drjava-hackers — DrJava developers mailing list

[DrJava] Development Release

[Charles R. <cr...@ri...>]

   drjava-20030520-1527 has just been released, which includes the new 
Interactions Preprocessor framework (the last of the big projects from this 
year's Comp 312).  The preprocessor currently adds support for generic 
types and syntax error highlighting to the Interactions Pane, and it will 
allow us to easily support better error messages and our own type checker 
in the future (along with many other features we're only starting to 
consider).  Give it a try from the link below!

http://sourceforge.net/project/showfiles.php?group_id=44253&release_id=160794

   Many thanks to the developers in 312 for their work on DrJava!  We've 
accomplished quite a bit this spring to help DrJava mature.

   On a related note, summer development is starting this week, so emails 
will likely start to pick up again.  We're happy to keep any or all of you 
on the list if you want to know what's going on or continue contributing, 
but if you want to be taken off the list now that the course is over, just 
send me an email.

Thanks,
Charlie

[DrJava] DrJava Update

[Jim V. F. <big...@ow...>]

Hey all,

The Interactions Preprocessor team has integrated its work with the DrJava
codebase.  We implemented two major features: syntax error highlighting
and type erasure in the interactions pane.  That's right, you can type in
generics now!  We encourage you to update your code and play around.

There are three steps that you need to take to continue developing for
DrJava.

Step 1)

In src/edu/rice/cs/lib

run 'cvs update'

This will give you the javaast.jar we spent most of the semester working
on.

Step 2)

In src/edu/rice/cs/util

run 'ant update'

We added a method to StringOps that's necessary for error highlighting.

Step 3)

Profit.  (Just kidding!  If you don't get it, don't worry.)

Add the javaast.jar to your classpath in exactly the same manner that
DynamicJava and JUnit are added.  Without this addition, you'll never be
able to compile.

Let me or Charlie know if you have any problems, and we'll do our best to
help you out.

Jim

[DrJava] DrJava Support Request

[Peter C. <cen...@ri...>]

> How do i pass compiler switches? (in particular, how do i get the 
> compiler to accept assert (-source 1.4), and 1.5 stuff.)
>
> How do i get the compiler/runtime to pay attention to my CLASSPATH?
>
> let's see, at the moment i'm running jdk1.4 drjava-stable-20030313 on 
> SunOS 5.7.

Right now there is no way to pass arbitrary command-line switches
to a compiler.  This is related to the level of integration we have
between the compiler classes and our error-reporting interface.  We are 
aware
that this is a limitation for some users, and we have been considering
solutions.  In the meantime, the two options you refer to can be 
modified directly via options in the Preferences dialog or by modifying 
the .drjava
properties file (recommended only for experienced users).

P.S. Please login to SourceForge when posting requests in the future, 
to make it easier to keep you updated on our responses.

--
Peter Centgraf
Class of 2003
Rice University
Houston, TX

[DrJava] Development Release

[Charles R. <cr...@ri...>]

   A new development release of DrJava is now available, including several 
significant features added in Rice's Comp 312 ("Program Engineering") 
course this spring.  These include:

  - The ability to use the Interactions Pane in the context of a breakpoint 
in the debugger.  The user can view and modify any variables or fields that 
are in scope, or call any visible methods.  (Note: fields and methods must 
be prefixed by "this.", such as "this.x" or "this.foo(3)".)

  - Support for generating and viewing Javadoc HTML documentation for a 
program, through a button on the toolbar.

  - Automatic, Emacs-style file backups (eg. Foo.java~).

  - The ability to search backwards through a document.

  - Improved comment indenting.


   Note that the new debugger and Javadoc features are still early in their 
development, and they will be refined in upcoming releases.  Please try 
them out and let us know any problems that you have!

Thanks,
Charlie

[DrJava] [ drjava-Bugs-731075 ] Firewall stops the startup of Dr. Java

[SourceForge.net <no...@so...>]

Bugs item #731075, was opened at 2003-05-01 17:15
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=438935&aid=731075&group_id=44253

Category: Other
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Firewall stops the startup of Dr. Java

Initial Comment:
Dr. Java (Dr. Java stable 20030313.jar) hangs up when 
trying to start up under Windows XP/home.  The Dr. 
Java Splash screen comes up but won't go 
away....Need to end the Javaw Process to terminate. 
This happens both when double clicking on the Dr. 
Java .jar file, and when starting from a command line.

I've found that the problem was my McAfee Firewall, 
when the firewall is off, this problem goes away.  When 
the firewall is on, it happens. 

This does not happen with an older version of Dr. Java 
(no version number, size 833kb, dated 7/30/2001)

ha...@th...
Using SDK 1.4.1.02


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[DrJava] [ drjava-Bugs-724419 ] Runtime ArrayIndexOutOfBoundsException...

[SourceForge.net <no...@so...>]

Bugs item #724419, was opened at 2003-04-19 16:44
Message generated for change (Tracker Item Submitted) made by Item Submitter
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Category: None
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Runtime ArrayIndexOutOfBoundsException...

