This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.

Bug 189589 - NullPointerException: The connection parameter cannot be null
Summary: NullPointerException: The connection parameter cannot be null
Status: RESOLVED FIXED
Alias: None
Product: javaee
Classification: Unclassified
Component: Persistence (show other bugs)
Version: 6.x
Hardware: All All
: P3 normal (vote)
Assignee: Sergey Petrov
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-08-17 11:53 UTC by Jan Lahoda
Modified: 2011-04-09 08:39 UTC (History)
0 users

See Also:
Issue Type: DEFECT
Exception Reporter: 171985

Attachments
stacktrace (6.89 KB, text/plain)
2010-08-17 11:53 UTC, Jan Lahoda 		Details
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Jan Lahoda 2010-08-17 11:53:21 UTC 
Build: NetBeans IDE Dev (Build 100817-92f1f1276ea7)
VM: Java HotSpot(TM) Client VM, 1.6.0_05-ea-b04, Java(TM) SE Runtime Environment, 1.6.0_05-ea-b04
OS: Linux

Stacktrace: 
java.lang.NullPointerException: The connection parameter cannot be null
   at org.openide.util.Parameters.notNull(Parameters.java:89)
   at org.netbeans.modules.j2ee.persistence.provider.ProviderUtil.buildPersistenceUnit(ProviderUtil.java:328)
   at org.netbeans.modules.j2ee.persistence.wizard.Util.buildPersistenceUnitUsingData(Util.java:467)
   at org.netbeans.modules.j2ee.persistence.wizard.fromdb.RelatedCMPWizard.instantiate(RelatedCMPWizard.java:279)
   at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:591)
   at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:412)
Comment 1 Jan Lahoda 2010-08-17 11:53:25 UTC 
Created attachment 101447 [details]
stacktrace
Comment 2 Sergey Petrov 2010-08-17 12:17:36 UTC 
Can you provide some details? How persistence unit was created?
Comment 3 Jan Lahoda 2010-08-17 12:26:40 UTC 
I placed the schema from #187653 to default package of an J2SE project, selected New/Entity Classes from Database from the popup menu on the project. The section radio button was preselected (Database Schema), pressed Add All, next, "foo" into "Package:", Finish. Happens to me always.
Comment 4 Sergey Petrov 2010-08-17 12:32:34 UTC 
ok, thanks, I guess as a workaround you may need to have at least one database connection registered in nb, do you have any?
Comment 5 Jan Lahoda 2010-08-17 13:43:06 UTC 
I do not have any registered DB connections.
Comment 6 Sergey Petrov 2010-08-31 14:54:42 UTC 
thanks, need to open some dialog for connection selection/creation in this case if pu creation is selected, or may be block 'create pu' checkbox as simplest fix in this case, may be with warning/hint message.
Comment 7 Sergey Petrov 2011-04-08 14:36:14 UTC 
http://hg.netbeans.org/web-main/rev/2ec5e32fac64 pu will not be created now
Comment 8 Quality Engineering 2011-04-09 08:39:24 UTC 
Integrated into 'main-golden', will be available in build *201104090401* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
Changeset: http://hg.netbeans.org/main/rev/2ec5e32fac64
User: Sergey B. Petrov <sj-nb@netbeans.org>
Log: fix #189589 just remove create pu checkbox if pu creation can't be done without additional steps missed in entities from db wizard