[DrJava] [ drjava-Bugs-2814624 ] Got this bug after hitting Undo repeatedly

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Bugs item #2814624, was opened at 2009-06-30 14:29
Message generated for change (Tracker Item Submitted) made by nobody
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=438935&aid=2814624&group_id=44253

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including the initial issue submission, for this request,
not just the latest update.
Category: Definitions (source editor)
Group: 3: Ugly
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Got this bug after hitting Undo repeatedly

Initial Comment:
edu.rice.cs.util.UnexpectedException: java.lang.RuntimeException: Illegal location 449
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Illegal location 449
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	... 10 more

Caused by:
java.lang.RuntimeException: Illegal location 449
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

System Properties:
DrJava Version drjava-20090505-r4932
DrJava Build Time 20090505-0306

drjava.debug.port = 57447
java.runtime.name = Java(TM) SE Runtime Environment
sun.boot.library.path = C:\Program Files\Java\jre6\bin
java.vm.version = 11.3-b02
java.vm.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
path.separator = ;
java.vm.name = Java HotSpot(TM) Client VM
file.encoding.pkg = sun.io
sun.java.launcher = SUN_STANDARD
user.country = CA
sun.os.patch.level = Service Pack 1
java.vm.specification.name = Java Virtual Machine Specification
user.dir = <anonymized user.dir>
java.runtime.version = 1.6.0_13-b03
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs = C:\Program Files\Java\jre6\lib\endorsed
os.arch = x86
java.io.tmpdir = <anonymized user.home>\AppData\Local\Temp\
line.separator = "\u000d\u000a"
java.vm.specification.vendor = Sun Microsystems Inc.
user.variant = 
os.name = Windows Vista
sun.jnu.encoding = Cp1252
java.library.path = C:\Program Files\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\PC Connectivity Solution\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\ThinkPad\ConnectUtilities\;C:\Program Files\Common Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\9.0\DLLShared\;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Intel\WiFi\bin\;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\SSH Communications Security\SSH Secure Shell;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\Java\jre6\bin
java.specification.name = Java Platform API Specification
java.class.version = 50.0
sun.management.compiler = HotSpot Client Compiler
os.version = 6.0
user.home = <anonymized user.home>
user.timezone = America/New_York
java.awt.printerjob = sun.awt.windows.WPrinterJob
file.encoding = Cp1252
java.specification.version = 1.6
java.class.path = <anonymized user.dir>\drjava-beta-20090505-r4932.exe
user.name = <anonymized user.name>
java.vm.specification.version = 1.0
java.home = C:\Program Files\Java\jre6
sun.arch.data.model = 32
user.language = en
java.specification.vendor = Sun Microsystems Inc.
awt.toolkit = sun.awt.windows.WToolkit
java.vm.info = mixed mode, sharing
java.version = 1.6.0_13
java.ext.dirs = C:\Program Files\Java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path = C:\Program Files\Java\jre6\lib\resources.jar;C:\Program Files\Java\jre6\lib\rt.jar;C:\Program Files\Java\jre6\lib\sunrsasign.jar;C:\Program Files\Java\jre6\lib\jsse.jar;C:\Program Files\Java\jre6\lib\jce.jar;C:\Program Files\Java\jre6\lib\charsets.jar;C:\Program Files\Java\jre6\classes
java.vendor = Sun Microsystems Inc.
file.separator = \
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
java.rmi.server.hostname = 127.0.0.1
sun.desktop = windows
sun.cpu.isalist = pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

#DrJava configuration file
#Tue Jun 30 10:28:52 EDT 2009
font.doclist = Monospaced-12
font.toolbar = -12-12
lineenum.enabled = true
key.delete.next = [shift DELETE]
key.delete.previous = [shift BACK_SPACE]
quit.prompt = false
save.before.compile = true
indent.level = 4
recent.files = [C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCollection.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestRegex.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCalendar.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSer.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\MyOuter.java]
window.height = 816
window.width = 1296
window.x = -8
window.y = -8
window.state = 6
last.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSorting.java
last.interactions.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6
dialog.gotofile.fully.qualified = true
tabbedpanes.state = 640 400 700 400
dialog.drjava.survey.enabled = false
new.version.notification = stable versions only
new.version.notification.last = 1246288390139
drjava.survey.notification.last = 1242240238049
drjava.survey.result.last = http://www.drjava.org/submit-usage.php?rev=4932&os.name=Windows%20Vista&os.version=6.0&java.version=1.6.0_13&java.vendor=Sun%20Microsystems%20Inc.

