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Bug 235734

Summary:	NullPointerException at org.netbeans.modules.form.j2ee.QueryResultListCreator.getJavaCreationCode
Product:	guibuilder	Reporter:	palman
Component:	Code	Assignee:	issues@guibuilder <issues>
Status:	RESOLVED FIXED
Severity:	normal	Keywords:	7.4_HR_FIX
Priority:	P1
Version:	7.4
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:	203724
Attachments:	stacktrace

Description palman 2013-09-10 07:18:27 UTC

Build: NetBeans IDE Dev (Build 201309060001)
VM: Java HotSpot(TM) 64-Bit Server VM, 23.25-b01, Java(TM) SE Runtime Environment, 1.7.0_25-b15
OS: Mac OS X

User Comments:
palman: custome creation of code




Stacktrace: 
java.lang.NullPointerException
   at org.netbeans.modules.form.j2ee.QueryResultListCreator.getJavaCreationCode(QueryResultListCreator.java:139)
   at org.netbeans.modules.form.JavaCodeGenerator.generateComponentCreate(JavaCodeGenerator.java:1509)
   at org.netbeans.modules.form.JavaCodeGenerator.addCreateCode(JavaCodeGenerator.java:1164)
   at org.netbeans.modules.form.JavaCodeGenerator.regenerateInitComponents(JavaCodeGenerator.java:1016)
   at org.netbeans.modules.form.JavaCodeGenerator.regenerateCode(JavaCodeGenerator.java:3493)
   at org.netbeans.modules.form.RADComponent.rename(RADComponent.java:544)

Comment 1 palman 2013-09-10 07:18:29 UTC

Created attachment 139871 [details]
stacktrace

Comment 2 Tomas Pavek 2013-09-10 16:31:12 UTC

Caused accidentally in 7c190d9e604c by introducing new method parameters when one of them (propNames) now hides a field of the same name that was used so far, but now the parameter is used instead which is always null. (It's a shame there's no warning in java editor about this.) This makes the JPA-related components unusable, code generation always fails when there is any property set.

Fixed by making the field name different from the local parameter name, i.e. returning to previous correct behavior.

http://hg.netbeans.org/jet-main/rev/a3f28af28d8a

Comment 3 Tomas Pavek 2013-09-10 16:53:06 UTC

Can be tested simply by adding e.g. the 'Query' component from palette (Java Persistence category) to a form, setting the query property to anything and then switching the form to Source - which invoke code generation. It fails before this fix.

Comment 4 Tomas Pavek 2013-09-11 08:38:36 UTC

Transplanted to release74:
http://hg.netbeans.org/releases/rev/11d77bb7bf30