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Bug 84198

Summary:	Refreshing results of 'Find Usages' leads to NPE
Product:	xml	Reporter:	Andrei Chistiakov <ca-nb>
Component:	Schema Tools	Assignee:	Nam Nguyen <nnguyen>
Status:	VERIFIED FIXED
Severity:	blocker	CC:	cwebster, htt, ivansidorkin, kozlov
Priority:	P1
Version:	5.x
Hardware:	PC
OS:	Windows XP
Issue Type:	DEFECT	Exception Reporter:

Description Andrei Chistiakov 2006-09-05 10:33:12 UTC

Reproduced in build 060903 (JDK 1.6 Beta 2)

To reproduce the bug:

- open the following schema
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            targetNamespace="http://xml.netbeans.org/schema/newXMLSchema"
            xmlns:tns="http://xml.netbeans.org/schema/newXMLSchema"
            elementFormDefault="qualified">
    <xsd:complexType name="newComplexType"/>
    <xsd:element name="newElement" type="tns:newComplexType"/>
</xsd:schema>
- in Schema view select newComplexType and call 'Find Usages';
- after the results are shown, delete newComplexType from the schema using
'Delete' popup menu command;
- push 'Refresh' button in 'Find Usages' window.

java.lang.NullPointerException
	at org.netbeans.modules.xml.refactoring.UsageSet.addModelListener(UsageSet.java:66)
	at org.netbeans.modules.xml.refactoring.UsageSet.<init>(UsageSet.java:60)
	at
org.netbeans.modules.xml.refactoring.FindUsageResult.get(FindUsageResult.java:98)
	at
org.netbeans.modules.xml.refactoring.ui.readers.WhereUsedReader.loadGraph(WhereUsedReader.java:251)
	at
org.netbeans.modules.xml.refactoring.ui.views.WhereUsedView.createGraph(WhereUsedView.java:173)
	at
org.netbeans.modules.xml.refactoring.ui.views.WhereUsedView.createModels(WhereUsedView.java:161)
	at
org.netbeans.modules.xml.refactoring.ui.j.ui.RefactoringPanel$6.run(RefactoringPanel.java:771)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:499)
[catch] at
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:932)

Comment 1 Nam Nguyen 2006-09-08 02:20:15 UTC

Fixed.

/cvs/xml/refactoring/src/org/netbeans/modules/xml/refactoring/Attic/RefactorRequest.java,v
 <--  RefactorRequest.java
new revision: 1.1.2.11; previous revision: 1.1.2.10
/cvs/xml/refactoring/src/org/netbeans/modules/xml/refactoring/ui/j/spi/ui/Attic/DeleteRefactoringUI.java,v
 <--  DeleteRefactoringUI.java
new revision: 1.1.2.6; previous revision: 1.1.2.5
/cvs/xml/refactoring/src/org/netbeans/modules/xml/refactoring/ui/j/spi/ui/Attic/FileRenameRefactoringUI.java,v
 <--  FileRenameRefactoringUI.java
new revision: 1.1.2.6; previous revision: 1.1.2.5
/cvs/xml/refactoring/src/org/netbeans/modules/xml/refactoring/ui/j/spi/ui/Attic/RenameRefactoringUI.java,v
 <--  RenameRefactoringUI.java
new revision: 1.1.2.12; previous revision: 1.1.2.11
/cvs/xml/refactoring/src/org/netbeans/modules/xml/refactoring/ui/j/spi/ui/Attic/WhereUsedQueryUI.java,v
 <--  WhereUsedQueryUI.java
new revision: 1.1.2.5; previous revision: 1.1.2.4
/cvs/xml/refactoring/src/org/netbeans/modules/xml/refactoring/ui/j/spi/ui/Attic/RefactoringUI.java,v
 <--  RefactoringUI.java
new revision: 1.1.2.4; previous revision: 1.1.2.3
/cvs/xml/refactoring/src/org/netbeans/modules/xml/refactoring/ui/j/ui/Attic/RefactoringPanel.java,v
 <--  RefactoringPanel.java
new revision: 1.1.2.18; previous revision: 1.1.2.17

Comment 2 Andrei Chistiakov 2006-09-11 13:42:52 UTC

Still reproducible in build 060910.
Notice: please use the button with 'Refresh the Schema Data' tooltip at the last
step.

Comment 3 Nam Nguyen 2006-09-11 15:55:43 UTC

OK, I guess I misread the test case.  I tested and fixed the test case with
deleting the schema instead of just the target component.  Anyway, this is
similar, the refactoring panel should be closed in this case as well.  Working
on this now.

Comment 4 Nam Nguyen 2006-09-11 17:13:16 UTC

Also fixed for target component deleted test case.

/cvs/xml/refactoring/src/org/netbeans/modules/xml/refactoring/ui/j/ui/Attic/RefactoringPanel.java,v
 <--  RefactoringPanel.java
new revision: 1.1.2.19; previous revision: 1.1.2.18

Comment 5 Andrei Chistiakov 2006-09-12 10:19:39 UTC

Verified in build 060911_2.