Used memory: about 22.73 megabytes
Free memory: about 13.88 megabytes
Total memory: about 36.61 megabytes
Total memory can expand to: about 63.56 megabytes

Number of processors/cores: 2

edu.rice.cs.util.UnexpectedException: java.lang.RuntimeException: Illegal location 452
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Illegal location 452
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	... 10 more

Caused by:
java.lang.RuntimeException: Illegal location 452
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

System Properties:
DrJava Version drjava-20090505-r4932
DrJava Build Time 20090505-0306

drjava.debug.port = 57447
java.runtime.name = Java(TM) SE Runtime Environment
sun.boot.library.path = C:\Program Files\Java\jre6\bin
java.vm.version = 11.3-b02
java.vm.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
path.separator = ;
java.vm.name = Java HotSpot(TM) Client VM
file.encoding.pkg = sun.io
sun.java.launcher = SUN_STANDARD
user.country = CA
sun.os.patch.level = Service Pack 1
java.vm.specification.name = Java Virtual Machine Specification
user.dir = <anonymized user.dir>
java.runtime.version = 1.6.0_13-b03
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs = C:\Program Files\Java\jre6\lib\endorsed
os.arch = x86
java.io.tmpdir = <anonymized user.home>\AppData\Local\Temp\
line.separator = "\u000d\u000a"
java.vm.specification.vendor = Sun Microsystems Inc.
user.variant = 
os.name = Windows Vista
sun.jnu.encoding = Cp1252
java.library.path = C:\Program Files\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\PC Connectivity Solution\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\ThinkPad\ConnectUtilities\;C:\Program Files\Common Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\9.0\DLLShared\;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Intel\WiFi\bin\;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\SSH Communications Security\SSH Secure Shell;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\Java\jre6\bin
java.specification.name = Java Platform API Specification
java.class.version = 50.0
sun.management.compiler = HotSpot Client Compiler
os.version = 6.0
user.home = <anonymized user.home>
user.timezone = America/New_York
java.awt.printerjob = sun.awt.windows.WPrinterJob
file.encoding = Cp1252
java.specification.version = 1.6
java.class.path = <anonymized user.dir>\drjava-beta-20090505-r4932.exe
user.name = <anonymized user.name>
java.vm.specification.version = 1.0
java.home = C:\Program Files\Java\jre6
sun.arch.data.model = 32
user.language = en
java.specification.vendor = Sun Microsystems Inc.
awt.toolkit = sun.awt.windows.WToolkit
java.vm.info = mixed mode, sharing
java.version = 1.6.0_13
java.ext.dirs = C:\Program Files\Java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path = C:\Program Files\Java\jre6\lib\resources.jar;C:\Program Files\Java\jre6\lib\rt.jar;C:\Program Files\Java\jre6\lib\sunrsasign.jar;C:\Program Files\Java\jre6\lib\jsse.jar;C:\Program Files\Java\jre6\lib\jce.jar;C:\Program Files\Java\jre6\lib\charsets.jar;C:\Program Files\Java\jre6\classes
java.vendor = Sun Microsystems Inc.
file.separator = \
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
java.rmi.server.hostname = 127.0.0.1
sun.desktop = windows
sun.cpu.isalist = pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

#DrJava configuration file
#Tue Jun 30 10:29:08 EDT 2009
font.doclist = Monospaced-12
font.toolbar = -12-12
lineenum.enabled = true
key.delete.next = [shift DELETE]
key.delete.previous = [shift BACK_SPACE]
quit.prompt = false
save.before.compile = true
indent.level = 4
recent.files = [C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCollection.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestRegex.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCalendar.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSer.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\MyOuter.java]
window.height = 816
window.width = 1296
window.x = -8
window.y = -8
window.state = 6
last.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSorting.java
last.interactions.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6
dialog.gotofile.fully.qualified = true
tabbedpanes.state = 640 400 700 400
dialog.drjava.survey.enabled = false
new.version.notification = stable versions only
new.version.notification.last = 1246288390139
drjava.survey.notification.last = 1242240238049
drjava.survey.result.last = http://www.drjava.org/submit-usage.php?rev=4932&os.name=Windows%20Vista&os.version=6.0&java.version=1.6.0_13&java.vendor=Sun%20Microsystems%20Inc.

