Memory leak in JFrame on Linux

FULL PRODUCT VERSION :
java version " 1.7.0_06 "
Java(TM) SE Runtime Environment (build 1.7.0_06-b24)
Java HotSpot(TM) 64-Bit Server VM (build 23.2-b09, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux 2.6.32-5-amd64

A DESCRIPTION OF THE PROBLEM :
Creating, packing and then disposing a JFrame leaks about 40 bytes/frame.

REGRESSION. Last worked in version 6u31

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile test program and run it. Use jconsole to monitor memory.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No memory leaks when running this.
ACTUAL -
Heap use (after GC) goes up very slowly (about 3 MB/minute on my system). It may take running this at least 10 minutes to notice the increase.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class FrameLeak {
public static void main(String[] args) {
for (int i = 0; i < 1000000000; i++) {
doit();
if (i % 1000 == 0) System.out.println(i);
}
}
public static void doit() {
JFrame f = new JFrame();
f.pack();
f.dispose();
}
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
None found.