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Null Pointer Exception occurs when opening a project #696

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vaisakhkannan opened this issue Dec 13, 2024 · 7 comments · Fixed by #698
Closed

Null Pointer Exception occurs when opening a project #696

vaisakhkannan opened this issue Dec 13, 2024 · 7 comments · Fixed by #698
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@angelozerr
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bug Something isn't working
Milestone
0.9.0

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@vaisakhkannan
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vaisakhkannan commented Dec 13, 2024 •
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When we tested with the latest LSP4IJ nightly build (version 0.9.0-20241212-191252), we encountered an exception in the LSP4IJ plugin. This issue particularly occurs when we close and reopen the same project or switch to a different project.

Image

We believe the exception is related to the Language Servers tab.

Logs in the exception

java.lang.NullPointerException: Cannot invoke "com.redhat.devtools.lsp4ij.settings.ui.SchemaBackedJsonTextField.resetJsonSchema()" because the return value of "com.redhat.devtools.lsp4ij.settings.ui.LanguageServerPanel.getConfiguration()" is null
	at com.redhat.devtools.lsp4ij.settings.ui.LanguageServerPanel.dispose(LanguageServerPanel.java:359)
	at com.redhat.devtools.lsp4ij.settings.LanguageServerView.dispose(LanguageServerView.java:446)
	at com.intellij.openapi.util.ObjectTree.runWithTrace(ObjectTree.java:131)
	at com.intellij.openapi.util.ObjectTree.executeAll(ObjectTree.java:163)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:205)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:193)
	at com.intellij.ui.content.impl.ContentImpl.dispose(ContentImpl.java:276)
	at com.intellij.openapi.util.ObjectTree.runWithTrace(ObjectTree.java:131)
	at com.intellij.openapi.util.ObjectTree.executeAll(ObjectTree.java:163)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:205)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:193)
	at com.intellij.serviceContainer.ComponentManagerImpl.dispose(ComponentManagerImpl.kt:1170)
	at com.intellij.openapi.project.impl.ProjectImpl.dispose(ProjectImpl.kt:331)
	at com.intellij.openapi.util.ObjectTree.runWithTrace(ObjectTree.java:131)
	at com.intellij.openapi.util.ObjectTree.executeAll(ObjectTree.java:163)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:205)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:193)
	at com.intellij.openapi.project.impl.ProjectManagerImpl.closeProject$lambda$15(ProjectManagerImpl.kt:421)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteAction$lambda$5(AnyThreadWriteThreadingSupport.kt:379)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteAction(AnyThreadWriteThreadingSupport.kt:389)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteAction(AnyThreadWriteThreadingSupport.kt:379)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:896)
	at com.intellij.openapi.project.impl.ProjectManagerImpl.closeProject(ProjectManagerImpl.kt:404)
	at com.intellij.openapi.project.impl.ProjectManagerImpl.closeProject$default(ProjectManagerImpl.kt:329)
	at com.intellij.openapi.project.impl.ProjectManagerImpl.closeAndDispose(ProjectManagerImpl.kt:433)
	at com.intellij.ide.actions.CloseProjectsActionBase.actionPerformed$lambda$2$lambda$1(CloseProjectsActionBase.kt:33)
	at com.intellij.openapi.application.WriteIntentReadAction.lambda$run$0(WriteIntentReadAction.java:24)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:128)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:916)
	at com.intellij.openapi.application.WriteIntentReadAction.compute(WriteIntentReadAction.java:55)
	at com.intellij.openapi.application.WriteIntentReadAction.run(WriteIntentReadAction.java:23)
	at com.intellij.ide.actions.CloseProjectsActionBase.actionPerformed(CloseProjectsActionBase.kt:32)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.doPerformActionOrShowPopup(ActionUtil.kt:374)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAwareWithCallbacks$lambda$7(ActionUtil.kt:343)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.performWithActionCallbacks(ActionManagerImpl.kt:1173)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAwareWithCallbacks(ActionUtil.kt:342)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem.performAction$lambda$5(ActionMenuItem.kt:273)
	at com.intellij.openapi.wm.impl.FocusManagerImpl.runOnOwnContext(FocusManagerImpl.java:231)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem.performAction(ActionMenuItem.kt:265)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem._init_$lambda$0(ActionMenuItem.kt:72)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem.fireActionPerformed$lambda$4(ActionMenuItem.kt:103)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:109)
	at com.intellij.openapi.application.TransactionGuardImpl.performUserActivity(TransactionGuardImpl.java:98)
	at com.intellij.openapi.actionSystem.impl.ActionMenuItem.fireActionPerformed(ActionMenuItem.kt:102)
	at com.intellij.ui.plaf.beg.BegMenuItemUI.doClick(BegMenuItemUI.java:521)
	at com.intellij.ui.plaf.beg.BegMenuItemUI$MyMouseInputHandler.mouseReleased(BegMenuItemUI.java:554)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6662)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3394)
	at java.desktop/java.awt.Component.processEvent(Component.java:6427)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5032)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4860)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4963)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4577)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4518)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2810)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4860)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:783)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:728)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:755)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:753)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:752)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:675)
	at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.kt:621)
	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$21(IdeEventQueue.kt:564)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:128)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:564)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$18$lambda$17$lambda$16$lambda$15(IdeEventQueue.kt:355)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:857)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$18$lambda$17$lambda$16(IdeEventQueue.kt:354)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$2$lambda$1(IdeEventQueue.kt:1045)
	at com.intellij.openapi.application.WriteIntentReadAction.lambda$run$0(WriteIntentReadAction.java:24)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:128)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:916)
	at com.intellij.openapi.application.WriteIntentReadAction.compute(WriteIntentReadAction.java:55)
	at com.intellij.openapi.application.WriteIntentReadAction.run(WriteIntentReadAction.java:23)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$2(IdeEventQueue.kt:1045)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$3(IdeEventQueue.kt:1054)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:117)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1054)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$18(IdeEventQueue.kt:349)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:395)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)

When I reviewed the exception logs, I found the line causing the exception, which was added yesterday with this commit.
angelozerr added a commit to angelozerr/lsp4ij that referenced this issue Dec 13, 2024
@angelozerr
fix: Null Pointer Exception occurs when opening a project
e7e6b24 
Fixes redhat-developer#696

Signed-off-by: azerr <azerr@redhat.com>
@angelozerr angelozerr mentioned this issue Dec 13, 2024
Merged
@angelozerr angelozerr added the bug Something isn't working label Dec 13, 2024
@angelozerr angelozerr added this to the 0.9.0 milestone Dec 13, 2024
@angelozerr angelozerr self-assigned this Dec 13, 2024
@angelozerr
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angelozerr commented Dec 13, 2024 •
edited
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Thanks @vaisakhkannan for your having reported the issue. I have fixed it.

I will create soon this morning the release. If you have another issues please create them.

@vaisakhkannan
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@angelozerr , Can we expect another nightly build before release of 0.9.0?

@angelozerr
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Sure, it should be available.

Please give me feedback ASAP.

@vaisakhkannan
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@angelozerr , Does this nightly version 0.9.0-20241213-085236 include this issue fix?

@angelozerr
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Yes it should. Why? You have again the problem?

@vaisakhkannan
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No, we are not encountering the Null Pointer Exception now. Thank you

@angelozerr
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Thanks so much for having reported the issue before the release !

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fix: Null Pointer Exception occurs when opening a project angelozerr/lsp4ij
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@angelozerr @vaisakhkannan