Used memory: about 21.58 megabytes
Free memory: about 15.03 megabytes
Total memory: about 36.61 megabytes
Total memory can expand to: about 63.56 megabytes

Number of processors/cores: 2

edu.rice.cs.util.UnexpectedException: java.lang.RuntimeException: Illegal location 457
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Illegal location 457
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	... 10 more

Caused by:
java.lang.RuntimeException: Illegal location 457
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

System Properties:
DrJava Version drjava-20090505-r4932
DrJava Build Time 20090505-0306

drjava.debug.port = 57447
java.runtime.name = Java(TM) SE Runtime Environment
sun.boot.library.path = C:\Program Files\Java\jre6\bin
java.vm.version = 11.3-b02
java.vm.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
path.separator = ;
java.vm.name = Java HotSpot(TM) Client VM
file.encoding.pkg = sun.io
sun.java.launcher = SUN_STANDARD
user.country = CA
sun.os.patch.level = Service Pack 1
java.vm.specification.name = Java Virtual Machine Specification
user.dir = <anonymized user.dir>
java.runtime.version = 1.6.0_13-b03
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs = C:\Program Files\Java\jre6\lib\endorsed
os.arch = x86
java.io.tmpdir = <anonymized user.home>\AppData\Local\Temp\
line.separator = "\u000d\u000a"
java.vm.specification.vendor = Sun Microsystems Inc.
user.variant = 
os.name = Windows Vista
sun.jnu.encoding = Cp1252
java.library.path = C:\Program Files\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\PC Connectivity Solution\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\ThinkPad\ConnectUtilities\;C:\Program Files\Common Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\9.0\DLLShared\;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Intel\WiFi\bin\;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\SSH Communications Security\SSH Secure Shell;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\Java\jre6\bin
java.specification.name = Java Platform API Specification
java.class.version = 50.0
sun.management.compiler = HotSpot Client Compiler
os.version = 6.0
user.home = <anonymized user.home>
user.timezone = America/New_York
java.awt.printerjob = sun.awt.windows.WPrinterJob
file.encoding = Cp1252
java.specification.version = 1.6
java.class.path = <anonymized user.dir>\drjava-beta-20090505-r4932.exe
user.name = <anonymized user.name>
java.vm.specification.version = 1.0
java.home = C:\Program Files\Java\jre6
sun.arch.data.model = 32
user.language = en
java.specification.vendor = Sun Microsystems Inc.
awt.toolkit = sun.awt.windows.WToolkit
java.vm.info = mixed mode, sharing
java.version = 1.6.0_13
java.ext.dirs = C:\Program Files\Java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path = C:\Program Files\Java\jre6\lib\resources.jar;C:\Program Files\Java\jre6\lib\rt.jar;C:\Program Files\Java\jre6\lib\sunrsasign.jar;C:\Program Files\Java\jre6\lib\jsse.jar;C:\Program Files\Java\jre6\lib\jce.jar;C:\Program Files\Java\jre6\lib\charsets.jar;C:\Program Files\Java\jre6\classes
java.vendor = Sun Microsystems Inc.
file.separator = \
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
java.rmi.server.hostname = 127.0.0.1
sun.desktop = windows
sun.cpu.isalist = pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

#DrJava configuration file
#Tue Jun 30 10:29:15 EDT 2009
font.doclist = Monospaced-12
font.toolbar = -12-12
lineenum.enabled = true
key.delete.next = [shift DELETE]
key.delete.previous = [shift BACK_SPACE]
quit.prompt = false
save.before.compile = true
indent.level = 4
recent.files = [C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCollection.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestRegex.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCalendar.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSer.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\MyOuter.java]
window.height = 816
window.width = 1296
window.x = -8
window.y = -8
window.state = 6
last.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSorting.java
last.interactions.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6
dialog.gotofile.fully.qualified = true
tabbedpanes.state = 640 400 700 400
dialog.drjava.survey.enabled = false
new.version.notification = stable versions only
new.version.notification.last = 1246288390139
drjava.survey.notification.last = 1242240238049
drjava.survey.result.last = http://www.drjava.org/submit-usage.php?rev=4932&os.name=Windows%20Vista&os.version=6.0&java.version=1.6.0_13&java.vendor=Sun%20Microsystems%20Inc.

