The following issue has been updated:
Updater: Paddu Ramachandran (mailto:[EMAIL PROTECTED])
Date: Mon, 25 Jul 2005 12:44 PM
Comment:
Patch for egineStarted() method of HibernateSubTask that avoids the NPE by
performing a null check
Changes:
Attachment changed to patch.diff
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For a full history of the issue, see:
http://opensource.atlassian.com/projects/xdoclet/browse/XDT-1484?page=history
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View the issue:
http://opensource.atlassian.com/projects/xdoclet/browse/XDT-1484
Here is an overview of the issue:
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Key: XDT-1484
Summary: Specifying "destinationFile" attribute in the <hibernate> ant task
causes a NullPointerException
Type: Bug
Status: Open
Priority: Major
Original Estimate: Unknown
Time Spent: Unknown
Remaining: Unknown
Project: XDoclet
Components:
Hibernate Module
Versions:
1.2.3
Assignee: xdoclet-devel (Use for new issues)
Reporter: Paddu Ramachandran
Created: Mon, 25 Jul 2005 12:34 PM
Updated: Mon, 25 Jul 2005 12:44 PM
Environment: Windows XP Pro SP2, Java 1.4.2_08, Ant 1.6.5, Eclipse 3.1
Description:
when you use Xdoclet 1.2.3 and the <hibernatedoclet> ant task to generate
Hibernate 3.0 mapping files from POJOs, setting the destinationFile attribute
on the <hibernate> sub-task causes a NullPointerException in
xdoclet.modules.hibernate.HibernateSubTask.engineStarted(HibernateSubTask.java:149).
The cause of the problem seems to be that the current class stack is never
populated when the destinationFile attribute is set, leading to the NPE, when
the engineStarted() method attempts to access the top frame of the current
class stack.
Details of the NPE:
[hibernatedoclet] java.lang.NullPointerException
[hibernatedoclet] at
xdoclet.modules.hibernate.HibernateSubTask.engineStarted(HibernateSubTask.java:149)
[hibernatedoclet] at
xdoclet.TemplateSubTask.startEngine(TemplateSubTask.java:557)
[hibernatedoclet] at
xdoclet.TemplateSubTask.startProcessForAll(TemplateSubTask.java:618)
[hibernatedoclet] at
xdoclet.TemplateSubTask.startProcess(TemplateSubTask.java:599)
[hibernatedoclet] at xdoclet.XmlSubTask.startProcess(XmlSubTask.java:227)
[hibernatedoclet] at
xdoclet.modules.hibernate.HibernateSubTask.execute(HibernateSubTask.java:136)
[hibernatedoclet] at xdoclet.XDocletMain.start(XDocletMain.java:48)
[hibernatedoclet] at xdoclet.DocletTask.start(DocletTask.java:468)
[hibernatedoclet] at xjavadoc.ant.XJavadocTask.execute(XJavadocTask.java:105)
[hibernatedoclet] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
[hibernatedoclet] at org.apache.tools.ant.Task.perform(Task.java:364)
[hibernatedoclet] at org.apache.tools.ant.Target.execute(Target.java:341)
[hibernatedoclet] at org.apache.tools.ant.Target.performTasks(Target.java:369)
[hibernatedoclet] at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
[hibernatedoclet] at
org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:37)
[hibernatedoclet] at
org.eclipse.ant.internal.ui.antsupport.EclipseSingleCheckExecutor.executeTargets(EclipseSingleCheckExecutor.java:30)
[hibernatedoclet] at
org.apache.tools.ant.Project.executeTargets(Project.java:1068)
[hibernatedoclet] at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:382)
[hibernatedoclet] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
[hibernatedoclet] at org.apache.tools.ant.Task.perform(Task.java:364)
[hibernatedoclet] at org.apache.tools.ant.Target.execute(Target.java:341)
[hibernatedoclet] at org.apache.tools.ant.Target.performTasks(Target.java:369)
[hibernatedoclet] at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
[hibernatedoclet] at
org.apache.tools.ant.Project.executeTarget(Project.java:1185)
[hibernatedoclet] at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
[hibernatedoclet] at
org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
[hibernatedoclet] at
org.apache.tools.ant.Project.executeTargets(Project.java:1068)
[hibernatedoclet] at
org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
[hibernatedoclet] at
org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
Ant code to reproduce:
<!-- Generate hibernate mappings -->
<path id="xdoclet.lib.path">
<fileset dir="${lib.home}">
<include name="xdoclet*.jar"/>
<include name="xjavadoc*.jar"/>
<include name="commons*.jar"/>
</fileset>
</path>
<taskdef name="hibernatedoclet"
classname="xdoclet.modules.hibernate.HibernateDocletTask"
classpathref="xdoclet.lib.path"/>
<target name="hibernate-map">
<echo>Generating hibernate maps</echo>
<hibernatedoclet
destdir="${src.home}"
excludedtags="@version,@author,@todo"
verbose="true">
<fileset dir="${src.home}">
<include name="**/*.java"/>
</fileset>
<hibernate version="3.0"
destinationFile="out.hbm.xml"
/>
</hibernatedoclet>
</target>
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