Initial Comment:
Here's the exception I got, dialog box and everything.

java.lang.ArrayIndexOutOfBoundsException: No such child: 17
	at java.awt.Container.getComponent(Container.java:237)
	at javax.swing.JPopupMenu.getSubElements(JPopupMenu.java:
1277)
	at javax.swing.JMenuBar.
processBindingForKeyStrokeRecursive(JMenuBar.java:664)
	at javax.swing.JMenuBar.
processBindingForKeyStrokeRecursive(JMenuBar.java:666)
	at javax.swing.JMenuBar.processKeyBinding(JMenuBar.java:
642)
	at javax.swing.KeyboardManager.
fireBinding(KeyboardManager.java:253)
	at javax.swing.KeyboardManager.
fireKeyboardAction(KeyboardManager.java:240)
	at javax.swing.JComponent.
processKeyBindingsForAllComponents(JComponent.java:2512)
	at javax.swing.JComponent.processKeyBindings(JComponent.
java:2504)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:
2398)
	at edu.rice.cs.drjava.ui.DefinitionsPane.
processKeyEvent(DefinitionsPane.java:426)
	at java.awt.Component.processEvent(Component.java:4943)
	at java.awt.Container.processEvent(Container.java:1566)
	at java.awt.Component.dispatchEventImpl(Component.java:3639)
	at java.awt.Container.dispatchEventImpl(Container.java:1623)
	at java.awt.Component.dispatchEvent(Component.java:3480)
	at java.awt.KeyboardFocusManager.
redispatchEvent(KeyboardFocusManager.java:1688)
	at java.awt.DefaultKeyboardFocusManager.
dispatchKeyEvent(DefaultKeyboardFocusManager.java:593)
	at java.awt.DefaultKeyboardFocusManager.
preDispatchKeyEvent(DefaultKeyboardFocusManager.java:765)
	at java.awt.DefaultKeyboardFocusManager.
typeAheadAssertions(DefaultKeyboardFocusManager.java:698)
	at java.awt.DefaultKeyboardFocusManager.
dispatchEvent(DefaultKeyboardFocusManager.java:559)
	at java.awt.Component.dispatchEventImpl(Component.java:3509)
	at java.awt.Container.dispatchEventImpl(Container.java:1623)
	at java.awt.Window.dispatchEventImpl(Window.java:1590)
	at java.awt.Component.dispatchEvent(Component.java:3480)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
	at java.awt.EventDispatchThread.
pumpOneEventForHierarchy(EventDispatchThread.java:197)
	at java.awt.EventDispatchThread.
pumpEventsForHierarchy(EventDispatchThread.java:150)
	at java.awt.EventDispatchThread.
pumpEvents(EventDispatchThread.java:144)
	at java.awt.EventDispatchThread.
pumpEvents(EventDispatchThread.java:136)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:
99)

here's my info from the DrJava window

com.apple.macos.useScreenMenuBar	true
file.encoding	ANSI_X3.4-1968
file.encoding.pkg	sun.io
file.separator	/
java.awt.graphicsenv	sun.awt.X11GraphicsEnvironment
java.awt.printerjob	sun.print.PSPrinterJob
java.class.path	/space/drjava/drjava-20030115-2237.jar
java.class.version	48.0
java.endorsed.dirs	/usr/lib/j2re1.4.1_02/lib/endorsed
java.ext.dirs	/usr/lib/j2re1.4.1_02/lib/ext
java.home	/usr/lib/j2re1.4.1_02
java.io.tmpdir	/tmp
java.library.path	/usr/lib/j2re1.4.1_02/lib/i386/client:/usr/lib/j2re1.
4.1_02/lib/i386:/usr/lib/j2re1.4.1_02/../lib/i386
java.runtime.name	Java(TM) 2 Runtime Environment, Standard 
Edition
java.runtime.version	1.4.1_02-b06
java.specification.name	Java Platform API Specification
java.specification.vendor	Sun Microsystems Inc.
java.specification.version	1.4
java.util.prefs.PreferencesFactory	java.util.prefs.
FileSystemPreferencesFactory
java.vendor	Sun Microsystems Inc.
java.vendor.url	http://java.sun.com/
java.vendor.url.bug	http://java.sun.com/cgi-bin/bugreport.cgi
java.version	1.4.1_02
java.vm.info	mixed mode
java.vm.name	Java HotSpot(TM) Client VM
java.vm.specification.name	Java Virtual Machine Specification
java.vm.specification.vendor	Sun Microsystems Inc.
java.vm.specification.version	1.0
java.vm.vendor	Sun Microsystems Inc.
java.vm.version	1.4.1_02-b06
line.separator	

os.arch	i386
os.name	Linux
os.version	2.4.20
path.separator	:
sun.arch.data.model	32
sun.awt.exception.handler	edu.rice.cs.drjava.ui.
AWTExceptionHandler
sun.boot.class.path	/usr/lib/j2re1.4.1_02/lib/rt.jar:/usr/lib/j2re1.4.
1_02/lib/i18n.jar:/usr/lib/j2re1.4.1_02/lib/sunrsasign.jar:/usr/lib/j2re1.4.
1_02/lib/jsse.jar:/usr/lib/j2re1.4.1_02/lib/jce.jar:/usr/lib/j2re1.4.
1_02/lib/charsets.jar:/usr/lib/j2re1.4.1_02/classes
sun.boot.library.path	/usr/lib/j2re1.4.1_02/lib/i386
sun.cpu.endian	little
sun.cpu.isalist	
sun.io.unicode.encoding	UnicodeLittle
sun.java2d.fontpath	
sun.os.patch.level	unknown
user.country	US
user.dir	/root
user.home	/root
user.language	en
user.name	root
user.timezone	America/Indianapolis

I specifically run Slackware 9.0 Beta with XFree86-4.3.0 and Blackbox... 
some odd version -- new.  Nothing serious happened, just a little dialog 
box with a 'For chrissakes submit a bug report' and 'It'd be wise to 
save your work' prompts.

