java.awt.Container class stores all children in an array of Components:
1) its initial size is 0;
2) on changing the hierarchy of components (add/remove) it addresses the Arrays.copy(args) method;
Posted Date : 2007-10-12 16:04:51.0

N/A

List collection might be applied. Performance testing should be accomplished to choose better collection type.
Posted Date : 2007-12-27 14:24:58.0

There is no visible improvements with startup2 and startup3 but it does observed with swingmark if Container use ArrayList instead of plaing array.
C:\ad153231\refworkload_1>efworkload_1\results\swingmark\comp_array_original_1 C
============================================================================
esults\swingmark  Benchmark         Samples        Mean     Stdev             Ge
omean Weight
  swingmark              30      907.52      3.77
============================================================================
esults\swingmark  Benchmark         Samples        Mean     Stdev   %Diff    P
 Significant
  swingmark              30      881.36      4.33   -2.88 0.000          Yes
============================================================================
  * - Not Significant: The %Diff for the mean could be noise. If there is
      an actual difference, more samples would be needed to detect it.
Posted Date : 2008-01-25 16:51:20.0

The implementation of this bugfix is causing severe deadlock problems due to an AWTTreeLock having been added to java.awt.Container.getComponentCount(). 

For details, see

http://forums.java.net/jive/thread.jspa?messageID=318793

Please change this, or roll this bugfix back.