2$439820b7proceed(AuthenticationEnforcement.aj:1) at name.kenyth.playtweets.web.refine.AuthenticationEnforcement.ajc $around$name_kenyth_playtweets_web_refine_AuthenticationEnforcement $2$439820b7(AuthenticationEnforcement.aj:168) at name.kenyth.playtweets.web.controller.TwitterApiController.getHomeTimelineUpdates(TwitterApiController.java: 129) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Method.java:43) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java: 710) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java: 167) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java: 414) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java: 402) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java: 771) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java: 716) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java: 647) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java: 552) at javax.servlet.http.HttpServlet.service(HttpServlet.java:693) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: 511) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 390) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 418) at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327) at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126) at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java: 195) at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java: 159) at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java: 141) at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java: 90) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java: 417) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java: 71) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java: 76) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java: 88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java: 76) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java: 97) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java: 35) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: 43) at org.mortbay.jetty.servlet.ServletHandler $CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: 388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: 216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: 182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: 765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: 418) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java: 238) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: 152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: 542) at org.mortbay.jetty.HttpConnection $RequestHandler.headerComplete(HttpConnection.java:923) at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java: 76) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java: 135) at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java: 250) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5838) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5836) at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java: 24) at com.google.net.rpc.impl.RpcUtil.runRpcInApplication

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  • [Flex 4 and .Net] Retrieving tables from SQL database

    - by mG
    Hi everyone, As the title says, I want to retrieve tables of data from a SQL database, using Flex 4 and .Net WebService. I'm new to both Flex and DotNet. Please tell me a proper way to do it. This is what I've done so far: Retrieving an array of string: (this works) .Net: [WebMethod] public String[] getTestArray() { String[] arStr = { "AAA", "BBB", "CCC", "DDD" }; return arStr; } Flex 4: <?xml version="1.0" encoding="utf-8"?> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"> <fx:Script> <![CDATA[ import mx.collections.ArrayCollection; import mx.controls.Alert; import mx.rpc.events.ResultEvent; [Bindable] private var ac:ArrayCollection = new ArrayCollection(); protected function btn_clickHandler(event:MouseEvent):void { ws.getTestArray(); } protected function ws_resultHandler(event:ResultEvent):void { ac = event.result as ArrayCollection; Alert.show(ac.toString()); } ]]> </fx:Script> <fx:Declarations> <s:WebService id="ws" wsdl="http://localhost:50582/Service1.asmx?WSDL" result="ws_resultHandler(event)"/> </fx:Declarations> <s:Button x="10" y="30" label="Button" id="btn" click="btn_clickHandler(event)"/> </s:Application> Retrieving a DataTable: (this does not work) DotNet: [WebMethod] public DataTable getUsers() { DataTable dt = new DataTable("Users"); SqlConnection conn = new SqlConnection("server = 192.168.1.50; database = MyDatabase; user id = sa; password = 1234; integrated security = false"); SqlDataAdapter da = new SqlDataAdapter("select vFName, vLName, vEmail from Users", conn); da.Fill(dt); return dt; } Flex 4: <?xml version="1.0" encoding="utf-8"?> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"> <fx:Script> <![CDATA[ import mx.collections.ArrayCollection; import mx.controls.Alert; import mx.rpc.events.ResultEvent; [Bindable] private var ac:ArrayCollection = new ArrayCollection(); protected function btn_clickHandler(event:MouseEvent):void { ws.getUsers(); } protected function ws_resultHandler(event:ResultEvent):void { ac = event.result as ArrayCollection; Alert.show(ac.toString()); } ]]> </fx:Script> <fx:Declarations> <s:WebService id="ws" wsdl="http://localhost:50582/Service1.asmx?WSDL" result="ws_resultHandler(event)"/> </fx:Declarations> <s:Button x="10" y="30" label="Button" id="btn" click="btn_clickHandler(event)"/> </s:Application>

