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POIntelliJ IDEA 11: Maven support not working
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copied!<p>I use IntelliJ IDEA 11.0.1 (Community Edition) on Mac OS X 10.6.8 (Snow Leopard) for Java and Scala Programming. Today I wanted to deal with Maven for the first time as I don't have any experience with build tools yet. But somehow the Maven support in IDEA doesn't seem to work at all.</p> <p>Some facts:</p> <ul> <li>Maven 3.0.3 has been installed via MacPorts in <code>/Applications/MacPorts/share/java/maven3</code></li> <li>the Maven plugin has been activated in the plugin manager</li> <li>Environment variables M2 and M2_HOME are set in <code>~/.MacOSX/environment.plist</code> <ul> <li>M2: <code>/Applications/MacPorts/share/java/maven3/bin</code></li> <li>M2_HOME: <code>/Applications/MacPorts/share/java/maven3</code></li> </ul></li> <li>Maven settings in IDEA are set to default</li> <li>Maven can be called from command line without any problems and works fine</li> </ul> <p>If I try to open any pom.xml file via <code>File > Open Project</code>, nothing happens. Sometimes a small window with a progress bar opens for a second or two, obviously scanning some files, but always without any effect.</p> <p>If I try to import an existing Maven project via <code>File > New Project > Import Project from External Model</code>, I only get to the window where I can define the project root directory and several Maven settings. When I click <code>Next</code>, nothing happens.</p> <p>If I execute the Maven goal <code>mvn idea:idea</code> on a Maven project, I'm able to open it in IDEA. After it has opened, a little green window appears in the upper right corner of IDEA, saying <code>Maven projects need to be imported</code> with two options: <code>Import changes</code> and <code>Enable Auto-Import</code>. It doesn't matter which one I choose, because nothing seems to happen. When I open the Maven Projects panel on the right side of IDEA it still says <code>There are no Maven projects to display</code>. If I try to add a Maven project from within this panel, either nothing happens as before or IDEA even completely refuses to open a pom.xml file in the <code>Select Path</code> window, because the OK button is greyed out.</p> <p>I've checked the log files under <code>Help > Reveal Log in Finder</code> and they state some repeated exceptions which have to do with Maven. Here are two examples:</p> <pre><code>2012-01-01 22:42:26,736 [3469999] ERROR - #org.jetbrains.idea.maven - IntelliJ IDEA 11.0.1 Build #IU-111.167 2012-01-01 22:42:26,736 [3469999] ERROR - #org.jetbrains.idea.maven - JDK: 1.6.0_29 2012-01-01 22:42:26,736 [3469999] ERROR - #org.jetbrains.idea.maven - VM: Java HotSpot(TM) 64-Bit Server VM 2012-01-01 22:42:26,736 [3469999] ERROR - #org.jetbrains.idea.maven - Vendor: Apple Inc. 2012-01-01 22:42:26,736 [3469999] ERROR - #org.jetbrains.idea.maven - OS: Mac OS X 2012-01-01 22:42:26,736 [3469999] ERROR - #org.jetbrains.idea.maven - Last Action: OpenProject 2012-01-01 22:42:26,736 [3469999] ERROR - #org.jetbrains.idea.maven - Original exception: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.io.InvalidClassException: gnu.trove.TObjectHash; local class incompatible: stream classdesc serialVersionUID = 1980179659817003644, local class serialVersionUID = -3461112548087185871 at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:334) at sun.rmi.transport.Transport$1.run(Transport.java:159) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:155) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680) at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132) at $Proxy80.applyProfiles(Unknown Source) at sun.reflect.GeneratedMethodAccessor113.