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Rick Hegarty commented on NETBEANS-461: --------------------------------------- I also see similar problems on Win 10 in the following ten scenarios unless *Tool > Options > Web Browser > Web Browser* is set to *Embedded WebKit Browser*: 1. Edit a Java source file, right click on a JDK method or class, then select *Open Javadoc*. 2. In the Projects panel select a project, right click and select *Generate Javadoc*. 3. In the Projects panel select a project, expand the Libraries node, right click on *JDK 1.8 (Default)* and select *Show Javadoc*. 4. In the Projects panel select a project using JUnit, expand the Test Libraries node, right click on *Junit 4.12* and select *Show Javadoc*. 5. In the Projects panel select a web project, right click and select *Run*. 6. Select Help > About then click on any of the URLs on the About page (e.g. *netbeans.apache.org*). 7. Select Help > Online Docs and Support. 8. Select Help > Javadoc Index Search. 9. Select Help > Javadoc References > select any submenu entry. 10. Select Window > Web > Web Browser. In all cases the error is _java.lang.NoClassDefFoundError: Could not initialize class org.netbeans.modules.extbrowser.NbDdeBrowserImpl_ This is my environment: Product Version: Apache NetBeans IDE Dev (Build incubator-netbeans-linux-366-on-20180314) Java: 1.8.0_162; Java HotSpot(TM) 64-Bit Server VM 25.162-b12 Runtime: Java(TM) SE Runtime Environment 1.8.0_162-b12 System: Windows 10 version 10.0 running on amd64; Cp1252; en_US (nb) User directory: C:\Users\johndoe\AppData\Roaming\NetBeans\dev Cache directory: C:\Users\johndoe\AppData\Local\NetBeans\Cache\dev Here is a stack trace with Chrome set as the browser when selecting *Help > Online Docs and Support*: java.lang.NoClassDefFoundError: Could not initialize class org.netbeans.modules.extbrowser.NbDdeBrowserImpl at org.netbeans.modules.extbrowser.ChromeBrowser.createHtmlBrowserImpl(ChromeBrowser.java:85) at org.netbeans.core.NbURLDisplayer.warmBrowserUp(NbURLDisplayer.java:100) at org.netbeans.core.NbURLDisplayer.access$000(NbURLDisplayer.java:47) at org.netbeans.core.NbURLDisplayer$1.run(NbURLDisplayer.java:59) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418) at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033) Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to at org.openide.util.RequestProcessor.post(RequestProcessor.java:395) at org.netbeans.core.NbURLDisplayer.showURL(NbURLDisplayer.java:55) at org.netbeans.modules.url.URLDataObject.open(URLDataObject.java:227) at org.netbeans.modules.url.URLPresenter.actionPerformed(URLPresenter.java:159) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.AbstractButton.doClick(AbstractButton.java:376) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:842) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:886) at java.awt.Component.processMouseEvent(Component.java:6533) at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) at java.awt.Component.processEvent(Component.java:6298) at java.awt.Container.processEvent(Container.java:2237) at java.awt.Component.dispatchEventImpl(Component.java:4889) at java.awt.Container.dispatchEventImpl(Container.java:2295) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4889) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4526) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4467) at java.awt.Container.dispatchEventImpl(Container.java:2281) at java.awt.Window.dispatchEventImpl(Window.java:2746) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90) at java.awt.EventQueue$4.run(EventQueue.java:733) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80) at java.awt.EventQueue.dispatchEvent(EventQueue.java:730) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [catch] at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) > Could not initialize class org.netbeans.modules.extbrowser.NbDdeBrowserImpl > --------------------------------------------------------------------------- > > Key: NETBEANS-461 > URL: https://issues.apache.org/jira/browse/NETBEANS-461 > Project: NetBeans > Issue Type: Bug > Components: ide - Code > Affects Versions: 9.0 > Reporter: efrem mccrimon > Priority: Major > Labels: pull-request-available > Attachments: messages.log > > Time Spent: 1h 20m > Remaining Estimate: 0h > > Class not initializing > When navigating to Window->Web->Web Browser > throws the error even when a default Browser is configured in Options > settings. > I was testing XSL Transformations, "Process Output" settings - Open in > Browser fails > > > java.lang.NoClassDefFoundError: Could not initialize class > org.netbeans.modules.extbrowser.NbDdeBrowserImpl > at > org.netbeans.modules.extbrowser.ChromeBrowser.createHtmlBrowserImpl(ChromeBrowser.java:85) > at org.netbeans.core.NbURLDisplayer.warmBrowserUp(NbURLDisplayer.java:100) > at org.netbeans.core.NbURLDisplayer.access$000(NbURLDisplayer.java:47) > at org.netbeans.core.NbURLDisplayer$1.run(NbURLDisplayer.java:59) > at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418) > at > org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45) > at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278) > at > org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033) > Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to > at org.openide.util.RequestProcessor.post(RequestProcessor.java:395) > at org.netbeans.core.NbURLDisplayer.showURL(NbURLDisplayer.java:55) > at > org.netbeans.core.actions.HTMLViewAction.performAction(HTMLViewAction.java:49) > at > org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:105) > at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:70) > at > org.openide.util.actions.ActionInvoker.doPerformAction(ActionInvoker.java:91) > at org.openide.util.actions.ActionInvoker.invokeAction(ActionInvoker.java:74) > at > org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:102) > at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) > at > javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) > at > javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) > at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) > at javax.swing.AbstractButton.doClick(AbstractButton.java:376) > at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833) > at > javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877) > at java.awt.Component.processMouseEvent(Component.java:6533) > at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) > at java.awt.Component.processEvent(Component.java:6298) > at java.awt.Container.processEvent(Container.java:2236) > at java.awt.Component.dispatchEventImpl(Component.java:4889) > at java.awt.Container.dispatchEventImpl(Container.java:2294) > at java.awt.Component.dispatchEvent(Component.java:4711) > at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888) > at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525) > at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466) > at java.awt.Container.dispatchEventImpl(Container.java:2280) > at java.awt.Window.dispatchEventImpl(Window.java:2746) > at java.awt.Component.dispatchEvent(Component.java:4711) > at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) > at java.awt.EventQueue.access$500(EventQueue.java:97) > at java.awt.EventQueue$3.run(EventQueue.java:709) > at java.awt.EventQueue$3.run(EventQueue.java:703) > at java.security.AccessController.doPrivileged(Native Method) > at > java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) > at > java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) > at java.awt.EventQueue$4.run(EventQueue.java:731) > at java.awt.EventQueue$4.run(EventQueue.java:729) > at java.security.AccessController.doPrivileged(Native Method) > at > java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) > at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) > at > org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136) > at > java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) > at > java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) > at > java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) > at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) > at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) > [catch] at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) > > -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@netbeans.apache.org For additional commands, e-mail: 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