java.lang.OutOfMemoryError

["Eric Bodden" <eric@bodden.de>]

Hi!

Could it be that invoking CHA (with preparation for VTA, means all
ContextClasses set to LibraryClasses) uses more than 100MB RAM on a
simple Hello World program? Just because I tried that today and first it
took several minutes and after that the thread died with a
java.lang.OutOfMemoryError... When I started the program, the task
manager told me I had around 170MB physical RAM available. At the point
I start CHA (after laoding the classes) there were still 140MB
available.

Thanks,
Eric

P.S. Here my test code:
	public static void main(String argv[]) throws Exception{

            System.out.println(new java.util.Date() + " setting
classpath");
	
soot.Scene.v().setSootClassPath("D:\\Apps\\Coding\\Java\\J2SDK\\sdk1.4.1
_01\\jre\\lib\\rt.jar;.");

            System.out.println(new java.util.Date() + " loading test
class");
		soot.Scene.v().loadClassAndSupport( "Hello"
).setApplicationClass();

            System.out.println(new java.util.Date() + " changing to
libary classes");
		java.util.Iterator contextClassesIt =
Scene.v().getContextClasses().snapshotIterator();
		while (contextClassesIt.hasNext())
	
((SootClass)contextClassesIt.next()).setLibraryClass();

            System.out.println(new java.util.Date() + " starting CHA");
		InvokeGraph graph =
ClassHierarchyAnalysis.newInvokeGraph();

            System.out.println(new java.util.Date() + " starting VTA");
		VariableTypeAnalysis VTA = new VariableTypeAnalysis(
graph );

            System.out.println(new java.util.Date() + " trimming
Graph");
            VTA.trimActiveInvokeGraph();

	}

------------------------------------------------------------
Eric Bodden
University of Kent at Canterbury