[Bug 58336] New: Race condition using presetdef with parallel

[bu...@apache.org]

https://bz.apache.org/bugzilla/show_bug.cgi?id=58336

            Bug ID: 58336
           Summary: Race condition using presetdef with parallel
           Product: Ant
           Version: 1.9.4
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core tasks
          Assignee: notifications@ant.apache.org
          Reporter: frank.wagner@fr.ibm.com

Created attachment 33070
  --> https://bz.apache.org/bugzilla/attachment.cgi?id=33070&action=edit
Reproducing race condition with java and exec

There is a race condition when using presetdef with parallel.

Using presetdef to set an environment variable for java/exec tasks used in
parallel will sometimes raise
"key and value must be specified for environment variables."

     [java] key and value must be specified for environment variables.
     [java]     at
org.apache.tools.ant.types.Environment$Variable.validate(Environment.java:128)
     [java]     at
org.apache.tools.ant.types.Environment$Variable.getContent(Environment.java:116)
     [java]     at
org.apache.tools.ant.types.Environment.getVariables(Environment.java:162)
     [java]     at
org.apache.tools.ant.taskdefs.Java.setupEnvironment(Java.java:835)
     [java]     at
org.apache.tools.ant.taskdefs.Java.setupExecutable(Java.java:826)
     [java]     at org.apache.tools.ant.taskdefs.Java.fork(Java.java:788)
     [java]     at
org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:214)
     [java]     at
org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:135)
     [java]     at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108)
     [java]     at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
     [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     [java]     at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
     [java]     at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     [java]     at java.lang.reflect.Method.invoke(Method.java:497)
     [java]     at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
     [java]     at org.apache.tools.ant.Task.perform(Task.java:348)
     [java]     at
org.apache.tools.ant.taskdefs.Parallel$TaskRunnable.run(Parallel.java:453)
     [java]     at java.lang.Thread.run(Thread.java:745)

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[Bug 58336] Race condition using presetdef with parallel

[bu...@apache.org]

https://bz.apache.org/bugzilla/show_bug.cgi?id=58336

--- Comment #1 from frank.wagner@fr.ibm.com ---
Created attachment 33071
  --> https://bz.apache.org/bugzilla/attachment.cgi?id=33071&action=edit
A possible fix it is to 'clone' runtime configurables when applying preset.

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