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  • Web Service to connect to an API and get the response back from the API

    - by Scarlette_June
    This is a general Programming question I'm new to Java Web services programming using Apache Axis and JAX-RPC. We need to build 2 components,a App engine (Shopping cart, Payment Gateway integration etc..) and a UI Control Panel over an existing API. The API understands only XML.How we must communicate with the API? link text We have been asked to write a Web Service to establish the communication. Please provide the steps and a Code example/snippet on how to connect to an existing API through a Webservice and get the response back from the API to the calling Webservice. John,I hope I have been able to explain my query.If you have ideas on how to communicate with the API to get the desired result to the user,Please let us know. We have just started our careers in technology a year back post our graduation and this project is our very first Java EE project.

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  • Jmeter Exception response code :000 ,response message:Read timed out,for Java Web service?

    - by vipin k.
    I am testing a java web service(jax-ws),but whenever i am running the test i am getting response code as response message:Read timed out . And at tomcat serevr side i am getting exception : SEVERE: caught throwable ClientAbortException: java.net.SocketException: Connection reset by peer: socket write error at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:358) at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:354) at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:381) at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:370) at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89) I found out that Read timed out exception may occur because of big size of SOAP response. But i am clue less because same web service i can access form an application.

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  • NetBeans Web-Services Client Project - repeated WSDL parsing

    - by RedGrittyBrick
    I created a new project thus ... File, New Project... Java, Java Application. Right-click project icon in "Projects" tree-view panel. Choose New, Web Service Client... Specify WSDL file e.g. ( ) Project (*) Local file D:\temp\Foo\Bar.wsdl ( ) WSDL URL [Set Proxy...] client-style JAX-WS [ ] Generate Dispatch code It parsed the WSDL and generated lots of java files. I created a main class and used Netbeans to insert a WS client call Now whenever I run my code (Desktop app), it again parses the WSDL (which doesn't ever change) and regenerates about 78 java files and compiles them. How do I stop Netbeans performing this uneccessary and time-consuming action?

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  • How to efficiently manage files on a filesystem in Java?

    - by Tuukka Mustonen
    I am creating a few JAX-WS endpoints, for which I want to save the received and sent messages for later inspection. To do this, I am planning to save the messages (XML files) into filesystem, in some sensible hierarchy. There will be hundreds, even thousands of files per day. I also need to store metadata for each file. I am considering to put the metadata (just a couple of fields) into database table, but the XML file content itself into files in a filesystem in order not to bloat the database with content data (that is seldomly read). Is there some simple library that helps me in saving, loading, deleting etc. the files? It's not that tricky to implement it myself, but I wonder if there are existing solutions? Just a simple library that already provides easy access to filesystem (preferrably over different operating systems). Or do I even need that, should I just go with raw/custom Java?

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  • How to get generate WSDL using GroovyWS

    - by James Black
    I am implementing SOAP web services for a commercial application, and I am using GroovyWS to speed up the development. But, when I deploy it on Tomcat, I am not using Grails, as the software has it's own J2EE framework, so how I do I get it to react to wsdl requests? Do I need to write a groovy-based servlet? Ideally I would like the WSDL generated upon request, so I can easily change the interface and see the change. It seems I will miss the annotations that JAX-WS provides for, though, to help fine-tune the WSDL.

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  • jaxb entity print out as xml

    - by Cristian Boariu
    Hi, I have a class, let's say User adnotated with @XmlRootElement, with some properties (name, surname etc). I use this class for REST operations, as application/xml. The client will POST User class so i want to keep the values in the log. Is there any method in jax-ws to prints out this object as xml? For instance: log.info("Customers sent a USER"+user.whichMethod()); Customer sent a User <user> <name>cristi</name> <surname>kevin</surname> </user> Thanks.

