Random Error

[gayanper]

java.lang.NullPointerException
	at java.base/java.util.Objects.requireNonNull(Objects.java:222)
	at java.base/java.util.Optional.of(Optional.java:111)
	at org.gap.eclipse.jdt.annotation.RecursiveASTVistor.visit(RecursiveASTVistor.java:25)
	at org.eclipse.jdt.core.dom.MethodDeclaration.accept0(MethodDeclaration.java:674)
	at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
	at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3042)
	at org.eclipse.jdt.core.dom.TypeDeclaration.accept0(TypeDeclaration.java:447)
	at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
	at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:3042)
	at org.eclipse.jdt.core.dom.CompilationUnit.accept0(CompilationUnit.java:258)
	at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2971)
	at org.gap.eclipse.jdt.annotation.MarkerParticipant.reconcile(MarkerParticipant.java:22)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation$1.run(ReconcileWorkingCopyOperation.java:262)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.notifyParticipants(ReconcileWorkingCopyOperation.java:247)
	at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:99)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:736)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:802)
	at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1315)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:131)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.access$0(JavaReconcilingStrategy.java:113)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:93)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:90)
	at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:165)
	at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:81)
	at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:85)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:72)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:210)