As far as coding, I was working on a cheap Solitaire implementation 
for a class, using awt, swing and vector.  There's probably 15 > x > 10 
'x' classes open, none of them that large.  It had been open for a 
couple of days, though.  I hit F5 and enter to save all the files and the 
dialog came up.  That's it, good luck && happy hunting.

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[DrJava] [ drjava-Bugs-723346 ] DrJava crashes on program exit, refuses to actually close

[SourceForge.net <no...@so...>]

Bugs item #723346, was opened at 2003-04-17 13:19
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
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Category: Interactions
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: DrJava crashes on program exit, refuses to actually close

Initial Comment:
Dr. Java gave me this error when I tried to exit the 
program after working on a project that involved timers.  
I'm not sure why, and I haven't been able to reproduce it.

java.lang.IllegalStateException: tried to quit when no 
slave running and startup not in progress	at 
edu.rice.cs.util.newjvm.AbstractMasterJVM.quitSlave
(AbstractMasterJVM.java:254)	at 
edu.rice.cs.drjava.model.repl.newjvm.MainJVM.killInterpr
eter(MainJVM.java:291)	at 
edu.rice.cs.drjava.model.DefaultGlobalModel.dispose
(DefaultGlobalModel.java:638)	at 
edu.rice.cs.drjava.model.DefaultGlobalModel.quit
(DefaultGlobalModel.java:618)	at 
edu.rice.cs.drjava.ui.MainFrame._quit
(MainFrame.java:1494)	at 
edu.rice.cs.drjava.ui.MainFrame.access$2000
(MainFrame.java:90)	at 
edu.rice.cs.drjava.ui.MainFrame$51.windowClosing
(MainFrame.java:884)	at 
java.awt.Window.processWindowEvent
(Window.java:1107)	at 
javax.swing.JFrame.processWindowEvent
(JFrame.java:266)	at java.awt.Window.processEvent
(Window.java:1066)	at 
java.awt.Component.dispatchEventImpl
(Component.java:3639)	at 
java.awt.Container.dispatchEventImpl
(Container.java:1623)	at 
java.awt.Window.dispatchEventImpl(Window.java:1590)
	at java.awt.Component.dispatchEvent
(Component.java:3480)	at 
java.awt.EventQueue.dispatchEvent
(EventQueue.java:450)	at 
java.awt.EventDispatchThread.pumpOneEventForHierarch
y(EventDispatchThread.java:197)	at 
java.awt.EventDispatchThread.pumpEventsForHierarchy
(EventDispatchThread.java:150)	at 
java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:144)	at 
java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:136)	at 
java.awt.EventDispatchThread.run
(EventDispatchThread.java:99)

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[DrJava] [ drjava-Bugs-719504 ] Interfaces & return types

[SourceForge.net <no...@so...>]

Bugs item #719504, was opened at 2003-04-11 02:57
Message generated for change (Tracker Item Submitted) made by Item Submitter
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Category: DynamicJava
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Geoff Oakham (oakhamg)
Assigned to: Nobody/Anonymous (nobody)
Summary: Interfaces & return types

Initial Comment:
[200...@mb...]

Hi there,

This year, the instructors are U of T choose DrJava as
the 'official ide' and it's been a success.  The only
snag we hit was with type assignments (as mentioned in
the drjava FAQ.. at least, I think it's the same
issue).  What's happening is students are submitting:

    public foo implements Iterator {
        // ...
        String next () {
            //...
        }
        //...
    }

where the regular compiler (which we use during
testing) wants:

    public foo implements Iterator {
        // ...
        Object  next () {
            //...
        }
        //...
    }

I know this artifact is a 'feature' of DynamicJava and
isn't your code (or fault), but I was wondering if I
could submit the issue as a feature request for a
work-around or a bug report to disable some DynamicJava
'features'.

A possible work-around could be an option to compile &
run the code using the 'real' compiler and vm.  I know
this could disable the interactions pane.. but that
shouldn't be a big deal.

Anyways, just wanted to run this by you before I
submitted anything on SourceForge.

Thanks for your time,

Geoff


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[DrJava] [ drjava-Bugs-712309 ] Interactions reset popup

[SourceForge.net <no...@so...>]

Bugs item #712309, was opened at 2003-03-30 19:40
You can respond by visiting: 
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Category: Interactions
Group: Serious
Status: Open
Resolution: None
Priority: 6
Submitted By: Tim Oberg (alphacoder)
Assigned to: Nobody/Anonymous (nobody)
Summary: Interactions reset popup

Initial Comment:
Whenever I open up DrJava, I get a little window that
says the interactions pane has been reset by a call to
system.exit(3), even before I can see the main DrJava
frame.  DrJava is unusable until I click "ok".

