Thursday, March 30, 2006, 10:56:32 AM, you wrote: MEN> Suddenly the array increases its length from some 21.000 to (approx) MEN> eight times the length - namely 170.000. MEN> This increases my GC times with some 200ms. Sounds related to this: http://gcc.gnu.org/ml/java/2004-11/msg00153.html