TMAPI is a programming interface for accessing and manipulating data held in a topic map. The TMAPI specification defines a set of core interfaces which must be implemented by a compliant application, as well as a set of additional interfaces which may be implemented by a compliant application or which may be built upon the core interfaces. The goal is to define a common programming interface for all topic map processors, enabling portable code and a shorter learning curve for developers moving between topic map processers.
Classfile Reader & Writer is a Java package that makes it easy to read and write Java class files. It does not provide any help with displaying the contents of a class file (besides debug output) or disassembe the byte codes, but can read "obfuscated" class files such as those generated by Crema.