解决myeclipse10.x的Servers产生的at com.genuitec.eclipse.ast.deploy.core.Deployment.<init>(Unknown Source)错

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错误：

java.lang.NullPointerException  at com.genuitec.eclipse.ast.deploy.core.Deployment.<init>(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.ModuleDeployment.<init>(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.WebDeployment.<init>(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.Deployment.create(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.loadFromPreferences(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.init(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.<init>(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.DeploymentManager.getDefault(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.ui.ServerTreeViewer$ServerTreeContentProvider.inputChanged(Unknown Source)  at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:276)  at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1690)  at com.genuitec.eclipse.ast.deploy.core.ui.ServerTreeViewer.<init>(Unknown Source)  at com.genuitec.eclipse.ast.deploy.core.ui.ServerView.createPartControl(Unknown Source)  at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:375)  at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:229)  at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)  at org.eclipse.ui.internal.WorkbenchPage$ActivationList.setActive(WorkbenchPage.java:4317)  at org.eclipse.ui.internal.WorkbenchPage$18.runWithException(WorkbenchPage.java:3359)  at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)  at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)  at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)

at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
 at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803)
 at org.eclipse.ui.internal.Workbench$33.runWithException(Workbench.java:1600)
 at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
 at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
 at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
 at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
 at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2609)
 at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
 at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
 at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
 at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
 at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
 at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
 at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
 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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
 at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)

解决办法：

1. Shut down the workspace.
2. Delete  the file com.genuitec.eclipse.ast.deploy.core.prefs which is located at <workspace dir>/.metadata/.plugins/org.eclipse.core.runtime/.settings/com.genuitec.eclipse.ast.deploy.core.prefs
3. Start the IDE.

 at org.eclipse.equinox.launcher.Main.run(Main.java:1410)

解决myeclipse10.x的Servers产生的at com.genuitec.eclipse.ast.deploy.core.Deployment.<init>(Unknown Source)错

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原文地址：http://www.cnblogs.com/mr-ai2014/p/4300878.html