Used memory: about 22.76 megabytes
Free memory: about 13.86 megabytes
Total memory: about 36.61 megabytes
Total memory can expand to: about 63.56 megabytes

Number of processors/cores: 2

edu.rice.cs.util.UnexpectedException: java.lang.RuntimeException: Illegal location 456
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Illegal location 456
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	... 10 more

Caused by:
java.lang.RuntimeException: Illegal location 456
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

System Properties:
DrJava Version drjava-20090505-r4932
DrJava Build Time 20090505-0306

drjava.debug.port = 57447
java.runtime.name = Java(TM) SE Runtime Environment
sun.boot.library.path = C:\Program Files\Java\jre6\bin
java.vm.version = 11.3-b02
java.vm.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
path.separator = ;
java.vm.name = Java HotSpot(TM) Client VM
file.encoding.pkg = sun.io
sun.java.launcher = SUN_STANDARD
user.country = CA
sun.os.patch.level = Service Pack 1
java.vm.specification.name = Java Virtual Machine Specification
user.dir = <anonymized user.dir>
java.runtime.version = 1.6.0_13-b03
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs = C:\Program Files\Java\jre6\lib\endorsed
os.arch = x86
java.io.tmpdir = <anonymized user.home>\AppData\Local\Temp\
line.separator = "\u000d\u000a"
java.vm.specification.vendor = Sun Microsystems Inc.
user.variant = 
os.name = Windows Vista
sun.jnu.encoding = Cp1252
java.library.path = C:\Program Files\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\PC Connectivity Solution\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\ThinkPad\ConnectUtilities\;C:\Program Files\Common Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\9.0\DLLShared\;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Intel\WiFi\bin\;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\SSH Communications Security\SSH Secure Shell;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\Java\jre6\bin
java.specification.name = Java Platform API Specification
java.class.version = 50.0
sun.management.compiler = HotSpot Client Compiler
os.version = 6.0
user.home = <anonymized user.home>
user.timezone = America/New_York
java.awt.printerjob = sun.awt.windows.WPrinterJob
file.encoding = Cp1252
java.specification.version = 1.6
java.class.path = <anonymized user.dir>\drjava-beta-20090505-r4932.exe
user.name = <anonymized user.name>
java.vm.specification.version = 1.0
java.home = C:\Program Files\Java\jre6
sun.arch.data.model = 32
user.language = en
java.specification.vendor = Sun Microsystems Inc.
awt.toolkit = sun.awt.windows.WToolkit
java.vm.info = mixed mode, sharing
java.version = 1.6.0_13
java.ext.dirs = C:\Program Files\Java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path = C:\Program Files\Java\jre6\lib\resources.jar;C:\Program Files\Java\jre6\lib\rt.jar;C:\Program Files\Java\jre6\lib\sunrsasign.jar;C:\Program Files\Java\jre6\lib\jsse.jar;C:\Program Files\Java\jre6\lib\jce.jar;C:\Program Files\Java\jre6\lib\charsets.jar;C:\Program Files\Java\jre6\classes
java.vendor = Sun Microsystems Inc.
file.separator = \
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
java.rmi.server.hostname = 127.0.0.1
sun.desktop = windows
sun.cpu.isalist = pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

#DrJava configuration file
#Tue Jun 30 10:29:22 EDT 2009
font.doclist = Monospaced-12
font.toolbar = -12-12
lineenum.enabled = true
key.delete.next = [shift DELETE]
key.delete.previous = [shift BACK_SPACE]
quit.prompt = false
save.before.compile = true
indent.level = 4
recent.files = [C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCollection.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestRegex.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCalendar.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSer.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\MyOuter.java]
window.height = 816
window.width = 1296
window.x = -8
window.y = -8
window.state = 6
last.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSorting.java
last.interactions.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6
dialog.gotofile.fully.qualified = true
tabbedpanes.state = 640 400 700 400
dialog.drjava.survey.enabled = false
new.version.notification = stable versions only
new.version.notification.last = 1246288390139
drjava.survey.notification.last = 1242240238049
drjava.survey.result.last = http://www.drjava.org/submit-usage.php?rev=4932&os.name=Windows%20Vista&os.version=6.0&java.version=1.6.0_13&java.vendor=Sun%20Microsystems%20Inc.