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  • GWT and a jaxb objects

    - by arinte
    I am trying to use GWT to build objects on the client side that would be sent to a web service elsewhere. These objects are generate through JAX-WS which I am pretty sure uses jaxb to build objects from the xsds that are in the wsdl. Anyhow, GWT was supposed to be able to support this by ignoring annotations or whatever, but it isn't working for me. Here is one of the errors that I am getting: Line 4: The import javax.xml.bind cannot be resolve I am using GWT 2 and the Google plugin for Eclipse.

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  • Preventing Netbeans JAXB generation trashing classes

    - by Mac
    I'm developing a SOAP service using JAX-WS and JAXB under Netbeans 6.8, and getting a little frustrated with Netbeans trashing my work every time the XSD schema my JAXB bindings are based upon changes. To elaborate, the IDE automatically generates classes bound to the schema, which can then be (un)marshalled from/to XML using JAXB. To these classes I've added extra methods to (for example) convert to and from separate classes designed to be persisted to database with JPA. The problem is that whenever the schema changes and I rebuild, these classes are regenerated, and all my custom methods are deleted. I can manually replace them by copy-pasting from a backup file, but that is rather time-consuming and tedious. As I'm using an iterative design approach, the schema is changing rather frequently and I'm wasting an awful lot of time whenever it does, simply to reinstate my previous code. While the IDE automatically regenerating the JAXB-bound classes is entirely reasonable and I don't mean to imply otherwise, I was wondering if anyone had any bright ideas as to how to prevent my extra work having to be manually reinstated every time my schema changes?

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  • Is it possible to destroy a CDI scope?

    - by Matt Ball
    I'm working on a Java EE application, primarily JAX-RS with a JSF admin console, that uses CDI/Weld for dependency injection with @ApplicationScoped objects. Minor debugging issues aside, CDI has worked beautifully for this project. Now I need some very coarse-grained control over CDI-injected object lifecycles. I need the ability to: Remove an injected object from the application context, or Destroy/delete/clear/reset/remove the entire application context, or Define my own @ScopeType and implementing Context in which I could provide methods to perform one of the two above tasks. I'm fully aware that this is across, if not against, the grain of CDI and dependency injection in general. I just want to know Is this remotely possible? If yes, what is the easiest/simplest/quickest/foolproofiest way to get the job done?

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  • Java Webservice with generic methods

    - by danby
    Hi, I was wondering if it is possible to make a generic webservice method in java like this: @WebMethod public <T extends Foo> void testGeneric(T data){ However when I try to consume this with a Java client I get an error stating: [ERROR] Schema descriptor {http://####/}testGeneric in message part "parameters" is not defined and could not be bound to Java. I know it is possible to make a method that takes a parameter such as List and this generates correctly using JAX-WS. I don't mind if there is a solution that means I am tied to using only a particular technology. Thanks, Dan.

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  • Send custom data when initializing java WebService over soap

    - by Mesni
    Hello. I have a question about sending additional data over soap to the functions. My webService function requests only one integer, for example an getDocumentPrivilage(DocumentID). In another WebService user registered and he got an unique ID, so the other application can see who he is. So on Service one he registers, gets id and it has to send it to the other webservice tor the privilage. Id dont wish to rewrite the function so that it gets the unique ID (like this getDocumentPrivilage(uniqID,DocumentID)) but, the wish is that i would be able to create a client that sends this data at the initialization or somehow as some sort of parameter behind the function. Is this possible?? I tried the ServiceLifecycle but cant see any setting i've given in. Im using WebSphere CE for the server and Jax-ws Creating the webapp in java. Thank you very much in advance. lp, Mesni

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  • Is it possible to get collection of some ejb`s instances from container?

    - by kislo_metal
    Hi! Scenario: I have some @Statefull bean for user session (not an http session, it is web services session). And I need to manage user`s session per user. Goal: I need to have possibility to get collection of @Statefull UserSession`s instances and control maximum number of session`s per user, and session`s life time. Q: Is it possible to get Collection of ejb`s instances from ejb container, instead of storing them in some collection, map etc. ? I am using glassfish v3 , ejb 3.1, jax-ws. Thank You!

