Bytecode Instrumentation

| 2004 JavaOne

Conference | Session 3042 Copyright Hewlett Packard Co., 2004.

What’s Hard?

•

Creating an intermediate form

─ Deserialization

─ All objects as intermediate representation

─ Less costly alternatives – bookeeping overhead

─ Size of intermediate representation

• Apply multiple transformations

─ May require update to abstract representation with

each change

─ Look for rewind() methods

• Keeping the class file verifiable

─ Consistency

─ Size