Error on opening .gitignore file

Prerequisites

• Plugin is in the latest version
• Issue was not reported yet
• Stack trace (if provided) contains mobi.hsz.idea.gitignore package name

Description

After updating the plugin to 2.0.0 today, I opened the .gitignore file in my project and the plugin threw an error.

null
java.lang.NullPointerException
	at mobi.hsz.idea.gitignore.util.MatcherUtil.match(MatcherUtil.java:84)
	at mobi.hsz.idea.gitignore.util.Glob$1.visitFile(Glob.java:126)
	at com.intellij.openapi.vfs.VirtualFileVisitor.visitFileEx(VirtualFileVisitor.java:132)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:272)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:304)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:304)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:304)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:304)
	at com.intellij.openapi.vfs.VfsUtilCore.visitChildrenRecursively(VfsUtilCore.java:304)
	at mobi.hsz.idea.gitignore.util.Glob.find(Glob.java:140)
	at mobi.hsz.idea.gitignore.util.Glob.findOne(Glob.java:69)
	at mobi.hsz.idea.gitignore.daemon.IgnoreDirectoryMarkerProvider.getLineMarkerInfo(IgnoreDirectoryMarkerProvider.java:71)
	at com.intellij.codeInsight.daemon.impl.LineMarkersPass.a(LineMarkersPass.java:189)
	at com.intellij.codeInsight.daemon.impl.LineMarkersPass.a(LineMarkersPass.java:111)
	at com.intellij.codeInsight.daemon.impl.Divider.divideInsideAndOutsideInOneRoot(Divider.java:96)
	at com.intellij.codeInsight.daemon.impl.LineMarkersPass.doCollectInformation(LineMarkersPass.java:106)
	at com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation(TextEditorHighlightingPass.java:70)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.c(PassExecutorService.java:438)
	at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1160)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.b(PassExecutorService.java:431)
	at com.intellij.openapi.progress.impl.CoreProgressManager.a(CoreProgressManager.java:548)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:493)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:94)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.d(PassExecutorService.java:430)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.a(PassExecutorService.java:406)
	at com.intellij.openapi.application.impl.ReadMostlyRWLock.executeByImpatientReader(ReadMostlyRWLock.java:142)
	at com.intellij.openapi.application.impl.ApplicationImpl.executeByImpatientReader(ApplicationImpl.java:249)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.run(PassExecutorService.java:404)
	at com.intellij.concurrency.JobLauncherImpl$VoidForkJoinTask$1.exec(JobLauncherImpl.java:165)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

Steps to Reproduce

1. Have existing project with .gitignore file
2. Open the file

Expected behavior: No error

Actual behavior: Error is thrown

Reproduces how often: Only happened once so far.

Versions

Plugin:

2.2.0

IDE:

IntelliJ IDEA 2017.2.3

OS:

Ubuntu 17.04

[hsz]

@Ionaru Thanks for reporting. To be honest - it’s insane that this still happens. I covered this method with as many null checks as possible, but somehow it still has a problem with NPE.

Sorry for that - if it will happen again - let me know and I’ll speed up the next release.

[charlwillia6]

This resolved the error for me, but the file coloring is still not working. And I get warning on every line that states " ‘…’ is never used more…".

This is in a .gitignore file.

Plugin:

2.2.1-RC1

IDE:

Rider 2017.2 EAP

OS:

Windows 10