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  • JCP.Next - Early Adopters of JCP 2.8

    - by Heather VanCura
    JCP.Next is a series of three JSRs (JSR 348, JSR 355 and JSR 358), to be defined through the JCP process itself, with the JCP Executive Committee serving as the Expert Group. The proposed JSRs will modify the JCP's processes  - the Process Document and Java Specification Participation Agreement (JSPA) and will apply to all new JSRs for all Java platforms.   The first - JCP.next.1, or more formally JSR 348, Towards a new version of the Java Community Process - was completed and put into effect in October 2011 as JCP 2.8. This focused on a small number of simple but important changes to make our process more transparent and to enable broader participation. We're already seeing the benefits of these changes as new and existing JSRs adopt the new requirements. The second - JSR 355, Executive Committee Merge, is also Final. You can read the JCP 2.9 Process Document .  As part of the JSR 355 Final Release, the JCP Executive Committee published revisions to the JCP Process Document (version 2.9) and the EC Standing Rules (version 2.2).  The changes went into effect following the 2012 EC Elections in November. The third JSR 358, A major revision of the Java Community Process was submitted in June 2012.  This JSR will modify the Java Specification Participation Agreement (JSPA) as well as the Process Document, and will tackle a large number of complex issues, many of them postponed from JSR 348. For these reasons, the JCP EC (acting as the Expert Group for this JSR), expects to spend a considerable amount of time working on. The JSPA is defined by the JCP as "a one-year, renewable agreement between the Member and Oracle. The success of the Java community depends upon an open and transparent JCP program.  JSR 358, A major revision of the Java Community Process, is now in process and can be followed on java.net. The following JSRs and Spec Leads were the early adopters of JCP 2.8, who voluntarily migrated their JSRs from JCP 2.x to JCP 2.8 or above.  More candidates for 2012 JCP Star Spec Leads! JSR 236, Concurrency Utilities for Java EE (Anthony Lai/Oracle), migrated April 2012 JSR 308, Annotations on Java Types (Michael Ernst, Alex Buckley/Oracle), migrated September 2012 JSR 335, Lambda Expressions for the Java Programming Language (Brian Goetz/Oracle), migrated October 2012 JSR 337, Java SE 8 Release Contents (Mark Reinhold/Oracle) – EG Formation, migrated September 2012 JSR 338, Java Persistence 2.1 (Linda DeMichiel/Oracle), migrated January 2012 JSR 339, JAX-RS 2.0: The Java API for RESTful Web Services (Santiago Pericas-Geertsen, Marek Potociar/Oracle), migrated July 2012 JSR 340, Java Servlet 3.1 Specification (Shing Wai Chan, Rajiv Mordani/Oracle), migrated August 2012 JSR 341, Expression Language 3.0 (Kin-man Chung/Oracle), migrated August 2012 JSR 343, Java Message Service 2.0 (Nigel Deakin/Oracle), migrated March 2012 JSR 344, JavaServer Faces 2.2 (Ed Burns/Oracle), migrated September 2012 JSR 345, Enterprise JavaBeans 3.2 (Marina Vatkina/Oracle), migrated February 2012 JSR 346, Contexts and Dependency Injection for Java EE 1.1 (Pete Muir/RedHat) – migrated December 2011

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  • Talking JavaOne with Rock Star Adam Bien

