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Date: Thu, 3 Apr 2008 07:26:24 -0700 (PDT)
From: "Xavier Hanin (JIRA)" <jira@apache.org>
To: notifications@ant.apache.org
Subject: [jira] Resolved: (IVY-774) NullPointerException during resolve when
 resolver references undefined cache
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     [ https://issues.apache.org/jira/browse/IVY-774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xavier Hanin resolved IVY-774.
------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 2.0)
                   2.0-RC1

Now that settings are validated after being parsed, it's no longer possible to reference a non existing cache, thus this NPE is not possible anymore with a validated resolver.

> NullPointerException during resolve when resolver references undefined cache
> ----------------------------------------------------------------------------
>
>                 Key: IVY-774
>                 URL: https://issues.apache.org/jira/browse/IVY-774
>             Project: Ivy
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0.0-beta-2
>         Environment: Windows/JDK1.5
>            Reporter: Carlton Brown
>            Priority: Minor
>             Fix For: 2.0-RC1
>
>
> If a resolver references a cache that is not already defined, an NPE occurs.   Such as:
> <ibiblio cache="MyCache">
> ...
> </ibiblio>
> If MyCache is not defined in <caches> then you get something like this:
> [ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
> [ivy:resolve] ::          UNRESOLVED DEPENDENCIES         ::
> [ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
> [ivy:resolve] :: commons-lang#commons-lang;2.0: java.lang.NullPointerException at org.apache.ivy.core.resolve.IvyNode.loadData(IvyNode.java:230)
> [ivy:resolve] :: junit#junit;3.8.1: java.lang.NullPointerException at org.apache.ivy.core.resolve.IvyNode.loadData(IvyNode.java:230)
> [ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
> [ivy:resolve] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
> Class org.apache.tools.ant.BuildEvent loaded from parent loader (parentFirst)
> BUILD FAILED
> C:\allworkspaces\ivy-poc\hellorm\hello-B\src\build-wrapper.xml:53: impossible to resolve dependencies:
> 	resolve failed - see output for details
> 	at org.apache.ivy.ant.IvyResolve.doExecute(IvyResolve.java:315)
> 	at org.apache.ivy.ant.IvyTask.execute(IvyTask.java:275)
> 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> 	at java.lang.reflect.Method.invoke(Unknown Source)
> 	at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
> 	at org.apache.tools.ant.Task.perform(Task.java:348)
> 	at org.apache.tools.ant.Target.execute(Target.java:357)
> 	at org.apache.tools.ant.Target.performTasks(Target.java:385)
> 	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
> 	at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
> 	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
> 	at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
> 	at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
> 	at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
> 	at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
> Caused by: resolve failed - see output for details
> 	at org.apache.ivy.ant.IvyResolve.doExecute(IvyResolve.java:237)
> 	... 17 more
> --- Nested Exception ---
> resolve failed - see output for details
> 	at org.apache.ivy.ant.IvyResolve.doExecute(IvyResolve.java:237)
> 	at org.apache.ivy.ant.IvyTask.execute(IvyTask.java:275)
> 	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> 	at java.lang.reflect.Method.invoke(Unknown Source)
> 	at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
> 	at org.apache.tools.ant.Task.perform(Task.java:348)
> 	at org.apache.tools.ant.Target.execute(Target.java:357)
> 	at org.apache.tools.ant.Target.performTasks(Target.java:385)
> 	at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
> 	at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
> 	at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
> 	at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
> 	at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
> 	at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
> 	at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
> Total time: 3 seconds

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