public static String javaNameToJvmName(String javaName) {
        if (javaName == null) {
            throw new NullPointerException("javaName");
        }
        return javaName.replace('.', '/');
    }
java.lang.String -> java/lang/String

@param javaName
@return
agent-module/profiler/src/main/java/com/navercorp/pinpoint/profiler/util/JavaAssistUtils.java