"Swing_AllComponents/Automated/rfe4959680" test case failed

Test suite: Swing 6.0
Test case: Swing_AllComponents/Automated/rfe4959680
JDK: all builds of jdk6. It was tried with 6u10 and 6u13
platform: it was tried with linux x86

As I already reported that the test case "Swing_AllComponents/Automated/rfe4959680" doesn't work properly with Tonga2 (see CR 6830496). But it hung if it was started with Tonga3. Output message is the following:

"
workdir=/net/stt-13/export/stt/gtee/global/1.6.0_12/b04_j4b/swing/13/swing/suse10_x86-i586/1.6.0_13_b04_j4b_suse10_x86-i586/stt-robot.Linux.i386/rfe4959680
about to load Test Case List
current testcase TextPaneTestCase
pos_after1
pos_before0
TAB functioning properly
CTRL+TAB functioning properly
CTRL+SHIFT+TAB functioning properly
TAB functioning properly
position after moving one word to right : 5
CTRL+RIGHT 1 functioning properly
CTRL+RIGHT 2 functioning properly
CTRL+LEFT 1 functioning properly
CTRL+LEFT 2 functioning properly
RIGHT functioning properly
DOWN functioning properly
UP functioning properly
LEFT functioning properly
 end_afterdelete29
end_first34
DELETE functioning properly
HOME functioning properly
caret position at the end of the text is : 88
caret position EXPECTED at the end of the text is : 88
CTRL+END functioning properly
CTRL+HOME functioning properly
CTRL+A functioning properly
SHIFT+HOME functioning properly
CTRL+SHIFT+END functioning properly
CTRL+SHIFT+HOME functioning properly
COPY AND PASTE functioning properly
CUT AND PASTE functioning properly
TextPaneTestCase PASSED
current testcase ButtonTestCase
/net/stt-13/export/stt/gtee/global/1.6.0_12/b04_j4b/swing/13/swing/suse10_x86-i586/1.6.0_13_b04_j4b_suse10_x86-i586/stt-robot.Linux.i386/rfe4959680/data/ButtonTestCase/Button.xml
Activate Default functioning properly
Navigate forward not functional
Activate any not functional
Navigate backward functioning properly
Activate any using mnemonic functioning properly
ButtonTestCase FAILED
current testcase SliderTestCase
Forward navigation not functional
Backward navigation not functional
Increase of value using UP not functional
Decrease of value using DOWN not functional
Increase of value using RIGHT not functional
Decrease of value using LEFT not functional
Block increase of value not functional
Block decrease of value not functional
Jump to max. value not functional
Jump to min. value not functional
SliderTestCase FAILED
current testcase CheckBoxMenuItemTestCase
fileNamedata/CheckboxMenuItemTestCase/CheckBoxMenuItem.xml
No XML file specifications found for this component
Popup is functioning properly
DOWN key functioning properly
UP not functional
Popup is not functioning properly
DOWN key not functional
Popup is functioning properly
Check item and retract menu not functional
DOWN not functional
DOWN not functional
Uncheck item and retract menu functioning properly
CheckBoxMenuItemTestCase FAILED
current testcase ListTestCase
Forward navigation functioning properly
Backward navigation functioning properly
DOWN functioning properly
sel_index 0
act_index 2
UP functioning properly
CTRL+END functioning properly
CTRL+HOME functioning properly
Cleared all selections
Select All functioning properly
Block move up functioning properly
ListTestCase PASSED
current testcase TreeTestCase
testCaseName= /net/stt-13/export/stt/gtee/global/1.6.0_12/b04_j4b/swing/13/swing/suse10_x86-i586/1.6.0_13_b04_j4b_suse10_x86-i586/stt-robot.Linux.i386/rfe4959680/data/TreeTestCase/Tree.xml
Forward navigation not functional
Backward navigation not functional
Collapse entry not functional
Expand entry functioning properly
Move down not functional
Move up not functional
Move to last entry not functional
Move to first entry not functional
Select all using CTRL+A not functional
Deselect all not functional
Select all using CTRL+/ not functional
TreeTestCase FAILED
current testcase ComboBoxTestCase
/net/stt-13/export/stt/gtee/global/1.6.0_12/b04_j4b/swing/13/swing/suse10_x86-i586/1.6.0_13_b04_j4b_suse10_x86-i586/stt-robot.Linux.i386/rfe4959680/data/ComboBoxTestCase/ComboBox.xml
TAB functioning properly
ALT+DOWN functioning properly
ESCAPE functioning properly
Toggle using ALT+UP functioning properly
Toggle using ALT+DOWN functioning properly
DOWN functioning properly
UP functioning properly
Jump to MenuItem functioning properly
ENTER functioning properly
ComboBoxTestCase PASSED
current testcase TextFieldTestCase
TAB functioning properly
"

You can see here that some of the test cases failed.
Moreover test hangs forever. The reason is in the exception:
  

java.lang.reflect.InvocationTargetException
       at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
       at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
       at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
       at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
       at rfe4959680.<init>(rfe4959680.java:47)
       at rfe4959680.main(rfe4959680.java:68)
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: 3
       at java.lang.String.substring(String.java:1935)
       at TextFieldTestCase.invokeEvents(TextFieldTestCase.java:649)
       at TextFieldTestCase.<init>(TextFieldTestCase.java:72)
       ... 6 more

which happened in the test case "TextFieldTestCase" during attempt to get substring from the TextField.

How to reproduce:
# ssh stt-robot@stt-29
# cd /net/stt-13/export/stt/gtee/global/1.6.0_12/b04_j4b/swing/13/swing/suse10_x86-i586/1.6.0_13_b04_j4b_suse10_x86-i586/stt-robot.Linux.i386/rfe4959680/
# export DISPLAY=:0.0
#sh rfe4959680.tlog

It is not a regression...