Eclipse RCP应用程序-无法生成项目

我的EclipseRCP项目停止运行，我没有做任何更改。我有两个运行配置，一个是.product，另一个是application（在出现问题之前都已运行）

当我尝试运行.product configuration时，生成在没有任何登录控制台的情况下终止（我尝试运行调试器，但它在本机代码中的某个地方终止）

当我尝试运行.application configuration时，控制台中有很多错误：

!ENTRY org.eclipse.ui.workbench 4 2 2015-12-30 08:00:41.367
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in "org.eclipse.swtbot.eclipse.ui" was unable to instantiate class "org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer".
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:186)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
    at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:293)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:288)
    at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:120)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:68)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$56.run(Workbench.java:2812)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.NullPointerException
    at org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer.<init>(PreferenceInitializer.java:46)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
    ... 11 more
!SUBENTRY 1 org.eclipse.equinox.registry 4 1 2015-12-30 08:00:41.368
!MESSAGE Plug-in "org.eclipse.swtbot.eclipse.ui" was unable to instantiate class "org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer".
!STACK 0
java.lang.NullPointerException
    at org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer.<init>(PreferenceInitializer.java:46)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
    at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:293)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:288)
    at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:120)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:68)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$56.run(Workbench.java:2812)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
!SUBENTRY 1 org.eclipse.equinox.registry 4 1 2015-12-30 08:00:41.368
!MESSAGE Plug-in "org.eclipse.swtbot.eclipse.ui" was unable to instantiate class "org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer".
!STACK 0
java.lang.NullPointerException
    at org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer.<init>(PreferenceInitializer.java:46)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
    at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:293)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:288)
    at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:120)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:68)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$56.run(Workbench.java:2812)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

!ENTRY org.eclipse.ui 4 4 2015-12-30 08:00:41.370
!MESSAGE Unhandled Exception

!ENTRY org.eclipse.swtbot.eclipse.ui 4 0 2015-12-30 08:00:41.371
!MESSAGE Unable to execute early startup code for an extension
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in "org.eclipse.swtbot.eclipse.ui" was unable to instantiate class "org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer".
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:194)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:186)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
    at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:293)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:288)
    at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:120)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:68)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$56.run(Workbench.java:2812)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.NullPointerException
    at org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer.<init>(PreferenceInitializer.java:46)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
    ... 11 more
!SUBENTRY 1 org.eclipse.equinox.registry 4 1 2015-12-30 08:00:41.371
!MESSAGE Plug-in "org.eclipse.swtbot.eclipse.ui" was unable to instantiate class "org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer".
!STACK 0
java.lang.NullPointerException
    at org.eclipse.swtbot.eclipse.ui.preferences.PreferenceInitializer.<init>(PreferenceInitializer.java:46)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
    at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:293)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:288)
    at org.eclipse.ui.internal.EarlyStartupRunnable.getExecutableExtension(EarlyStartupRunnable.java:120)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:68)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$56.run(Workbench.java:2812)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

!ENTRY org.eclipse.ui.workbench 4 2 2015-12-30 08:00:41.373
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
java.lang.NullPointerException
    at org.eclipse.ui.internal.monitoring.MonitoringStartup.earlyStartup(MonitoringStartup.java:33)
    at org.eclipse.ui.internal.EarlyStartupRunnable.runEarlyStartup(EarlyStartupRunnable.java:90)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:68)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$56.run(Workbench.java:2812)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

!ENTRY org.eclipse.ui 4 4 2015-12-30 08:00:41.373
!MESSAGE Unhandled Exception

!ENTRY org.eclipse.ui.monitoring 4 0 2015-12-30 08:00:41.374
!MESSAGE Unable to execute early startup code for an extension
!STACK 0
java.lang.NullPointerException
    at org.eclipse.ui.internal.monitoring.MonitoringStartup.earlyStartup(MonitoringStartup.java:33)
    at org.eclipse.ui.internal.EarlyStartupRunnable.runEarlyStartup(EarlyStartupRunnable.java:90)
    at org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:68)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.internal.Workbench$56.run(Workbench.java:2812)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

!ENTRY org.eclipse.core.jobs 2 2 2015-12-30 08:00:42.189
!MESSAGE Job found still running after platform shutdown.  Jobs should be canceled by the plugin that scheduled them during shutdown: org.eclipse.epp.internal.logging.aeri.ide.Startup$1
Job found still running after platform shutdown.  Jobs should be canceled by the plugin that scheduled them during shutdown: org.eclipse.epp.internal.logging.aeri.ide.Startup$1

!ENTRY org.eclipse.core.jobs 2 2 2015-12-30 08:00:42.190
!MESSAGE Job found still running after platform shutdown.  Jobs should be canceled by the plugin that scheduled them during shutdown: org.eclipse.epp.internal.mpc.ui.wizards.MarketplaceDropAdapter$1
Job found still running after platform shutdown.  Jobs should be canceled by the plugin that scheduled them during shutdown: org.eclipse.epp.internal.mpc.ui.wizards.MarketplaceDropAdapter$1

我试图删除： .metadata.plugins .metadata.plugins\org.eclipse.e4.workbench\workingsets.xml

但问题依然存在

---

编辑：问题已解决。我用clear flag（运行配置->主（书签）->工作区数据（区域）->clear（标志）和错误消失）

启动应用程序，它是

org.eclipse.swtbot.eclipse.ui.preferences.preferences初始值设定项的构造函数，它得到一个
NullPointerException
。可能它正在做一些在早期启动代码中不起作用的事情。如何检查/调试它？
try {
        result = classInstance.newInstance();
    } catch (Exception e) {
        throwException(NLS.bind(RegistryMessages.plugin_instantiateClassError, contributingBundle.getSymbolicName(), className), e);
    } catch (LinkageError e1) {