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[DrJava] [ drjava-Bugs-709190 ] insertion of text in Interactions window

[SourceForge.net <no...@so...>]

Bugs item #709190, was opened at 2003-03-25 03:31
You can respond by visiting: 
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Category: Interactions
Group: Serious
Status: Open
Resolution: None
Priority: 7
Submitted By: Tim Oberg (alphacoder)
Assigned to: Nobody/Anonymous (nobody)
Summary: insertion of text in Interactions window

Initial Comment:
type:
"12345"
into the interactions window
Now move the cursor to the start of the line (to insert
text) and type
"oooooo"
What you should get is:
"oooooo12345"
What you do get is:
"o1o2o3o4o5o"

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[DrJava] [ drjava-Bugs-707734 ] NullPointer on relative directory (Windows)

[SourceForge.net <no...@so...>]

Bugs item #707734, was opened at 2003-03-21 21:21
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Category: UI: Windows-specific
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Charles Reis (csreis)
Assigned to: Nobody/Anonymous (nobody)
Summary: NullPointer on relative directory (Windows)

Initial Comment:
In Windows (at least on JDK 1.4.0), if you open one
file normally and then try to open another file by
typing in "../directory/FileName.java", the file opens
but causes a NullPointerException when setting the
current directory on the file choosers:

java.lang.NullPointerException

	at
javax.swing.filechooser.FileSystemView.getParentDirectory(FileSystemView.java:430)

	at
javax.swing.JFileChooser.setCurrentDirectory(JFileChooser.java:537)

	at
edu.rice.cs.drjava.ui.MainFrame._setCurrentDirectory(MainFrame.java:2806)

	at
edu.rice.cs.drjava.ui.MainFrame._setCurrentDirectory(MainFrame.java:2815)

	at
edu.rice.cs.drjava.ui.MainFrame.access$7100(MainFrame.java:90)

	at
edu.rice.cs.drjava.ui.MainFrame$ModelListener.activeDocumentChanged(MainFrame.java:3272)

	at
edu.rice.cs.drjava.model.SingleDisplayModel$1.notifyListener(SingleDisplayModel.java:501)

	at
edu.rice.cs.drjava.model.EventNotifier.notifyListeners(EventNotifier.java:103)

	at
edu.rice.cs.drjava.model.SingleDisplayModel._setActiveDoc(SingleDisplayModel.java:495)

	at
edu.rice.cs.drjava.model.SingleDisplayModel.access$300(SingleDisplayModel.java:89)

	at
edu.rice.cs.drjava.model.SingleDisplayModel$SelectionModelListener.valueChanged(SingleDisplayModel.java:523)

	at
javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:187)

	at
javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167)

	at
javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:214)

	at
javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:402)

	at
javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:411)

	at
javax.swing.DefaultListSelectionModel.setSelectionInterval(DefaultListSelectionModel.java:435)

	at
edu.rice.cs.drjava.model.SingleDisplayModel.setActiveDocument(SingleDisplayModel.java:175)

	at
edu.rice.cs.drjava.model.SingleDisplayModel.setActiveDocument(SingleDisplayModel.java:159)

	at
edu.rice.cs.drjava.model.SingleDisplayModel.openFiles(SingleDisplayModel.java:362)

	at edu.rice.cs.drjava.ui.MainFrame.open(MainFrame.java:1301)

	at
edu.rice.cs.drjava.ui.MainFrame._open(MainFrame.java:1296)

	at
edu.rice.cs.drjava.ui.MainFrame.access$600(MainFrame.java:90)

	at
edu.rice.cs.drjava.ui.MainFrame$4.actionPerformed(MainFrame.java:289)

	at
javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1502)

	at
edu.rice.cs.drjava.ui.DefinitionsPane.processKeyEvent(DefinitionsPane.java:435)

	at java.awt.Component.processEvent(Component.java:4830)

	at java.awt.Container.processEvent(Container.java:1525)

	at java.awt.Component.dispatchEventImpl(Component.java:3526)

	at java.awt.Container.dispatchEventImpl(Container.java:1582)

	at java.awt.Component.dispatchEvent(Component.java:3367)

	at
java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1700)

	at
java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:568)

	at
java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:740)

	at
java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:673)

	at
java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:534)

	at java.awt.Component.dispatchEventImpl(Component.java:3396)

	at java.awt.Container.dispatchEventImpl(Container.java:1582)

	at java.awt.Window.dispatchEventImpl(Window.java:1581)

	at java.awt.Component.dispatchEvent(Component.java:3367)

	at java.awt.EventQueue.dispatchEvent(EventQueue.java:445)

	at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191)

	at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144)

	at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)

	at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130)

	at
java.awt.EventDispatchThread.run(EventDispatchThread.java:98)



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[DrJava] [ drjava-Bugs-707139 ] file open does not track directory changes

[SourceForge.net <no...@so...>]

Bugs item #707139, was opened at 2003-03-20 16:12
You can respond by visiting: 
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Category: User interface
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Greg Wilson (gvwilson)
Assigned to: Nobody/Anonymous (nobody)
Summary: file open does not track directory changes

Initial Comment:
Running DrJava 20030306-0533 on Windows XP using 
Sun's j2sdk1.4.1.  Use "File|Open..." or the "Open" 
button to launch the "Open File" dialog.

