java.lang.NullPointerException: This exception has no message.

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This exception has no message.
java.lang.NullPointerException:
at com.m7.wide.eclipse.jstudio.Plugin.A(Unknown Source)
at com.m7.wide.eclipse.jstudio.Plugin.startup(Unknown Source)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:988)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:969)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:321)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:337)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:389)
at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.loadClass(AbstractClassLoader.java:74)
at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:275)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:152)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:142)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:129)
at org.eclipse.core.internal.events.BuildManager.instantiateBuilder(BuildManager.java:724)
at org.eclipse.core.internal.events.BuildManager.initializeBuilder(BuildManager.java:676)
at org.eclipse.core.internal.events.BuildManager.getBuilder(BuildManager.java:434)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:200)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1029)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:234)
at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:253)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:282)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:572)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:734)
at org.eclipse.debug.internal.ui.DebugUIPlugin$6.run(DebugUIPlugin.java:932)

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