Charles M. Chen has released Sanselan 0.75, an open source
pure java library that "reads & writes a variety of image formats, including fast parsing of image metadata (size, color space, icc profile, etc.).
This library is pure Java. It's slow, consequently, but perfectly portable. It's easier to use than ImageIO/JAI/Toolkit (Sun/Java's image support), supports more formats (and supports them more correctly). It also provides easy access to metadata."
Sanselan is published under the Apache license 2.0.
IBM's alphaWorks has released the closed source Bytecode Instrumentation Profiling Toolkit for Java. "Profiling consists of getting timing traces on method execution and is commonly achieved by using a JVMPI standard interface. Instead, Bytecode Instrumentation Profiling Toolkit for Java™ (BIPTK) exploits new bytecode instrumentation capabilities provided by frameworks such as AspectJ or Eclipse TPTP. Bytecode instrumentation allows for a new generation of profilers that are much more customizable than older, JVMPI-based counterparts."