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This issue was reported manually by ray_ww. It already has 4 duplicates Build: NetBeans IDE 7.1 RC2 (Build 201111302200) VM: Java HotSpot(TM) Client VM, 21.1-b02, Java(TM) SE Runtime Environment, 1.7.0_01-b08 OS: Windows XP User Comments: ray_ww: Starting up Netbeans ray_ww: Starting Netbeans ray_ww: Starting up Netbeans Stacktrace: java.lang.NullPointerException at org.eclipse.core.internal.net.ProxyManager.getPluggedInAuthenticator(ProxyManager.java:390) at org.eclipse.core.internal.net.ProxyManager.registerAuthenticator(ProxyManager.java:383) at org.eclipse.core.internal.net.ProxyManager.initialize(ProxyManager.java:284) at org.eclipse.core.internal.net.Activator.start(Activator.java:179) at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:783) at java.security.AccessController.doPrivileged(AccessController.java:0)
Created attachment 114220 [details] stacktrace
*** Bug 206436 has been marked as a duplicate of this bug. ***
*** This bug has been marked as a duplicate of bug 206468 ***
I think this issue is not yet resolved. I am facing the same on NetBeans 7.3. Once this exception come after that Start Screen goes off silently, and my application ends with "Result: 50346" Stacktrace: SEVERE [org.netbeans.modules.netbinox]: framework event org.eclipse.mylyn.commons.core type 2 java.lang.NullPointerException at org.eclipse.core.internal.net.ProxyManager.getPluggedInAuthenticator(ProxyManager.java:382) at org.eclipse.core.internal.net.ProxyManager.registerAuthenticator(ProxyManager.java:375) at org.eclipse.core.internal.net.ProxyManager.initialize(ProxyManager.java:276) at org.eclipse.core.internal.net.Activator.start(Activator.java:181) at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711) at java.security.AccessController.doPrivileged(Native Method) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702) Caused: org.osgi.framework.BundleException: Exception in org.eclipse.core.internal.net.Activator.start() of bundle org.eclipse.core.net. at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:734) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:683) at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381) at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:300) at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:440) at org.eclipse.osgi.internal.loader.BundleLoader.setLazyTrigger(BundleLoader.java:263) at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:
Exception reporter does not show any failure coming from 7.2 or 7.3. Looks like this issue is fixed.