Tests
nsk/stress/except/except002
nsk/stress/except/except003
nsk/stress/except/except005
nsk/stress/except/except006
nsk/stress/except/except011

cause very long GC pauses and timeout on 1 processor CPU.
They work fine on multi CPU machines.

Here is the tail of such test log (on vmsqe-p4-03):

[Full GC [Tenured: 173439K->173439K(173440K), 1292.4981464 secs] 251455K->251455K(251456K), [Perm : 2672K->2672K(21248K)], 1292.6935179 secs] [Times: user=3.02 sys=8.85, real=1292.69 secs]
[Full GC [Tenured: 173439K->173439K(173440K), 1270.5978761 secs] 251455K->251455K(251456K), [Perm : 2672K->2672K(21248K)], 1270.7724280 secs] [Times: user=3.25 sys=8.56, real=1270.77 secs]
Skipped: InstantiationException (negative)[Full GC [Tenured: 173439K->129K(173440K), 0.9053784 secs] 251455K->129K(251456K), [Perm : 2672K->2672K(21248K)], 0.9069578 secs] [Times: user=0.10 sys=0.01, real=0.91 secs]

Test passed.
Heap
 def new generation total 78016K, used 1115K [0xfffffd7fe5810000, 0xfffffd7feacb0000, 0xfffffd7feacb0000)
  eden space 69376K, 1% used [0xfffffd7fe5810000, 0xfffffd7fe5926ed0, 0xfffffd7fe9bd0000)
  from space 8640K, 0% used [0xfffffd7fea440000, 0xfffffd7fea440000, 0xfffffd7feacb0000)
  to space 8640K, 0% used [0xfffffd7fe9bd0000, 0xfffffd7fe9bd0000, 0xfffffd7fea440000)
 tenured generation total 173440K, used 129K [0xfffffd7feacb0000, 0xfffffd7ff5610000, 0xfffffd7ff5610000)
   the space 173440K, 0% used [0xfffffd7feacb0000, 0xfffffd7feacd0438, 0xfffffd7feacd0600, 0xfffffd7ff5610000)
 compacting perm gen total 21248K, used 2680K [0xfffffd7ff5610000, 0xfffffd7ff6ad0000, 0xfffffd7ffaa10000)
   the space 21248K, 12% used [0xfffffd7ff5610000, 0xfffffd7ff58ae0b0, 0xfffffd7ff58ae200, 0xfffffd7ff6ad0000)
No shared spaces configured.

I've attached rerun.sh from nightly which could be used as example.