Created attachment 58385 [details]
stacktrace

It comes from a tooltip over some field. Can you please provide the source and the field you're evaluating?

Sorry, I've closed the session in the meantime and I don't remember what my mouse has been pointing at. I'll add the info if it occurs again.

I've reproduced it again.

1) Open Editor.Options module
2) Debug module from step 1)
4) In the debugged IDE, invoke Tools|Options|Fonts&Colors|[...] button
5) Place BP on ColorModel:311
6) Change Font Type in Font dialog from 4)
7) Confirm form dialog
8) Wait until BP hit
9) Point yout mouse to 312:testProfileName field

Created attachment 58669 [details]
gestures

Created attachment 58670 [details]
ide log

This issue has already 5 duplicates 

Huh, what's Editor.Options module??

grep -r ColorModel main, gave me, besides others, options.editor/src/org/netbeans/modules/options/colors/ColorModel.java

Reproduced, the problematic field is "testProfileName".
There is one more problem, variables from the outer method - defaults, highlightings, syntaxColorings - are reported as
unknown.

Eh, I meant options.editor of course. Sorry :)

Fixed: changeset:   75273:6635865247db
http://hg.netbeans.org/main/rev/6635865247db

I was able to reproduce it in 6.1:

Product Version: NetBeans IDE Dev (Build 200804082140)
Java: 1.6.0_04; Java HotSpot(TM) Client VM 10.0-b19
System: SunOS version 5.11 running on x86; UTF-8; en_US (nb)

http://statistics.netbeans.org/analytics/detail.do?id=45094

Is the fix in 6.1 branch?

The fix is in 6.1 branch, I've verified that.

gorrus, we need the steps to reproduce this - the source code and the place where did you evaluated the field. I hope
it's not confidential.

Sure, here is how I reproduce the problem:
- run netbeans(1) on your machine(1)
- run netbeans(2) with debug on a separate machine(2)
- attach debugger from netbeans(1) to machine(2)
- in netbeans(2) open Window->Debugging->Watches
- in netbeans(1) set breakpoint at openide.explorer/src/org/openide/explorer/view/TreeTableView.java:1593
  ( inside getTableCellRendererComponent method. It is called when you click on column header in a table)
- click on column header inside Watches window in netbeans(2)
- debugger in netbeans(1) stopped on the breakpoint
- try to get the tooltip with the variable value for any class memeber (for example treeColumnProperty) and get the
exception

It is still there in (I changed java and ide build slightly):

Product Version: NetBeans IDE Dev (Build 200804090901)
Java: 1.6.0_05; Java HotSpot(TM) Client VM 10.0-b19
System: SunOS version 5.11 running on x86; UTF-8; en_US (nb)

Raising priority to P1.

Thanks for reproducible steps. However I believe that this is not a showstopper. NB 5.x and 6.0 had a lot of issues with
expression evaluation and they were not considered as showstoppers. Decreasing to P2.

In described case if I have watch on this member I get an exception every debugger step.
I will not argue about priorities, just wanted to see this fixed in 6.1.

This issue has already 20 duplicates 

We did not take into account subclasses of object which contains the evaluated fields. It should be fixed now in trunk:
changeset:   79039:5344d2156a92
http://hg.netbeans.org/main/rev/5344d2156a92

Issue '130144' Integrated in NB_Trunk_Production #154 : http://hg.netbeans.org/main/rev/5344d2156a92,
 with comment: #130144: When searching for object that contains the evaluated field, take subclasses of the outer class into account.

Verified

Product Version: NetBeans IDE Dev (Build 200804250004)
Java: 1.6.0_05; Java HotSpot(TM) Client VM 10.0-b19
System: Windows XP version 5.1 running on x86; Cp1250; cs_CZ (nb)

merged to release61_fixes repository

changeset:   77442:54e97f89a549
user:        mentlicher@netbeans.org
date:        Wed Apr 23 23:50:02 2008 +0200
summary:     #130144: When searching for object that contains the evaluated field, take subclasses of the outer class
into account.

Verified on Patch1.

I can reproduce it with

Product Version: NetBeans IDE Dev (Build 080716)
Java: 1.6.0_03; Java HotSpot(TM) Client VM 1.6.0_03-b05
System: Linux version 2.6.22-14-generic running on i386; UTF-8; en_US (nb)

The exception occurs whenever I move mouse cursor over a java statement e.g. refactoring.setRefactorFields at
setParameters(boolean checkOnly), EncapsulateFieldUI.java, refactoring.java project.

    private Problem setParameters(boolean checkOnly) {
        refactoring.setRefactorFields(panel.getAllFields());
        refactoring.setMethodModifiers(panel.getMethodModifiers());

Jiri, I can not reproduce this "Invalid field" error when following your description. Where did you have the program
counter during evaluation of the refactoring.setRefactorFields?