    - by Janice J. Heiss
    Among the most celebrated developers in recent years, especially in the domain of Java EE and JavaFX, is consultant Adam Bien, who, in addition to being a JavaOne Rock Star for Java EE sessions given in 2009 and 20011, is a Java Champion, the winner of Oracle Magazine’s 2011 Top Java Developer of the Year Award, and recently won a 2012 JAX Innovation Award as a top Java Ambassador. Bien will be presenting the following sessions: TUT3907 - Java EE 6/7: The Lean Parts CON3906 - Stress-Testing Java EE 6 Applications Without Stress CON3908 - Building Serious JavaFX 2 Applications CON3896 - Interactive Onstage Java EE Overengineering I spoke with Bien to get his take on Java today. He expressed excitement that the smallest companies and startups are showing increasing interest in Java EE. “This is a very good sign,” said Bien. “Only a few years ago J2EE was mostly used by larger companies -- now it becomes interesting even for one-person shows. Enterprise Java events are also extremely popular. On the Java SE side, I'm really excited about Project Nashorn.” Nashorn is an upcoming JavaScript engine, developed fully in Java by Oracle, and based on the Da Vinci Machine (JSR 292) which is expected to be available for Java 8.   Bien expressed concern about a common misconception regarding Java's mediocre productivity. “The problem is not Java,” explained Bien, “but rather systems built with ancient patterns and approaches. Sometimes it really is ‘Cargo Cult Programming.’ Java SE/EE can be incredibly productive and lean without the unnecessary and hard-to-maintain bloat. The real problems are ‘Ivory Towers’ and not Java’s lack of productivity.” Bien remarked that if there is one thing he wanted Java developers to understand it is that, "Premature optimization is the root of all evil. Or at least of some evil. Modern JVMs and application servers are hard to optimize upfront. It is far easier to write simple code and measure the results continuously. Identify the hotspots first, then optimize.” He advised Java EE developers to, “Rethink everything you know about Enterprise Java. Before you implement anything, ask the question: ‘Why?’ If there is no clear answer -- just don't do it. Most well known best practices are outdated. Focus your efforts on the domain problem and not the technology.” Looking ahead, Bien said, “I would like to see open source application servers running directly on a hypervisor. Packaging the whole runtime in a single file would significantly simplify the deployment and operations.”Check out a recent Java Magazine interview with Bien about his Java EE 6 stress monitoring tool here. Originally published on blogs.oracle.com/javaone.

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  • JavaOne Rock Star – Adam Bien

    - by Janice J. Heiss
    Among the most celebrated developers in recent years, especially in the domain of Java EE and JavaFX, is consultant Adam Bien, who, in addition to being a JavaOne Rock Star for Java EE sessions given in 2009 and 2011, is a Java Champion, the winner of Oracle Magazine’s 2011 Top Java Developer of the Year Award, and recently won a 2012 JAX Innovation Award as a top Java Ambassador. Bien will be presenting the following sessions: TUT3907 - Java EE 6/7: The Lean Parts CON3906 - Stress-Testing Java EE 6 Applications Without Stress CON3908 - Building Serious JavaFX 2 Applications CON3896 - Interactive Onstage Java EE Overengineering I spoke with Bien to get his take on Java today. He expressed excitement that the smallest companies and startups are showing increasing interest in Java EE. “This is a very good sign,” said Bien. “Only a few years ago J2EE was mostly used by larger companies -- now it becomes interesting even for one-person shows. Enterprise Java events are also extremely popular. On the Java SE side, I'm really excited about Project Nashorn.” Nashorn is an upcoming JavaScript engine, developed fully in Java by Oracle, and based on the Da Vinci Machine (JSR 292) which is expected to be available for Java 8.    Bien expressed concern about a common misconception regarding Java's mediocre productivity. “The problem is not Java,” explained Bien, “but rather systems built with ancient patterns and approaches. Sometimes it really is ‘Cargo Cult Programming.’ Java SE/EE can be incredibly productive and lean without the unnecessary and hard-to-maintain bloat. The real problems are ‘Ivory Towers’ and not Java’s lack of productivity.” Bien remarked that if there is one thing he wanted Java developers to understand it is that, "Premature optimization is the root of all evil. Or at least of some evil. Modern JVMs and application servers are hard to optimize upfront. It is far easier to write simple code and measure the results continuously. Identify the hotspots first, then optimize.”   He advised Java EE developers to, “Rethink everything you know about Enterprise Java. Before you implement anything, ask the question: ‘Why?’ If there is no clear answer -- just don't do it. Most well known best practices are outdated. Focus your efforts on the domain problem and not the technology.” Looking ahead, Bien remarked, “I would like to see open source application servers running directly on a hypervisor. Packaging the whole runtime in a single file would significantly simplify the deployment and operations.” Check out a recent Java Magazine interview with Bien about his Java EE 6 stress monitoring tool here.

