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http://issues.apache.org/bugzilla/show_bug.cgi?id=43324

           Summary: Nested macrodefs result in StackOverflowError
           Product: Ant
           Version: 1.7.0
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: [EMAIL PROTECTED]


When using macrodefs within macrodefs a StackOverflow can occur.

The following is a snippet from running an effected build with debug output on:

BUILD FAILED
/Users/edalquist/Desktop/build.xml:9: The following error occurred while
executing this line:
/Users/edalquist/Desktop/build.xml:40: The following error occurred while
executing this line:
/Users/edalquist/Desktop/build.xml:27: java.lang.StackOverflowError
        at
org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:541)
        at 
org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:394)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        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:585)
        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.apache.tools.ant.Project.executeTargets(Project.java:1181)
        at org.apache.tools.ant.Main.runBuild(Main.java:698)
        at org.apache.tools.ant.Main.startAnt(Main.java:199)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
Caused by: /Users/edalquist/Desktop/build.xml:40: The following error occurred
while executing this line:
/Users/edalquist/Desktop/build.xml:27: java.lang.StackOverflowError
        at
org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:541)
        at 
org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:394)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        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:585)
        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.taskdefs.Sequential.execute(Sequential.java:62)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        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:585)
        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.taskdefs.MacroInstance.execute(MacroInstance.java:391)
        ... 17 more
Caused by: /Users/edalquist/Desktop/build.xml:27: java.lang.StackOverflowError
        at 
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:115)
        at org.apache.tools.ant.Task.perform(Task.java:348)
        at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:62)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
        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:585)
        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.taskdefs.MacroInstance.execute(MacroInstance.java:391)
        ... 33 more
Caused by: java.lang.StackOverflowError
        at 
org.apache.tools.ant.taskdefs.MacroInstance.macroSubs(MacroInstance.java:182)
        at 
org.apache.tools.ant.taskdefs.MacroInstance.copy(MacroInstance.java:271)
        at 
org.apache.tools.ant.taskdefs.MacroInstance.copy(MacroInstance.java:320)
...

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