1. Click on the dialog's "up" folder.  The path in the "File 
name" text entry box does not change to reflect the 
change of directory.

2. Double-click on a folder name --- same problem.

3. Type ".." into the "File name" text entry box and 
press "enter" --- dialog displays contents of directory 
one level up, but leaves ".." in the text entry box.

4. Type ".." again --- text is added to the existing "..", 
leaving "...." in the text entry box.  Press enter --- you're 
somewhere in hyperspace.

5. Cancel the dialog, then use "File|Open..." again.  It 
still has "...." in the text entry box (i.e. you're still 
somewhere in hyperspace).

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[DrJava] [ drjava-Bugs-705349 ] trouble launching drjava after windows java upgrade

[SourceForge.net <no...@so...>]

Bugs item #705349, was opened at 2003-03-17 17:18
You can respond by visiting: 
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Category: Other
Group: Ugly
Status: Open
Resolution: None
Priority: 5
Submitted By: Hal Perkins (hperkins)
Assigned to: Nobody/Anonymous (nobody)
Summary: trouble launching drjava after windows java upgrade

Initial Comment:
This is probably a bug in Sun's JDK installer, but I've 
had similar reports from students, so it may be worth 
documenting, even if nothing can be done.

Environment: Windows XP pro, JDK 1.3.1, 1.4.0, 1.4.1, 
DrJava versions: several of the recent stable builds.

Symptom: Double-clicking the drjava.jar file doesn't 
launch and brings up the "select program to open" 
dialog box.  javaw is not listed in the initial dialog that 
pops up and browsing to javaw.exe and opening it is 
apparently ignored - it still doesn't appear on the list, 
and can't be selected.

I managed to reproduce this, twice, when trying to 
upgrade one machine from jdk 1.3.1_03 to 1.4.1_02 and 
another one from 1.4.0_03 to 1.4.1_02.  Steps:

- Install a different version of the jdk (1.4.1_02) on a 
machine with a previous version installed (1.3.1 or 1.4.0).

- Delete the previous version leaving just 1.4.1_02.  At 
that point double-clicking a jar file won't launch it, and 
javaw can't be selected to launch it.

The only workaround I've discovered is to completely 
delete everything related to Java, including java web 
start, and reinstall the latest version.  (It may be 
necessary to select javaw the first time a .jar file is 
double-clicked, but javaw is available in the list and can 
be selected.)  Deleting the jdk and jre and reinstalling 
those is not enough - if java web start is left on the 
machine, the problem remains.

Again, likely to be a sun installer/uninstaller bug, but if 
someone can figure out what's happening, that'd be 
great.

Hal

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[DrJava] [ drjava-Bugs-704929 ] Windows XP Professional crashes when reset interactions pane

[SourceForge.net <no...@so...>]

Bugs item #704929, was opened at 2003-03-17 11:41
You can respond by visiting: 
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Francisco J. Martín Mateos (fmartin6)
Assigned to: Nobody/Anonymous (nobody)
Summary: Windows XP Professional crashes when reset interactions pane

Initial Comment:
I'm using DrJava in my Java course at University of Seville. I use SuSe   
Linux 8.1 and it works fine, but some students use Windows (98, XP,   
...) and they have informed me that Windows XP Professional   
crashes when the interactions pane is reset.   
   
DrJava version: 20030203-2214   
J2SDK version: j2sdk1.4.1_01 (for windows)  
  
Thanks for your help.  
  
Francisco J. Martín Mateos (fj...@us...) 
Dpt. Computer Science and Artificial Intelligence  
University of Seville  
  

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[DrJava] [ drjava-Feature Requests-704231 ] eclipse plugin

[SourceForge.net <no...@so...>]

Feature Requests item #704231, was opened at 2003-03-15 11:24
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Category: User interface
Group: None
Status: Open
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: eclipse plugin

Initial Comment:
Hey,




I think it would be a lot better to write this as a plugin to 
www.eclipse.org IDE instead.  Just a suggestion.




Thanks,


James


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[DrJava] [ drjava-Bugs-704006 ] Compiler error

[SourceForge.net <no...@so...>]

Bugs item #704006, was opened at 2003-03-14 21:41
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Category: Compiler integration
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Compiler error