Used memory: about 21.57 megabytes
Free memory: about 15.04 megabytes
Total memory: about 36.61 megabytes
Total memory can expand to: about 63.56 megabytes

Number of processors/cores: 2

edu.rice.cs.util.UnexpectedException: java.lang.RuntimeException: Illegal location 450
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Illegal location 450
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	... 10 more

Caused by:
java.lang.RuntimeException: Illegal location 450
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

System Properties:
DrJava Version drjava-20090505-r4932
DrJava Build Time 20090505-0306

drjava.debug.port = 57447
java.runtime.name = Java(TM) SE Runtime Environment
sun.boot.library.path = C:\Program Files\Java\jre6\bin
java.vm.version = 11.3-b02
java.vm.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
path.separator = ;
java.vm.name = Java HotSpot(TM) Client VM
file.encoding.pkg = sun.io
sun.java.launcher = SUN_STANDARD
user.country = CA
sun.os.patch.level = Service Pack 1
java.vm.specification.name = Java Virtual Machine Specification
user.dir = <anonymized user.dir>
java.runtime.version = 1.6.0_13-b03
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs = C:\Program Files\Java\jre6\lib\endorsed
os.arch = x86
java.io.tmpdir = <anonymized user.home>\AppData\Local\Temp\
line.separator = "\u000d\u000a"
java.vm.specification.vendor = Sun Microsystems Inc.
user.variant = 
os.name = Windows Vista
sun.jnu.encoding = Cp1252
java.library.path = C:\Program Files\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\PC Connectivity Solution\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\ThinkPad\ConnectUtilities\;C:\Program Files\Common Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\9.0\DLLShared\;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Intel\WiFi\bin\;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\SSH Communications Security\SSH Secure Shell;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\Java\jre6\bin
java.specification.name = Java Platform API Specification
java.class.version = 50.0
sun.management.compiler = HotSpot Client Compiler
os.version = 6.0
user.home = <anonymized user.home>
user.timezone = America/New_York
java.awt.printerjob = sun.awt.windows.WPrinterJob
file.encoding = Cp1252
java.specification.version = 1.6
java.class.path = <anonymized user.dir>\drjava-beta-20090505-r4932.exe
user.name = <anonymized user.name>
java.vm.specification.version = 1.0
java.home = C:\Program Files\Java\jre6
sun.arch.data.model = 32
user.language = en
java.specification.vendor = Sun Microsystems Inc.
awt.toolkit = sun.awt.windows.WToolkit
java.vm.info = mixed mode, sharing
java.version = 1.6.0_13
java.ext.dirs = C:\Program Files\Java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path = C:\Program Files\Java\jre6\lib\resources.jar;C:\Program Files\Java\jre6\lib\rt.jar;C:\Program Files\Java\jre6\lib\sunrsasign.jar;C:\Program Files\Java\jre6\lib\jsse.jar;C:\Program Files\Java\jre6\lib\jce.jar;C:\Program Files\Java\jre6\lib\charsets.jar;C:\Program Files\Java\jre6\classes
java.vendor = Sun Microsystems Inc.
file.separator = \
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
java.rmi.server.hostname = 127.0.0.1
sun.desktop = windows
sun.cpu.isalist = pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

#DrJava configuration file
#Tue Jun 30 10:29:27 EDT 2009
font.doclist = Monospaced-12
font.toolbar = -12-12
lineenum.enabled = true
key.delete.next = [shift DELETE]
key.delete.previous = [shift BACK_SPACE]
quit.prompt = false
save.before.compile = true
indent.level = 4
recent.files = [C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCollection.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestRegex.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCalendar.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSer.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\MyOuter.java]
window.height = 816
window.width = 1296
window.x = -8
window.y = -8
window.state = 6
last.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSorting.java
last.interactions.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6
dialog.gotofile.fully.qualified = true
tabbedpanes.state = 640 400 700 400
dialog.drjava.survey.enabled = false
new.version.notification = stable versions only
new.version.notification.last = 1246288390139
drjava.survey.notification.last = 1242240238049
drjava.survey.result.last = http://www.drjava.org/submit-usage.php?rev=4932&os.name=Windows%20Vista&os.version=6.0&java.version=1.6.0_13&java.vendor=Sun%20Microsystems%20Inc.

Used memory: about 22.70 megabytes
Free memory: about 13.91 megabytes
Total memory: about 36.61 megabytes
Total memory can expand to: about 63.56 megabytes

Number of processors/cores: 2

edu.rice.cs.util.UnexpectedException: java.lang.RuntimeException: Illegal location 451
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Illegal location 451
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	... 10 more

Caused by:
java.lang.RuntimeException: Illegal location 451
	at edu.rice.cs.util.UnexpectedException.<init>(UnexpectedException.java:71)
	at edu.rice.cs.drjava.model.AbstractDJDocument.setCurrentLocation(AbstractDJDocument.java:474)
	at edu.rice.cs.drjava.model.AbstractDJDocument$UnremoveCommand$1.run(AbstractDJDocument.java:1861)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