I've found one case where "Invalid field" is thrown, but that seems to be a different problem. It's thrown when you try
to evaluate a private field of a super class.

This is not reproducible for me as well. I have stopped debugger at breakpoint set in EncapsulateFieldUI.setParameters()
method and tried to invoke tooltips for all possible identifiers of the method's body. No IllegalArgumentException has
been thrown.

As you can read from the logger (http://statistics.netbeans.org/analytics/detail.do?id=77178) I did several Step Over
actions. I am not sure if I was looking there via the Debugging view -> Make Current. Sorry, I am not able to reproduce
it again.

There was no pointer to http://statistics.netbeans.org/analytics/detail.do?id=77178 from this issue!

I can not read anything relevant from that anyway, it's not apparent where was the debugger stopped, where was your
program counter. Thus, it's impossible to reproduce.

It is listed as a duplicate of the http://statistics.netbeans.org/exceptions/detail.do?id=34864. See 'URL:' field.

My experience is that these debugger bugs are random between IDE sessions and I see a lot of different exceptions from
the debugger lately. Thus I do not remember all circumstances. If you have some logging that I could turn on please let
me know. I will provide more relevant details then.

O.K. Thanks. This bug is not random, I've found just one case when it's reproducible:

public class InvalidField {
    private int field = 0;

    private static class Inner {
        public Inner() {
            int a = 0;// field
        }
    }

    public static void main(String[] args) {
        new Inner();
    }
}

When the program counter is at line "int a = 0;" then when "field" variable is evaluated, the "Invalid field" exception
is thrown. I'll fix that case.

I've fixed in problem with the described use-case in changeset:   91030:22584cb65360
Please reopen if this happens again. I will need the location where debugger was stopped and the string that was evaluated.
http://hg.netbeans.org/main/rev/22584cb65360

If there are additional code changes (trunk changesets) to be included in Patch 3, 
ensure its status is "VERIFIED" before nominating. Please note NetBeans 6.1 Patch3
cut-off is going to happen on close of business August 5th. 

Verified in trunk. 

I've ported the changeset http://hg.netbeans.org/main/rev/22584cb65360 into release61_fixes repository as
http://hg.netbeans.org/release61_fixes/rev/80628106ce96 and http://hg.netbeans.org/release61_fixes/rev/6b3c1e14601b
(fix-up of manually applied changeset).

i have this problem with
NetBeans IDE 6.1 (Build 200804211638)

collinm, if this exception still occurs, please provide steps to reproduce. Otherwise we can not fix it. Thanks.

collinm, have you applied all available patches? (BTW. patches don't change IDE build number so it's hard say if you
applied any patch). You can use steps described at
http://hg.netbeans.org/main/raw-file/63c0534adb36/usersguide/javahelp/org/netbeans/modules/usersguide/configure/modules/autoupdate.html
for the IDE update, if needed.

found steps to reproduce in:
Product Version: NetBeans IDE Dev (Build 200810060201)
Java: 1.6.0_10-rc; Java HotSpot(TM) Client VM 11.0-b14
System: Windows Vista version 6.0 running on x86; Cp1250; cs_CZ (nb)

place caret on line 129 of MemoryView.java -> invoke run to cursor -> invoke step into -> hold mouse over some
non-primitive variable (to get baloon tooltip) -> exception

Reproduced. Thanks for the reproducible steps.

The problem is, that the reference to the outer class is not yet defined when entering the constructor of the inner class.

Fixed in changeset:   105159:209b78feb8ba
http://hg.netbeans.org/main/rev/209b78feb8ba

Please verify.

Integrated into 'main-golden', will be available in build *200810070201* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
Changeset: http://hg.netbeans.org/main/rev/209b78feb8ba
User: mentlicher@netbeans.org
Log: #130144 - Report an error when we're not able to find the enclosing object instead of evaluating the field/method on a bad instance.

Verified fixed on:
Product Version: NetBeans IDE Dev (Build 200810070201)
Java: 1.6.0_10-rc; Java HotSpot(TM) Client VM 11.0-b14
System: Windows Vista version 6.0 running on x86; Cp1250; cs_CZ (nb)

I've ported the changeset http://hg.netbeans.org/main/rev/209b78feb8ba into release61_fixes repository as
http://hg.netbeans.org/release61_fixes/rev/b1400e3bf201