Java 2 SDK, Standard Edition, version 1.2.2_07a and Previous Releases

J2SE 1.2.2_07a contains fixes for bugs identified in previous releases in the J2SE 1.2.2 series. An important bug fix in J2SE 1.2.2_07a is a fix for a performance regression that was introduced in J2SE 1.2.2_05. For more information about bug fixes in J2SE 1.2.2_07a, see this URL: http://java.sun.com/j2se/1.2/ReleaseNotes.html.

4/01 

The J2SE 1.2.2_06 is improved with bug fixes since the last release. 

1/01 

The J2SE v. 1.2.2_05a is a bug-fix release of v. 1.2.2_05 (without the "a") of the same product and includes the following new features and enhancements. 

• Scalability improvements to over 20 CPUs

  Improved handling of concurrency primitives and threads has increased the performance of multithreaded programs and significantly reduced garbage-collection pause times for programs that use many threads.

• Improved JIT compiler optimizations

  The JIT compiler performs the following new optimizations: inlining of virtual and non-virtual methods, CSE within extended basic blocks, loop analysis to eliminate array bounds checking, and fast type checks.

• Text-rendering performance improvements

  Several graphics optimizations have significantly improved text-rendering performance for Java 2 Standard Edition on Solaris software platforms without direct graphics access (DGA) support. These platforms include Ultra 5 and Ultra 10, the Solaris (Intel Platform Edition) Operating Environment, and all remote display systems.

• poller class demo package

  Provides Java applications with the ability to efficiently access the functions of the C poll(2) routine and is provided as a demo package with a sample usage server.

• Swing improvements

  Significant improvements in quality and performance have been made to the Swing classes. For additional information on these improvements, see the following URLs:

  • http://Java.sun.com/products/jdk/1.2/changes.html

  • http://java.sun.com/products/jdk/1.2/fixedbugs/index.html

10/00