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.intellij.execution.rmi.RemoteUtil$3$1$1.compute(RemoteUtil.java:94) at com.intellij.execution.rmi.RemoteUtil.executeWithClassLoader(RemoteUtil.java:132) at com.intellij.execution.rmi.RemoteUtil$3$1.invoke(RemoteUtil.java:91) at $Proxy80.applyProfiles(Unknown Source) at org.jetbrains.idea.maven.server.MavenServerManager$8.execute(MavenServerManager.java:316) at org.jetbrains.idea.maven.server.MavenServerManager$8.execute(MavenServerManager.java:313) at org.jetbrains.idea.maven.server.RemoteObjectWrapper.perform(RemoteObjectWrapper.java:76) at org.jetbrains.idea.maven.server.MavenServerManager.applyProfiles(MavenServerManager.java:313) at org.jetbrains.idea.maven.project.MavenProjectReader.applyProfiles(MavenProjectReader.java:357) at org.jetbrains.idea.maven.project.MavenProjectReader.doReadProjectModel(MavenProjectReader.java:90) at org.jetbrains.idea.maven.project.MavenProjectReader.readProject(MavenProjectReader.java:53) at org.jetbrains.idea.maven.project.MavenProject.read(MavenProject.java:389) at org.jetbrains.idea.maven.project.MavenProjectsTree.doUpdate(MavenProjectsTree.java:537) at org.jetbrains.idea.maven.project.MavenProjectsTree.doAdd(MavenProjectsTree.java:484) at org.jetbrains.idea.maven.project.MavenProjectsTree.update(MavenProjectsTree.java:445) at org.jetbrains.idea.maven.project.MavenProjectsTree.updateAll(MavenProjectsTree.java:416) at org.jetbrains.idea.maven.project.MavenProjectsProcessorReadingTask.perform(MavenProjectsProcessorReadingTask.java:60) at org.jetbrains.idea.maven.project.MavenProjectsProcessor.doProcessPendingTasks(MavenProjectsProcessor.java:131) at org.jetbrains.idea.maven.project.MavenProjectsProcessor.access$100(MavenProjectsProcessor.java:28) at org.jetbrains.idea.maven.project.MavenProjectsProcessor$2.run(MavenProjectsProcessor.java:107) at org.jetbrains.idea.maven.utils.MavenUtil$9.run(MavenUtil.java:396) at com.intellij.openapi.application.impl.ApplicationImpl$6.run(ApplicationImpl.java:422) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680) at com.intellij.openapi.application.impl.ApplicationImpl$1$1.run(ApplicationImpl.java:137) Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.io.InvalidClassException: gnu.trove.TObjectHash; local class incompatible: stream classdesc serialVersionUID = 1980179659817003644, local class serialVersionUID = -3461112548087185871 at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:291) at sun.rmi.transport.Transport$1.run(Transport.java:159) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:155) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680) Caused by: java.io.InvalidClassException: gnu.trove.TObjectHash; local class incompatible: stream classdesc serialVersionUID = 1980179659817003644, local class serialVersionUID = -3461112548087185871 at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:562) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1582) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1582) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350) at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:306) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:288) </code></pre> <p>Next:</p> <pre><code>2012-01-01 21:45:33,856 [ 57119] INFO - api.vfs.impl.local.FileWatcher - 1 paths checked, 0 mapped, 44 mks 2012-01-01 21:46:16,240 [ 99503] INFO - api.vfs.impl.local.FileWatcher - 7 paths checked, 0 mapped, 449 mks 2012-01-01 21:47:17,728 [ 160991] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $OPTIONS$/dataSources.xml file is null 2012-01-01 21:47:17,728 [ 160991] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $OPTIONS$/dataSources.xml 2012-01-01 21:47:17,763 [ 161026] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/dataSources.xml file is null 2012-01-01 21:47:17,763 [ 161026] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $PROJECT_CONFIG_DIR$/dataSources.xml 2012-01-01 21:47:17,867 [ 161130] INFO - api.vfs.impl.local.FileWatcher - 2 paths checked, 0 mapped, 153 mks 2012-01-01 21:47:34,669 [ 177932] INFO - s.impl.stores.FileBasedStorage - Document was not loaded for $APP_CONFIG$/print.xml file is null 2012-01-01 