jodd-proxetta/src/main/java/jodd/proxetta/asm/InvokeReplacerMethodAdapter.java
protected static String prependArgument(final String desc, final String type) {
		int ndx = desc.indexOf('(');
		ndx++;
		return desc.substring(0, ndx) + type + desc.substring(ndx);
	}
protected static String prependArgument(final String desc, final String type) {
		int ndx = desc.indexOf('(');
		ndx++;
		return desc.substring(0, ndx) + type + desc.substring(ndx);
	}
Prepends argument to the existing description.