The minus() methods in the platform specific address classes return values of type 'long'. But there are multiple areas where these return values are read into values of type 'int', with deliberate casts, thus causing potential loss of data.

An example:
share/classes/sun/jvm/hotspot/asm/Disassembler.java

48 public static void decode(InstructionVisitor visitor, CodeBlob blob, Address begin , Address end) {
49 int codeSize = (int)end.minus(begin);