21:47:34,669 [ 177932] INFO - .impl.stores.XmlElementStorage - Document was not loaded for $APP_CONFIG$/print.xml 2012-01-01 21:47:56,928 [ 200191] ERROR - com.intellij.ide.IdeEventQueue - Error during dispatching of java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.intellij.ui.mac.MacFileChooserDialo gImpl$4$1@5f2d6fa7,notifier=null,catchExceptions=false,when=1325450876871] on apple.awt.CToolkit@4ad70ab0 java.lang.RuntimeException: Cannot reconnect. at org.jetbrains.idea.maven.server.RemoteObjectWrapper.perform(RemoteObjectWrapper.java:82) at org.jetbrains.idea.maven.server.MavenServerManager.applyProfiles(MavenServerManager.java:313) at org.jetbrains.idea.maven.project.MavenProjectReader.applyProfiles(MavenProjectReader.java:357) at org.jetbrains.idea.maven.project.MavenProjectReader.doReadProjectModel(MavenProjectReader.java:90) at org.jetbrains.idea.maven.project.MavenProjectReader.readProject(MavenProjectReader.java:53) at org.jetbrains.idea.maven.project.MavenProject.read(MavenProject.java:389) at org.jetbrains.idea.maven.project.MavenProjectsTree.doUpdate(MavenProjectsTree.java:537) at org.jetbrains.idea.maven.project.MavenProjectsTree.doAdd(MavenProjectsTree.java:484) at org.jetbrains.idea.maven.project.MavenProjectsTree.update(MavenProjectsTree.java:445) at org.jetbrains.idea.maven.project.MavenProjectsTree.updateAll(MavenProjectsTree.java:416) at org.jetbrains.idea.maven.wizards.MavenProjectBuilder.readMavenProjectTree(MavenProjectBuilder.java:198) at org.jetbrains.idea.maven.wizards.MavenProjectBuilder.access$800(MavenProjectBuilder.java:44) at org.jetbrains.idea.maven.wizards.MavenProjectBuilder$3.run(MavenProjectBuilder.java:179) at org.jetbrains.idea.maven.utils.MavenUtil$8.run(MavenUtil.java:364) at com.intellij.openapi.progress.impl.ProgressManagerImpl$TaskRunnable.run(ProgressManagerImpl.java:457) at com.intellij.openapi.progress.impl.ProgressManagerImpl$5.run(ProgressManagerImpl.java:276) at com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run(ProgressManagerImpl.java:178) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:206) at com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcess(ProgressManagerImpl.java:169) at com.intellij.openapi.application.impl.ApplicationImpl$8$1.run(ApplicationImpl.java:629) at com.intellij.openapi.application.impl.ApplicationImpl$6.run(ApplicationImpl.java:422) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680) at com.intellij.openapi.application.impl.ApplicationImpl$1$1.run(ApplicationImpl.java:137) Caused by: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.io.InvalidClassException: gnu.trove.TObjectHash; local class incompatible: stream classdesc serialVersionUID = 1980179659817003644, local class serialVersionUID = -3461112548087185871 at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:334) at sun.rmi.transport.Transport$1.run(Transport.java:159) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:155) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680) at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:255) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:233) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:142) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132) at $Proxy80.applyProfiles(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.intellij.execution.rmi.RemoteUtil$3$1$1.compute(RemoteUtil.java:94) at com.intellij.execution.rmi.RemoteUtil.executeWithClassLoader(RemoteUtil.java:132) at com.intellij.execution.rmi.RemoteUtil$3$1.invoke(RemoteUtil.java:91) at $Proxy80.applyProfiles(Unknown Source) at org.jetbrains.idea.maven.server.MavenServerManager$8.execute(MavenServerManager.java:316) at org.jetbrains.idea.maven.server.MavenServerManager$8.execute(MavenServerManager.java:313) at org.jetbrains.idea.maven.server.RemoteObjectWrapper.perform(RemoteObjectWrapper.java:76) </code></pre> <p>Can anyone help me with this?</p>

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