Initial Comment:
I was working on a class, and got the following error 
when I tried to compile:

a.lang.IllegalArgumentException: Couldn't find index for 
error CompilerError(file=E:\mytest.java, line=206, 
col=79, msg=')' expected)

	at 
edu.rice.cs.drjava.ui.CompilerErrorPanel$ErrorListPane._
getIndexForError(CompilerErrorPanel.java:465)

	at 
edu.rice.cs.drjava.ui.CompilerErrorPanel$ErrorListPane.s
electItem(CompilerErrorPanel.java:689)

	at 
edu.rice.cs.drjava.ui.CompilerErrorCaretListener.updateH
ighlight(CompilerErrorCaretListener.java:197)

	at 
edu.rice.cs.drjava.ui.CompilerErrorCaretListener.caretUp
date(CompilerErrorCaretListener.java:114)

	at 
javax.swing.text.JTextComponent.fireCaretUpdate
(JTextComponent.java:336)

	at 
javax.swing.text.JTextComponent$MutableCaretEvent.fir
e(JTextComponent.java:3099)

	at 
javax.swing.text.JTextComponent$MutableCaretEvent.st
ateChanged(JTextComponent.java:3121)

	at 
javax.swing.text.DefaultCaret.fireStateChanged
(DefaultCaret.java:634)

	at 
javax.swing.text.DefaultCaret.changeCaretPosition
(DefaultCaret.java:1006)

	at javax.swing.text.DefaultCaret.handleSetDot
(DefaultCaret.java:914)

	at javax.swing.text.DefaultCaret.setDot
(DefaultCaret.java:895)

	at 
javax.swing.text.DefaultEditorKit$NextVisualPositionActi
on.actionPerformed(DefaultEditorKit.java:1572)

	at javax.swing.SwingUtilities.notifyAction
(SwingUtilities.java:1502)

	at 
edu.rice.cs.drjava.ui.DefinitionsPane.processKeyEvent
(DefinitionsPane.java:435)

	at java.awt.Component.processEvent
(Component.java:4831)

	at java.awt.Container.processEvent
(Container.java:1525)

	at java.awt.Component.dispatchEventImpl
(Component.java:3527)

	at java.awt.Container.dispatchEventImpl
(Container.java:1582)

	at java.awt.Component.dispatchEvent
(Component.java:3368)

	at 
java.awt.KeyboardFocusManager.redispatchEvent
(KeyboardFocusManager.java:1700)

	at 
java.awt.DefaultKeyboardFocusManager.dispatchKeyEve
nt(DefaultKeyboardFocusManager.java:568)

	at 
java.awt.DefaultKeyboardFocusManager.preDispatchKey
Event(DefaultKeyboardFocusManager.java:740)

	at 
java.awt.DefaultKeyboardFocusManager.typeAheadAsse
rtions(DefaultKeyboardFocusManager.java:673)

	at 
java.awt.DefaultKeyboardFocusManager.dispatchEvent
(DefaultKeyboardFocusManager.java:534)

	at java.awt.Component.dispatchEventImpl
(Component.java:3397)

	at java.awt.Container.dispatchEventImpl
(Container.java:1582)

	at java.awt.Window.dispatchEventImpl
(Window.java:1586)

	at java.awt.Component.dispatchEvent
(Component.java:3368)

	at java.awt.EventQueue.dispatchEvent
(EventQueue.java:445)

	at 
java.awt.EventDispatchThread.pumpOneEventForHierarc
hy(EventDispatchThread.java:191)

	at 
java.awt.EventDispatchThread.pumpEventsForHierarchy
(EventDispatchThread.java:144)

	at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:138)

	at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:130)

	at java.awt.EventDispatchThread.run
(EventDispatchThread.java:98)

This only happened once, and I couldn't repro it.

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[DrJava] Large refactoring committed

[Charles R. <cr...@ri...>]

Hey--
  I've just committed the rest of the refactoring necessary for the
Eclipse port of the Interactions Pane.  If you have local changes to
commit (and were waiting for the stable release), just be aware of any
conflicts that might arise.  The majority of my changes were in the repl
package (creating an InteractionsModel), but there are a few scattered
changes as well.

  If you run into any conflicts that you're not sure about after running
"ant update" in both util and drjava, let me know and I'll be happy to
walk you through them.

Charlie

[DrJava] DrJava Stable Release

[Charles R. <cr...@ri...>]

  A new stable version of DrJava has just been released.  This release
includes most of the improvements from the recent development releases,
along with several bug fixes since last week's beta release.  Some of the
more notable changes are that the debugger is now always available
(without having to specify tools.jar on the command line) and that DrJava
can use the new Java 1.4.1 for Mac OX X.  Many other improvements have
been added by students in Rice's Comp 312 course on Program Engineering.

  Please be sure to use this version as your primary copy of DrJava.  We
welcome any feedback you have through our feature requests and bug reports
on our SourceForge site.

Thanks!
Charlie Reis

[DrJava] [ drjava-Bugs-703276 ] Feature req: dynamic config reload

[SourceForge.net <no...@so...>]

Bugs item #703276, was opened at 2003-03-13 17:42
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Category: Other
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: Greg Wilson (gvwilson)
Assigned to: Nobody/Anonymous (nobody)
Summary: Feature req: dynamic config reload

Initial Comment:
I would like to have a "reload" option on DrJava, so that 
it could reload option files on the fly.  That way, I could 
(for example) store classpath information that is specific 
to different projects in .drjava files in those projects' 
folders, and reset my classpath simply by reloading the 
file.

