If you want to search databases of known bugs in the JDKs and other Java-related tools and technologies, here are some sites to help.

The Bug Parade at Sun's JDC Site
You can search an online catalog of bug reports and place your own bug votes. Bug votes let Sun know which bugs are most important (or incredibly frustrating) to your development projects and helps them prioritize the bugs.

Known Bugs in JDK 1.1.x

• JDK 1.1.1 Known
  
• JDK 1.1.2 Known
  
• JDK 1.1.3 Known
  
• JDK 1.1.4 Known
  

Fixed Bugs in JDK 1.1.x

• JDK 1.1.1 Fixed
  
• JDK 1.1.2 Fixed
  
• JDK 1.1.3 Fixed
  
• JDK 1.1.4 Fixed
  

InfoBus comments & bugs
Send e-mail to infobus-comments@java.sun.com.

Java Plug-In comments & bugs
Send email to java-plugin-feedback@sun.com.