[ ant-contrib-Bugs-1680294 ] ForEach throws OutOfMemoryError

Bugs item #1680294, was opened at 2007-03-13 20:21
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Category: logic
Group: v1.0 (example)
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: ForEach throws OutOfMemoryError

Initial Comment:
I was assign to upgrade an old project pack configuration.In the project build script,the task "foreach" was called many times(in some loops),and it went down at a un-certain time with a java.lang.OutOfMemoryError.I tried to set a eviroment variable "ANT_OPTS=-Xms512m -Xmx1024m" to increase ant's memory usage forcibly and modify class "ForEach"'s source code where it creates and executes tasks as follow,but the error point just went forward a little.I also try to trace the error,the result shows at the construtor of ForEach.class JVM throws the OutOfMemoryError.I hope you can help me out of this trouble,Thank you.
BTW: My machine is Intel pentium 4 3.0GHz Mem:512M*4 JDK:1.4.2_11
Modified ForEach.execute() code as here:
for (int i = 0; i < sz; i++) {
                val = values.elementAt(i);
                ct = createCallTarget();
                p = ct.createParam();
                p.setName(param);

                if (val instanceof File)
                    p.setLocation((File) val);
                else
                    p.setValue((String) val);

                ct.execute();
                System.gc();

            //tasks.addElement(ct);
        }

        /* if (parallel && maxThreads > 1) {
            executeParallel(tasks);
        } else {
            executeSequential(tasks);
        }*/

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