private String getForeMostClassPath(Properties properties, AbstractLanguageHandler handler, Logger logger) {
		String systemClassPath = properties.getProperty("java.class.path");
		AbstractGrinderClassPathProcessor classPathProcessor = handler.getClassPathProcessor();
		return classPathProcessor.filterForeMostClassPath(systemClassPath, logger) + File.pathSeparator
				+ classPathProcessor.filterPatchClassPath(systemClassPath, logger);
	}
Get classpath which should be located in the head of classpath.

@param properties system properties
@param handler    language specific handler
@param logger     logger
@return foremost classpath
ngrinder-core/src/main/java/net/grinder/engine/agent/AgentImplementationEx.java