return ret;
return ret.trim();
    public String getVMArguments(ILaunchConfiguration configuration)        throws CoreException {        String ret = "";        Map vmParameters = configuration.getAttribute(ICougaarLaunchConfigurationConstants.ATTR_COUGAAR_VM_PARAMETERS,                new HashMap());        if (vmParameters.size() != 0) {            Iterator iterator = vmParameters.keySet().iterator();            while (iterator.hasNext()) {                String next = (String) iterator.next();                if (next.equals("-classpath")) {                    ret += (next + " " + (String) vmParameters.get(next) + " ");                } else if (next.indexOf("-Xbootclasspath") > -1) {                    ret += ((String) vmParameters.get(next) + " ");                } else {                    ret += (next + "=" + (String) vmParameters.get(next) + " ");                }            }        }        return ret;    }