question: public static String mangleNativeMethod ( String owner , String name , String desc ) { StringBuilder sb = new StringBuilder ( ) ; sb . append ( "Java_" ) ; sb . append ( mangleNativeString ( owner ) ) ; sb . append ( "_" ) ; sb . append ( mangleNativeString ( name ) ) ; if ( desc != null ) { sb . append ( "__" ) ; sb . append ( mangleNativeString ( desc . substring ( 1 , desc . lastIndexOf ( ')' ) ) ) ) ; } return sb . toString ( ) ; }
target:  Returns the long version of the JNI function name for a method.