private StringBuilder addCustomDns(StringBuilder jvmArguments) {
		jvmArguments.append(" -Dngrinder.etc.hosts=").append(hostName).append(":127.0.0.1,localhost:127.0.0.1");
		if (StringUtils.isNotEmpty(hostString)) {
			jvmArguments.append(",").append(rebaseHostString(hostString));
		}
		if (enableLocalDNS) {
			jvmArguments.append(" -Dngrinder.enable.local-dns=true ");
		}
		return jvmArguments;
	}
Rebase class path from relative path to absolute path.

@param classPath class path
@return converted path.
ngrinder-core/src/main/java/net/grinder/engine/agent/PropertyBuilder.java