(Background: discussed with Charles Reis the fact that 
the examples I'm using in my course are laid out as:

+ csc207
  + exmpl
    + ex01
      - file01.java
      - file02.java
    + ex02
      - file03.java
      - file04.java
      / subdir
        - file05.java
  + lib
    - jdom.jar
    - werk.jar
So, the makefile in csc207/exmpl/ex01 
puts "../../lib/jdom.jar" and "../../lib/werk.jar" in the 
CLASSPATH, so that I can build wherever I've got stuff 
checked out.  Now I go to DrJava, and I want to use a 
relative classpath --- but the browser tool for setting 
classpaths seems to create absolute paths, and doesn't 
save them anywhere, so I either (a) carry absolute paths 
around between (what I think of as) projects, or (b) re-
enter paths each time I fire up DrJava.  Dynamic reload 
would fix this...)

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

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[DrJava] [ drjava-Bugs-703023 ] Runtime Error during testing.

[SourceForge.net <no...@so...>]

Bugs item #703023, was opened at 2003-03-13 07:30
You can respond by visiting: 
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Category: JUnit integration
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Runtime Error during testing.

Initial Comment:
A runtime exception occured!
java.lang.NullPointerException
Please submit a bug report containing the system 
information in the Help>About
window and an account of the actions that caused the 
bug (if known) to http://sourceforge.net/projects/drjava

java.lang.NullPointerException
	at 
edu.rice.cs.drjava.ui.JUnitPanel$JUnitErrorListPane._ins
ertErrorText(JUnitPanel.java:764)

	at 
edu.rice.cs.drjava.ui.JUnitPanel$JUnitErrorListPane._upd
ateWithErrors(JUnitPanel.java:709)

	at 
edu.rice.cs.drjava.ui.JUnitPanel$JUnitErrorListPane.upda
teListPane(JUnitPanel.java:579)

	at edu.rice.cs.drjava.ui.JUnitPanel.reset
(JUnitPanel.java:221)

	at edu.rice.cs.drjava.ui.MainFrame$82.run
(MainFrame.java:3408)

	at java.awt.event.InvocationEvent.dispatch
(InvocationEvent.java:178)

	at java.awt.EventQueue.dispatchEvent
(EventQueue.java:448)

	at 
java.awt.EventDispatchThread.pumpOneEventForHierarc
hy(EventDispatchThread.java:197)

	at 
java.awt.EventDispatchThread.pumpEventsForHierarchy
(EventDispatchThread.java:150)

	at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:144)

	at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:136)

	at java.awt.EventDispatchThread.run
(EventDispatchThread.java:99)




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[DrJava] [ drjava-Feature Requests-702770 ] Edit history in DefinitionsPane

[SourceForge.net <no...@so...>]

Feature Requests item #702770, was opened at 2003-03-13 06:01
You can respond by visiting: 
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Category: Interactions
Group: Small (< 1 pair-week)
Status: Open
Priority: 5
Submitted By: Charles Reis (csreis)
Assigned to: Nobody/Anonymous (nobody)
Summary: Edit history in DefinitionsPane

Initial Comment:
Since the interactions history is essentially Java code
anyway, it would be convenient to edit it in a
DefinitionsPane rather than its own window.  This would
require us to remember that it needs to be saved with a
".hist" extension rather than ".java", but the
indenting and highlighting should be the same as a Java
document.  (This would be a first step towards
supporting non-Java files in the DefinitionsPane area,
such as plain text.)

Note this would also eliminate the odd bug that
JTextAreas on OS X use Ctrl+X, etc for cut, copy,
paste, rather than Command+X, etc.

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

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[DrJava] [ drjava-Bugs-702733 ] Problem with static fields / classpath order

[SourceForge.net <no...@so...>]

Bugs item #702733, was opened at 2003-03-13 04:16
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Category: Interactions
Group: Serious
Status: Open
Resolution: None
Priority: 5
Submitted By: Charles Reis (csreis)
Assigned to: Charles Reis (csreis)
Summary: Problem with static fields / classpath order

Initial Comment:
This is an odd one...

The interactions pane appears to be unable to use
static methods or fields on a subclass of a class in a
separate directory, if the subclass's directory appears
on the "Extra Classpath" before the superclass's directory.

More specifically, suppose A.java is in dir1, and
suppose B.java is a class that extends A and is in
dir2.  Both classes are public and in the default
package.  Give B a static field x and compile the
classes (inside or outside of DrJava).

Now, in DrJava, put dir2 on the "Extra Classpath"
config option before dir1, and then reset the
Interactions Pane (without any documents open).  If you
type "B.x", it complains that B is an undefined class.
 (Actually, it's throwing a NoClassDefFoundError for A,
but this is how it gets displayed in the beta release.)

However, if you type "new B()" or "new B().x", it works
perfectly.  It appears to only be static fields/methods
that cause this problem.

Note that this is not a DynamicJava bug, but it's
probably related to our extension of their code.  (It
does not occur in DynamicJava's GUI.)

Temporary workaround: put the superclass before the
subclass on the "Extra Classpath" config option.

