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Build: NetBeans IDE 7.0.1 (Build 201107282000) VM: Java HotSpot(TM) Client VM, 20.4-b02, Java(TM) SE Runtime Environment, 1.6.0_29-b11 OS: Linux Stacktrace: java.lang.NullPointerException at org.netbeans.modules.j2ee.deployment.impl.ServerFileDistributor.distributeOnSave(ServerFileDistributor.java:203) at org.netbeans.modules.j2ee.deployment.impl.TargetServer.distributeChangesOnSave(TargetServer.java:254) at org.netbeans.modules.j2ee.deployment.impl.TargetServer.notifyArtifactsUpdated(TargetServer.java:850) at org.netbeans.modules.j2ee.deployment.impl.DeployOnSaveManager$DeployTask.notifyServer(DeployOnSaveManager.java:497) at org.netbeans.modules.j2ee.deployment.impl.DeployOnSaveManager$DeployTask.run(DeployOnSaveManager.java:414) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
Created attachment 114912 [details] stacktrace
This needs a steps to reproduce. What server plugin do you use? What project type do you use? Does not really seem to be generic problem.