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

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[pde-dev] Starting a runtime Eclipse fails with Exception in org.eclipse

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error on launch

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java.lang.IllegalArgumentException: 	at org.eclipse.osgi.internal.framework.legacy.PackageAdminImpl.getBundles(PackageAdminImpl.java:172)	at org.eclipse.equinox.internal.simpleconfigurator.ConfigApplier.refreshPackages(ConfigApplier.java:401)	at org.eclipse.equinox.internal.simpleconfigurator.ConfigApplier.install(ConfigApplier.java:105)	at org.eclipse.equinox.internal.simpleconfigurator.SimpleConfiguratorImpl.applyConfiguration(SimpleConfiguratorImpl.java:191)	at org.eclipse.equinox.internal.simpleconfigurator.SimpleConfiguratorImpl.applyConfiguration(SimpleConfiguratorImpl.java:205)	at org.eclipse.equinox.internal.simpleconfigurator.Activator.start(Activator.java:60)	at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:774)	at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)	at java.security.AccessController.doPrivileged(Native Method)	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:767)	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:724)	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:932)	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:309)	at org.eclipse.osgi.container.Module.doStart(Module.java:581)	at org.eclipse.osgi.container.Module.start(Module.java:449)	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1620)	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1600)	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1571)	at org.eclipse.osgi.container.SystemModule.startWorker(SystemModule.java:247)	at org.eclipse.osgi.container.Module.doStart(Module.java:581)	at org.eclipse.osgi.container.Module.start(Module.java:449)	at org.eclipse.osgi.container.SystemModule.start(SystemModule.java:177)	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:383)	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:402)	at org.eclipse.osgi.launch.Equinox.start(Equinox.java:115)	at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:326)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:239)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610)	at org.eclipse.equinox.launcher.Main.run(Main.java:1519)	at org.eclipse.equinox.launcher.Main.main(Main.java:1492)