System Properties:
DrJava Version drjava-20090505-r4932
DrJava Build Time 20090505-0306

drjava.debug.port = 57447
java.runtime.name = Java(TM) SE Runtime Environment
sun.boot.library.path = C:\Program Files\Java\jre6\bin
java.vm.version = 11.3-b02
java.vm.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
path.separator = ;
java.vm.name = Java HotSpot(TM) Client VM
file.encoding.pkg = sun.io
sun.java.launcher = SUN_STANDARD
user.country = CA
sun.os.patch.level = Service Pack 1
java.vm.specification.name = Java Virtual Machine Specification
user.dir = <anonymized user.dir>
java.runtime.version = 1.6.0_13-b03
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs = C:\Program Files\Java\jre6\lib\endorsed
os.arch = x86
java.io.tmpdir = <anonymized user.home>\AppData\Local\Temp\
line.separator = "\u000d\u000a"
java.vm.specification.vendor = Sun Microsystems Inc.
user.variant = 
os.name = Windows Vista
sun.jnu.encoding = Cp1252
java.library.path = C:\Program Files\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\PC Connectivity Solution\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\ThinkPad\ConnectUtilities\;C:\Program Files\Common Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\9.0\DLLShared\;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Intel\WiFi\bin\;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\SSH Communications Security\SSH Secure Shell;"C:\Program Files\Java\jdk1.6.0_12"\bin;C:\Program Files\Java\jre6\bin
java.specification.name = Java Platform API Specification
java.class.version = 50.0
sun.management.compiler = HotSpot Client Compiler
os.version = 6.0
user.home = <anonymized user.home>
user.timezone = America/New_York
java.awt.printerjob = sun.awt.windows.WPrinterJob
file.encoding = Cp1252
java.specification.version = 1.6
java.class.path = <anonymized user.dir>\drjava-beta-20090505-r4932.exe
user.name = <anonymized user.name>
java.vm.specification.version = 1.0
java.home = C:\Program Files\Java\jre6
sun.arch.data.model = 32
user.language = en
java.specification.vendor = Sun Microsystems Inc.
awt.toolkit = sun.awt.windows.WToolkit
java.vm.info = mixed mode, sharing
java.version = 1.6.0_13
java.ext.dirs = C:\Program Files\Java\jre6\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path = C:\Program Files\Java\jre6\lib\resources.jar;C:\Program Files\Java\jre6\lib\rt.jar;C:\Program Files\Java\jre6\lib\sunrsasign.jar;C:\Program Files\Java\jre6\lib\jsse.jar;C:\Program Files\Java\jre6\lib\jce.jar;C:\Program Files\Java\jre6\lib\charsets.jar;C:\Program Files\Java\jre6\classes
java.vendor = Sun Microsystems Inc.
file.separator = \
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
java.rmi.server.hostname = 127.0.0.1
sun.desktop = windows
sun.cpu.isalist = pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

#DrJava configuration file
#Tue Jun 30 10:29:32 EDT 2009
font.doclist = Monospaced-12
font.toolbar = -12-12
lineenum.enabled = true
key.delete.next = [shift DELETE]
key.delete.previous = [shift BACK_SPACE]
quit.prompt = false
save.before.compile = true
indent.level = 4
recent.files = [C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCollection.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestRegex.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestCalendar.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSer.java,C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\MyOuter.java]
window.height = 816
window.width = 1296
window.x = -8
window.y = -8
window.state = 6
last.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6\\TestSorting.java
last.interactions.dir = C:\\Users\\<anonymized user.name>\\Documents\\Summer 2009\\SCJP6
dialog.gotofile.fully.qualified = true
tabbedpanes.state = 640 400 700 400
dialog.drjava.survey.enabled = false
new.version.notification = stable versions only
new.version.notification.last = 1246288390139
drjava.survey.notification.last = 1242240238049
drjava.survey.result.last = http://www.drjava.org/submit-usage.php?rev=4932&os.name=Windows%20Vista&os.version=6.0&java.version=1.6.0_13&java.vendor=Sun%20Microsystems%20Inc.

Used memory: about 21.69 megabytes
Free memory: about 14.92 megabytes
Total memory: about 36.61 megabytes
Total memory can expand to: about 63.56 megabytes

Number of processors/cores: 2

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=438935&aid=2814624&group_id=44253

[DrJava] [ drjava-Bugs-2814624 ] Got this bug after hitting Undo repeatedly

A lightweight programming environment for Java

[DrJava] [ drjava-Bugs-2814624 ] Got this bug after hitting Undo repeatedly