question: defines or reset a listener for the given method signature . concode_field_sep MethodListener sDefaultListener concode_elem_sep HashMap<String,MethodListener> sMethods concode_field_sep long invokeL concode_elem_sep int invokeI concode_elem_sep void invokeV concode_elem_sep float invokeF concode_elem_sep double invokeD concode_elem_sep void setDefaultListener concode_elem_sep Object invokeA
target: void function ( String arg0 , MethodListener arg1 ) { if ( arg1 == null ) { sMethods . remove ( arg0 ) ; } else { sMethods . put ( arg0 , arg1 ) ; } }