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java.lang.IllegalStateException: Duplicate pair in treePair1: SL[/Browsers/SwingBrowser pair2: SL[/Browsers/SwingBrowser index1: 6 index2: 6 item1: org.netbeans.core.ui.SwingBrowser@18cbb65 item2: org.netbeans.core.ui.SwingBrowser@18cbb65 id1: 62e8c8 id2: 1a0df30 at org.openide.util.lookup.ALPairComparator.compare(ALPairComparator.java:52) at java.util.TreeMap.compare(TreeMap.java:1093) at java.util.TreeMap.put(TreeMap.java:465) at java.util.TreeSet.add(TreeSet.java:210) at org.openide.util.lookup.AbstractLookup$R.initItems(AbstractLookup.java:788) at org.openide.util.lookup.AbstractLookup$R.allItemsWithoutBeforeLookup(AbstractLookup.java:749) at org.openide.util.lookup.AbstractLookup$R.allInstances(AbstractLookup.java:691) at org.openide.util.lookup.ProxyLookup$R.computeResult(ProxyLookup.java:378) at org.openide.util.lookup.ProxyLookup$R.allInstances(ProxyLookup.java:329) at org.openide.util.lookup.ProxyLookup$R.computeResult(ProxyLookup.java:378) at org.openide.util.lookup.ProxyLookup$R.allInstances(ProxyLookup.java:329) at org.netbeans.core.IDESettings.getWWWBrowser(IDESettings.java:345) at org.netbeans.core.NbTopManager$NbBrowser.<init>(NbTopManager.java:613) at org.netbeans.core.NbTopManager$1.run(NbTopManager.java:328) at org.openide.util.Mutex.doEvent(Mutex.java:903) at org.openide.util.Mutex.readAccess(Mutex.java:227) at org.netbeans.core.NbTopManager$NbURLDisplayer.showURL(NbTopManager.java:325) at org.netbeans.modules.url.URLDataObject.open(URLDataObject.java:169) at org.netbeans.modules.url.URLPresenter.actionPerformed(URLPresenter.java:150) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.AbstractButton.doClick(AbstractButton.java:302) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1000) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1041) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3093) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1766) at java.awt.Component.dispatchEvent(Component.java:3803) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
This is a browser integration issue in core I believe, reasigning.
Known bug in 4.0b2. Fixed in recent 4.0 builds. *** This issue has been marked as a duplicate of 48590 ***
closed