Bug 562812

Summary:

Two NPEs thorwn during save in some cases

Product:

[Eclipse Project] JDT

Reporter:

Arthur Daussy <arthur.daussy>

Component:

Text

Assignee:

JDT-Text-Inbox <jdt-text-inbox>

Status:

CLOSED DUPLICATE

QA Contact:

Severity:

normal

Priority:

Version:

4.14

Target Milestone:

---

Hardware:

OS:

Windows 10

Whiteboard:

Attachments:

Description	Flags
NPE 1	none
NPE2	none

Description Arthur Daussy

2020-05-05 04:31:09 EDT

Hello,

In some case I get the two following NPEs when editing java files. When I reach a particular state, it prevents me from saving the file and each time I try to save it 2 NPEs are thrown. This state can't be reproduced easily (at least I have not succeeded yet to give you more information). Last time I have encountered it, I was editing the file in "Horizontal Split" mode. I don't know if it is linked because I think I already encountered this state without it.

I'm sorry I can't give more information. I have created this bug so those NPE are traced and maybe someone will recognize them and provide a nice, "step to reproduce".

----
java.lang.NullPointerException
	at org.eclipse.jdt.internal.ui.text.LineComparator.<init>(LineComparator.java:47)
	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility$2.getChangedLineRegions(EditorUtility.java:833)
	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility$2.run(EditorUtility.java:809)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.calculateChangedLineRegions(EditorUtility.java:782)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.commitWorkingCopy(CompilationUnitDocumentProvider.java:1413)
----

----
java.lang.NullPointerException
	at org.eclipse.ui.texteditor.SelectMarkerRulerAction.includesRulerLine(SelectMarkerRulerAction.java:293)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaSelectAnnotationRulerAction.findJavaAnnotation(JavaSelectAnnotationRulerAction.java:160)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaSelectAnnotationRulerAction.update(JavaSelectAnnotationRulerAction.java:111)
	at org.eclipse.ui.texteditor.AbstractRulerActionDelegate.update(AbstractRulerActionDelegate.java:130)
	at org.eclipse.ui.texteditor.AbstractRulerActionDelegate.setActiveEditor(AbstractRulerActionDelegate.java:90)
	at org.eclipse.ui.internal.EditorPluginAction.editorChanged(EditorPluginAction.java:69)
	at org.eclipse.ui.internal.EditorActionBuilder$EditorContribution.editorChanged(EditorActionBuilder.java:78)
----

Complete logs in attachment

Comment 1 Arthur Daussy

2020-05-05 04:31:41 EDT

Created attachment 282700 [details]
NPE 1

Comment 2 Arthur Daussy

2020-05-05 04:32:08 EDT

Created attachment 282701 [details]
NPE2

Comment 3 Arthur Daussy

2020-05-05 04:33:40 EDT

Extra information:

eclipse.application=org.eclipse.ui.ide.workbench
eclipse.buildId=4.14.0.I20191210-0610
eclipse.commands=-os
win32
-ws
win32
-arch
x86_64
-product
org.eclipse.epp.package.dsl.product
-vm
C:/dev/java/jdk-11.0.4+11/bin\client\jvm.dll

Comment 4 Noopur Gupta

2020-05-05 04:48:22 EDT


*** This bug has been marked as a duplicate of bug 560525 ***