public String buildPatchClasspathBasedOnCurrentClassLoader(Logger logger) {
		URL[] urls = getClassPaths(AbstractGrinderClassPathProcessor.class.getClassLoader());
		StringBuilder builder = new StringBuilder();
		for (URL each : urls) {
			builder.append(decodePathWithUTF8(each.getFile())).append(File.pathSeparator);
		}
		return filterPatchClassPath(builder.toString(), logger);
	}
Construct the patch classPath from current classLoader.

@param logger logger
@return classpath optimized for grinder.
ngrinder-core/src/main/java/net/grinder/util/AbstractGrinderClassPathProcessor.java