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  • Twitte API for Java - Hello Twitter Servlet (TOTD #178)

    - by arungupta
    There are a few Twitter APIs for Java that allow you to integrate Twitter functionality in a Java application. This is yet another API, built using JAX-RS and Jersey stack. I started this effort earlier this year and kept delaying to share because wanted to provide a more comprehensive API. But I've delayed enough and releasing it as a work-in-progress. I'm happy to take contributions in order to evolve this API and make it complete, useful, and robust. Drop a comment on the blog if you are interested or ping me at @arungupta. How do you get started ? Just add the following to your "pom.xml": <dependency> <groupId>org.glassfish.samples</groupId> <artifactId>twitter-api</artifactId> <version>1.0-SNAPSHOT</version></dependency> The implementation of this API uses Jersey OAuth Filters for authentication with Twitter and so the following dependencies are required if any API that requires authentication, which is pretty much all the APIs ;-) <dependency> <groupId>com.sun.jersey.contribs.jersey-oauth</groupId>     <artifactId>oauth-client</artifactId>     <version>${jersey.version}</version> </dependency> <dependency>     <groupId>com.sun.jersey.contribs.jersey-oauth</groupId>     <artifactId>oauth-signature</artifactId>     <version>${jersey.version}</version> </dependency> Once the dependencies are added to your project, inject Twitter  API in your Servlet (or any other Java EE component) as: @Inject Twitter twitter; Here is a simple non-secure invocation of the API to get you started: SearchResults result = twitter.search("glassfish", SearchResults.class);for (SearchResultsTweet t : result.getResults()) { out.println(t.getText() + "<br/>");} This code returns the tweets that matches the query "glassfish". The source code for the complete project can be downloaded here. Download it, unzip, and mvn package will build the .war file. And then deploy it on GlassFish or any other Java EE 6 compliant application server! The source code for the API also acts as the javadocs and can be checked out from here. A more detailed sample using security and several other API from this library is coming soon!

