tracesviewer tool doesn't work with Java 7

[GoogleCodeExporter]

What steps will reproduce the problem?
1. $ java -version
java version "1.7.0_25"
Java(TM) SE Runtime Environment (build 1.7.0_25-b15)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)
2. $ cd src/tools/tracesviewer
3. $ java tools.tracesviewer.TracesViewer 

What is the expected output? What do you see instead?

expected: GUI to open

instead I see:
java.lang.IllegalStateException: This function should be called while holding 
treeLock
    at java.awt.Component.checkTreeLock(Component.java:1196)
    at java.awt.Container.validateTree(Container.java:1682)
    at tools.tracesviewer.TracesViewer.initComponents(Unknown Source)
    at tools.tracesviewer.TracesViewer.<init>(Unknown Source)
    at tools.tracesviewer.TracesViewer.main(Unknown Source)


What version of the product are you using? On what operating system?

I am using the latest git (13a2e2ddb1f7333458ec8aee95e1111cd2819ab0) on Ubuntu 
12.04 LTS

Please provide any additional information below.

It works with Java 1.6.0_45

Original issue reported on code.google.com by [email protected] on 23 Jul 2013 at 11:54