NullPointerException in RubyMine 2019.1

[Zyndoras]

Hi there!

This one popped up a few times today, so i thought i'll let you know:

In file: file:///PROJECT/app/models/some_model.rb

java.lang.NullPointerException
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.HashKeyParamDefDelegate.a(HashKeyParamDefDelegate.java:55)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.HashKeyParamDefDelegate.a(HashKeyParamDefDelegate.java:41)
	at org.jetbrains.plugins.ruby.rails.codeInsight.paramDefs.MigrationFieldRefParam.processAllVariants(MigrationFieldRefParam.java:58)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.HashKeyParamDefDelegate.hasKey(HashKeyParamDefDelegate.java:39)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.matcher.ParamDefHash.match(ParamDefHash.java:75)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.matcher.ParamDefOr.match(ParamDefOr.java:24)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.matcher.ParamDefSeq.match(ParamDefSeq.java:31)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.matcher.ParamDefSeq.match(ParamDefSeq.java:31)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.matcher.ParamDefMatcher.match(ParamDefMatcher.java:103)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.matcher.ParamDefMatcher.match(ParamDefMatcher.java:37)
	at org.jetbrains.plugins.ruby.ruby.codeInsight.paramDefs.matcher.ParamDefMatcher.createParamDefReference(ParamDefMatcher.java:120)
	at org.jetbrains.plugins.ruby.ruby.lang.psi.ruby19.impl.RAssocKeyImpl.getReferenceEx(RAssocKeyImpl.java:48)
	at org.jetbrains.plugins.ruby.ruby.lang.psi.ruby19.impl.RAssocKeyImpl.a(RAssocKeyImpl.java:42)
	at com.intellij.psi.util.CachedValuesManager.lambda$getCachedValue$0(CachedValuesManager.java:148)
	at com.intellij.psi.impl.PsiCachedValueImpl.doCompute(PsiCachedValueImpl.java:49)
	at com.intellij.util.CachedValueBase.lambda$getValueWithLock$0(CachedValueBase.java:236)
	at com.intellij.openapi.util.RecursionManager$1.doPreventingRecursion(RecursionManager.java:116)
	at com.intellij.util.CachedValueBase.getValueWithLock(CachedValueBase.java:237)
	at com.intellij.psi.impl.PsiCachedValueImpl.getValue(PsiCachedValueImpl.java:38)
	at com.intellij.util.CachedValuesManagerImpl.getCachedValueFromExHolder(CachedValuesManagerImpl.java:72)
	at com.intellij.util.CachedValuesManagerImpl.getCachedValue(CachedValuesManagerImpl.java:45)
	at com.intellij.psi.util.CachedValuesManager.getCachedValue(CachedValuesManager.java:147)
	at com.intellij.psi.util.CachedValuesManager.getCachedValue(CachedValuesManager.java:129)
	at org.jetbrains.plugins.ruby.ruby.lang.psi.ruby19.impl.RAssocKeyImpl.getReference(RAssocKeyImpl.java:42)
	at com.intellij.psi.impl.SharedPsiElementImplUtil.getReferences(SharedPsiElementImplUtil.java:77)
	at com.intellij.psi.impl.PsiElementBase.getReferences(PsiElementBase.java:82)
	at com.intellij.codeInsight.highlighting.HyperlinkAnnotator.annotate(HyperlinkAnnotator.java:28)
	at com.intellij.codeInsight.daemon.impl.DefaultHighlightVisitor.runAnnotators(DefaultHighlightVisitor.java:120)
	at com.intellij.codeInsight.daemon.impl.DefaultHighlightVisitor.visit(DefaultHighlightVisitor.java:87)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.runVisitors(GeneralHighlightingPass.java:351)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.lambda$collectHighlights$5(GeneralHighlightingPass.java:284)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.analyzeByVisitors(GeneralHighlightingPass.java:311)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.lambda$analyzeByVisitors$6(GeneralHighlightingPass.java:314)
	at com.github.izhangzhihao.rainbow.brackets.visitor.RainbowHighlightVisitor.analyze(RainbowHighlightVisitor.kt:36)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.analyzeByVisitors(GeneralHighlightingPass.java:314)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.lambda$analyzeByVisitors$6(GeneralHighlightingPass.java:314)
	at com.intellij.codeInsight.daemon.impl.DefaultHighlightVisitor.analyze(DefaultHighlightVisitor.java:71)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.analyzeByVisitors(GeneralHighlightingPass.java:314)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.collectHighlights(GeneralHighlightingPass.java:281)
	at com.intellij.codeInsight.daemon.impl.GeneralHighlightingPass.collectInformationWithProgress(GeneralHighlightingPass.java:225)
	at com.intellij.codeInsight.daemon.impl.ProgressableTextEditorHighlightingPass.doCollectInformation(ProgressableTextEditorHighlightingPass.java:84)
	at com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation(TextEditorHighlightingPass.java:69)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$null$1(PassExecutorService.java:430)
	at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1166)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$doRun$2(PassExecutorService.java:423)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:586)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:532)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:86)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.doRun(PassExecutorService.java:422)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$run$0(PassExecutorService.java:398)
	at com.intellij.openapi.application.impl.ReadMostlyRWLock.executeByImpatientReader(ReadMostlyRWLock.java:164)
	at com.intellij.openapi.application.impl.ApplicationImpl.executeByImpatientReader(ApplicationImpl.java:218)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.run(PassExecutorService.java:396)
	at com.intellij.concurrency.JobLauncherImpl$VoidForkJoinTask$1.exec(JobLauncherImpl.java:174)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

• Plugin version: 5.16
• IDE:

RubyMine 2019.1
Build #RM-191.6183.108, built on April 1, 2019
JRE: 1.8.0_202-release-1483-b39 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Linux 4.15.0-47-generic