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  • links for 2011-02-16

    - by Bob Rhubart
    On the Software Architect Trail Software architect is the #1 job, according to a 2010 CNN-Money poll. In this article in Oracle Magazine, several members of the OTN architect community talk about the career paths that led them to this lucrative role.  (tags: oracle oraclemagazine softwarearchitect) Oracle Technology Network Architect Day: Denver Registration opens soon for this event to be held in Denver on March 23, 2011.  (tags: oracle otn entarch) How the Internet Gets Inside Us : The New Yorker "It isn’t just that we’ve lived one technological revolution among many; it’s that our technological revolution is the big social revolution that we live with." - Adam Gopnik (tags: internet progress technology innovation) The Insider Threat: Understand and Mitigate Your Risks: CSO Webcast February 23, 2011 at 1:00 PM EST/ 10:00 AM PST .  Speakers: Randy Trzeciak, lead for the CERT Insider Threat research team, and  Roxana Bradescu, Director of Database Security at Oracle. (tags: oracle CERT security) The Tom Kyte Blog: An Interesting Read... Tom looks at "an internet security firm brought down by not following the most *basic* of security principals." (tags: security oracle) Jason Williamson: Oracle as a Service in the Cloud "It is not trivial to migrate large amounts of pre-relational or 'devolved' relational data. To do this, we again must revert back to a tight roadmap to migration and leverage the growing tools and services that we have." - Jason Williamson (tags: oracle cloud soa) Edwin Biemond: Java / Oracle SOA blog: Building an asynchronous web service with JAX-WS "Building an asynchronous web service can be complex especially when you are used to synchronous Web services where you can wait for the response in your favorite tool." - Oracle ACE Edwin Biemond (tags: oracle oracleace java soa) Shared Database Servers (The SaaS Report) "Outside the virtualization world, there are capabilities of Oracle Database which can be used to prevent resource contention and guarantee SLA." - Shivanshu Upadhyay (tags: oracle database cloud SaaS) White Paper: Experiencing the New Social Enterprise "Increasingly organizations recognize the mandate to create a modern user experience that transforms existing business processes and increases business efficiency and agility." (tags: e20 enterprise2.0 socialcomputing oracle) Clusterware 11gR2 - Setting up an Active/Passive failover configuration Gilles Haro illustrates the steps necessary to achieve "a fully operational 11gR2 database protected by automatic failover capabilities." (tags: oracle clusterware) Oracle ERP: How to overcome local hurdles in a global implementation "The corporate world becomes a global village as many companies expand their business and offices around different countries and even continents. And this number keeps increasing. This globalization raises interesting questions..." - Jan Verhallen (tags: oracle capgemini entarch erp) Webcast: Successful Strategies for Optimizing Your Data Warehouse. March 3. 10 a.m. PT/1 p.m. ET Thursday, March 3, 2011. 10 a.m. PT/1 p.m. ET. Speakers: Mala Narasimharajan (Senior Product Marketing Manager, Oracle Data Integration) and Denis Gray (Principal Product Manager, Oracle Data Integration) (tags: oracle dataintegration datawarehousing)

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  • Java EE 7 turns one today!

    - by delabassee
    "Tell me and I forget. Teach me and I remember. Involve me and I learn." (Benjamin Franklin) Today marks the first year anniversary of Java EE 7. The JSR 342 specification was finalised on May 28, 2013 with the official launch taking place on June 12, 2013 (original press release). As of today, there are already 3 Java EE 7 compatible Application Servers, coming from different 'vendors' (Oracle, TmaxSoft and Red Hat). Two of those Java EE 7 Application Servers are free and open source. We expect the list of Java EE 7 compatible Application Servers to grow over the coming months. Source: RebelLabs - 'Java Tools and Technologies Landscape for 2014' According to a recent independent survey, one third of the Java EE users who participated in that survey is already using Java EE 7. This is a good sign but it also means that a lot of people are not yet on Java EE 7. So if you haven't yet embarked on Java EE 7, now is really the time to do so! There are various ways to learn Java EE 7, in no particular order ... Continue to read The Aquarium. Through this blog, we are relaying Java EE news but we are also doing our best to highlight relevant technical contents such as articles, community tutorials, etc. Watch the GlassFish YouTube channel. Amongst others, it contains the different videos of the Java EE 7 launch, those videos will give you good technical update on Java EE and its different components specifications (JMS 2.0, JAX-RS 2.0, EJB 3.2, etc.) Take a formal training. Oracle University is starting to roll-out Java EE 7 trainings like the 'Java EE 7: New Features' class.  Attend conferences and JUGs sessions. On that note, we have spent a lot of time to create a strong JavaOne 'Server-Side Java' track. It's still possible to benefit from the early bird JavaOne pricing but don't wait too much! Read books. There are more than 25 (!) books related to Java EE 7 or to one of the Java EE 7 component specification.  There are many more ways to learn Java EE but if I have to suggest one and only one way, I would recommend the Java EE 7 Tutorial. It's exhaustive and clear, it's free and it continues to evolve. And finally as the introductory quote suggest, participation is key to learning. Participate in JUGs,  participate in Adopt-a-JSR, get involved in the different open source communities evolving around Java EE, participate in the JCP... in one word, participate!

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