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

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[DrJava] [ drjava-Bugs-702315 ] generic expression evaluation fail

[SourceForge.net <no...@so...>]

Bugs item #702315, was opened at 2003-03-12 10:47
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Category: Compiler integration
Group: Serious
Status: Open
Resolution: None
Priority: 5
Submitted By: Jaime Nino (jnino)
Assigned to: Nobody/Anonymous (nobody)
Summary: generic expression evaluation fail

Initial Comment:
The interactions panel gives the following error:

edu.rice.cs.drjava.model.repl.InteractionsException:
There was a syntax error in the previous input.

when entering an expression that was also compiled
successfully. Specifically, after getting the above
error I proceeded to enter the expression as part of
the class that I wanted to use; in the class the code
produces no error as the compilation is successful but
the same expression yields an error in the interaction
window.

This is the code I wrote while trying the generic
component:

class Pair<T, U> {
  private T first;
  private U second;
  
  public Pair ( T comp1, U comp2){
    first = comp1;
    second = comp2;
  }
  
  public T first(){
    return first;
  }
  
  public U second(){
    return second;
  }
  
  public static void main(String[] args){
    Pair<String, String> p;
    p = new Pair<String, String>( "hello", "there");
    X1 a = new X1();
    Pair<String, X1> q = new Pair<String, X1>("hello",
a);
  }
}

This code compiles successfully.
If I take the first statement in the main and I write
it in the interaction window it produces the error
mentioned.

DrJava version: drjava-stable-20030203.jar
JDK version: 1.4.1_01 with the addition of JSR-14
generic lib and compilation scripts.


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[DrJava] [ drjava-Bugs-701228 ] assert not recognized in OS X 1.4.1

[SourceForge.net <no...@so...>]

Bugs item #701228, was opened at 2003-03-10 15:21
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Category: Compiler integration
Group: Serious
Status: Open
Resolution: None
Priority: 5
Submitted By: Hal Perkins (hperkins)
Assigned to: Nobody/Anonymous (nobody)
Summary: assert not recognized in OS X 1.4.1

Initial Comment:
Just tried out DrJava on the new 1.4.1 release for OS X, 
and I can't get assert to work.  I've enabled assert in the 
Miscellaneous Preferences option dialog, but when I 
compile a small file with an assert statement, I get 
a "cannot resolve symbol: class assert" message.

In DrJava's about>system properties window, 
com.apple.javaws.vmversions shows 1.4.1 and 1.3.1 are 
both available, but java.vm.version shows 1.3.1_03-69.

Please fix it so 1.4.1 is automatically available.  It's fine 
if this requires some simple configuration in a 
preference panel.

Configuration:

DrJava OS X beta 20030306-0533
OS X 10.2.4
OS X Java 1.4.1 production release (via software update, 
installed on top of earlier betas)
OS X Java 1.4.1 developer tools update

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[DrJava] [ drjava-Bugs-700716 ] Not starting up

[SourceForge.net <no...@so...>]

Bugs item #700716, was opened at 2003-03-10 09:23
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Category: Other
Group: Crashes
Status: Open
Resolution: None
Priority: 5
Submitted By: Alexander Docter (monsieurlapin)
Assigned to: Nobody/Anonymous (nobody)
Summary: Not starting up

Initial Comment:
Starting up drjava-beta-20030306.jar with jre 1.3.1 from 
sun , I get the following when trying java -jar drjava-beta-
20030306.jar

java.lang.UnsupportedClassVersionError: 
edu/rice/cs/drjava/platform/WindowsPlatform 
(Unsupported maj
or.minor version 48.0)
        at java.lang.ClassLoader.defineClass0(Native 
Method)
        at java.lang.ClassLoader.defineClass
(ClassLoader.java:486)
        at java.security.SecureClassLoader.defineClass
(SecureClassLoader.java:111)
        at java.net.URLClassLoader.defineClass
(URLClassLoader.java:248)
        at java.net.URLClassLoader.access$100
(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run
(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged
(Native Method)
        at java.net.URLClassLoader.findClass
(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass
(ClassLoader.java:297)
        at sun.misc.Launcher$AppClassLoader.loadClass
(Launcher.java:286)
        at java.lang.ClassLoader.loadClass
(ClassLoader.java:253)
        at java.lang.ClassLoader.loadClassInternal
(ClassLoader.java:313)
        at 
edu.rice.cs.drjava.platform.PlatformFactory.getPlatformS
upport(PlatformFactory.java:91)
        at 
edu.rice.cs.drjava.platform.PlatformFactory.<clinit>
(PlatformFactory.java:54)
        at edu.rice.cs.drjava.config.KeyStrokeOption.format
(KeyStrokeOption.java:145)
        at edu.rice.cs.drjava.config.KeyStrokeOption.format
(KeyStrokeOption.java:54)
        at edu.rice.cs.drjava.config.Option.getDefaultString
(Option.java:88)
        at 
edu.rice.cs.drjava.config.OptionMapLoader.<clinit>
(OptionMapLoader.java:73)
        at 
edu.rice.cs.drjava.config.SavableConfiguration.loadConfig
uration(SavableConfiguration.jav
a:71)
        at 
edu.rice.cs.drjava.config.FileConfiguration.loadConfigurati
on(FileConfiguration.java:66)
        at edu.rice.cs.drjava.DrJava.initConfig
(DrJava.java:266)
        at edu.rice.cs.drjava.DrJava.main(DrJava.java:127)


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