java.lang.NoClassDefFoundError: org/eclipse/osgi/baseadaptor/HookConfigurator

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java.lang.NoClassDefFoundError: org/eclipse/osgi/baseadaptor/HookConfigurator
at java.lang.ClassLoader.findBootstrapClass(Native Method)
at java.lang.ClassLoader.findBootstrapClass0(
at java.lang.ClassLoader.loadClass(
at java.lang.ClassLoader.loadClass(
at sun.misc.Launcher$AppClassLoader.loadClass(
at java.lang.ClassLoader.loadClass(
at java.lang.ClassLoader.loadClassInternal(
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(
at org.eclipse.osgi.baseadaptor.HookRegistry.loadConfigurators(
at org.eclipse.osgi.baseadaptor.HookRegistry.initialize(
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(
at org.eclipse.core.runtime.adaptor.EclipseStarter.createAdaptor(
at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(

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