| Summary: | calling antcall from <script> throws a java.lang.NullPointerException | ||
|---|---|---|---|
| Product: | Ant | Reporter: | Antoine "hashar" Musso <hashar> |
| Component: | Optional Tasks | Assignee: | Ant Notifications List <notifications> |
| Status: | NEW --- | ||
| Severity: | normal | ||
| Priority: | P2 | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Hardware: | All | ||
| OS: | All | ||
| Attachments: |
working build file
failing build file |
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I found a bug report in Groovy detailing a similar issue http://jira.codehaus.org/browse/GROOVY-1506 . The attached patch by Andreas Sahlbach fixed the groovy issue by assigning an owner to a newly created task. So I have gone ahead and added: task.setOwningTarget( self.getOwningTarget() ); That fixed the issue. I have put the original script and the fixed one in gist 3636007 so other people can play with. Final script is below: <project default="main"> <target name="main"> <script language="javascript"> <![CDATA[ task = project.createTask( 'macro' ); if( task.getOwningTarget() == null ) { task.log( "Assigning an owner ..." ); task.setOwningTarget( self.getOwningTarget() ); task.log( "Task: " + task.getOwningTarget() ); } try { task.execute(); } catch(err) { task.log( "Execution error: " + err.message ); } ]]></script> </target> <macrodef name="macro"> <sequential> <antcall target="antcall" /> </sequential> </macrodef> <target name="antcall"> <echo>[antcall] succeed</echo> </target> </project> The resulting execution is: $ ant Buildfile: /Users/amusso/ant/bug/build.xml main: [macro] Assigning an owner ... [macro] Task: main antcall: [echo] [antcall] succeed BUILD SUCCESSFUL Total time: 0 seconds \O/ See also: http://stackoverflow.com/questions/12280295 Source code: https://gist.github.com/3636007 To clone the build script: git clone git://gist.github.com/3636007.git bug53831 git checkout 9e686eb # failing build.xml git checkout 3bb9964 # working file Created attachment 29334 [details]
working build file
Created attachment 29335 [details]
failing build file
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In the ant 1.8.2 build system, I am having a javascript that rely on an <antcall/>. That causes me a java.lang.NullPointerException which points to antcall. <project default="main"> <target name="main"> <script language="javascript"> <![CDATA[ task = project.createTask( 'macro' ); task.execute(); ]]></script> </target> <macrodef name="macro"> <sequential> <antcall target="antcall" /> </sequential> </macrodef> <target name="antcall"> <echo>[antcall] succeed</echo> </target> </project> build.xml:11: java.lang.NullPointerException( #3 ... ). The stacktrace just talk about RhinoScriptEngine, not sure that is any helpful at com.sun.script.javascript.RhinoScriptEngine.eval(RhinoScriptEngine.java:153) at com.sun.script.javascript.RhinoScriptEngine.eval(RhinoScriptEngine.java:167) at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:247) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.tools.ant.util.ReflectUtil.invoke(ReflectUtil.java:108) at org.apache.tools.ant.util.ReflectWrapper.invoke(ReflectWrapper.java:81) at org.apache.tools.ant.util.optional.JavaxScriptRunner.evaluateScript(JavaxScriptRunner.java:103) at org.apache.tools.ant.util.optional.JavaxScriptRunner.executeScript(JavaxScriptRunner.java:67) at org.apache.tools.ant.taskdefs.optional.Script.execute(Script.java:52) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106) at org.apache.tools.ant.Task.perform(Task.java:348) at org.apache.tools.ant.Target.execute(Target.java:390) at org.apache.tools.ant.Target.performTasks(Target.java:411) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399) at org.apache.tools.ant.Project.executeTarget(Project.java:1368) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41) at org.apache.tools.ant.Project.executeTargets(Project.java:1251) at org.apache.tools.ant.Main.runBuild(Main.java:809) at org.apache.tools.ant.Main.startAnt(Main.java:217) at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280) at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)