When VM uses PermHeap fully, GC interates infinite Full GC.
This come to occur in 5.0u10, it does not in 5.0u8.

CONFIGURATION :
 WinXP(sp2, japanese)
 MEM : 512MB
 JRE/JDK : 5.0u10/5.0u11

REPRODUCE :
1) compile the attached java program
2) Invoke he following command
   N:\gc-regression>java -Xmx512m -verbose:gc PermLeak
   You will see the following message shows up infinitely.
 ......
[Full GC 69765K->69765K(195512K), 0.0245129 secs]
[Full GC 69765K->69765K(195512K), 0.0244146 secs]
[Full GC 69765K->69765K(195512K), 0.0242774 secs]
[Full GC 69765K->69765K(195512K), 0.0272797 secs]
[Full GC 69765K->69765K(195512K), 0.0240545 secs]
[Full GC 69765K->69765K(195512K), 0.0281977 secs]
[Full GC 69765K->69765K(195512K), 0.0243053 secs]
[Full GC 69765K->69765K(195512K), 0.0240855 secs]
[Full GC 69765K->69765K(195512K), 0.0240751 secs]
[Full GC 69765K->69765K(195512K), 0.0243808 secs]
[Full GC 69765K->69765K(195512K), 0.0439710 secs]
[Full GC 69765K->69765K(195512K), 0.0432144 secs]
[Full GC 69765K->69765K(195512K), 0.0248107 secs]
[Full GC 69765K->69765K(195512K), 0.0301530 secs]
[Full GC 69765K->69765K(195512K), 0.0241363 secs]
[Full GC 69765K->69765K(195512K), 0.0245216 secs]
[Full GC 69765K->69765K(195512K), 0.0240100 secs]
[Full GC 69765K->69765K(195512K), 0.0247816 secs]
[Full GC 69765K->69765K(195512K), 0.0243092 secs]
[Full GC 69765K->69765K(195512K), 0.0244741 secs]
[Full GC 69765K->69765K(195512K), 0.0261402 secs]
[Full GC 69765K->69765K(195512K), 0.0251121 secs]
[Full GC 69765K->69765K(195512K), 0.0241321 secs]
[Full GC 69765K->69765K(195512K), 0.0242020 secs]
[Full GC 69765K->69765K(195512K), 0.0280566 secs]
.....