Re: [cme-users] CME in Eclipse

[Albert Bachand <albertb@xxxxxxxxx>]

Hi Peri,

I uninstalled all of my JREs and JDKs, made sure all the JavaSoft
registry keys were gone and that no Java executable and/or library was
left in my system32 folder. I then installed the 1.4.2 SDK you pointed
me to. I first started Eclipse normally (no -vm switch) and made sure
that the default compiler was the SDK one. I tried to compose my
concerns: same behaviour as before. I then tried specifying the SDK
java.exe with the -vm switch, made sure the default compiler was setup
correctly, and again got the same behaviour. The problem is apparently
due to something else.

In case it could somehow be related, I also get messages like the
following in the Command Prompt window if I start Eclipse with
java.exe as its vm (as opposed to javaw.exe):

?? Found unit Foo which has no artifact
?? Found unit Foo.Foo() which has no artifact

On the website, I read that ${java.home}/../lib/tools.jar must be
valid path. In that context, is ${java.home} the environment variable
(%JAVA_HOME%) or some internal Eclipse variable?
In the latter case, it sounds like the default compiler should in fact
be set to the JRE folder inside the SDK for tools.jar to be found.
With that in mind I tried several combination of %JAVA_HOME% and
default compiler home but with no luck.

Regards,
Albert

On Mon, 28 Feb 2005 10:39:12 -0500, Peri Tarr <tarr@xxxxxxxxxx> wrote:
> Hi Albert,
> 
> > Here is the output of java -version:
> > java version "1.5.0_01"
> > Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_01-b08)
> > Java HotSpot(TM) Client VM (build 1.5.0_01-b08, mixed mode, sharing)
> 
> Okay, this is diagnostic.  You are running a JRE (Java Runtime
> Environment), not an SDK, and that's the problem.  Fortunately, this is
> easily fixed.  Just go to Sun's site (java.sun.com) and download an SDK
> (the 1.4.2 SDK is here:
> http://dlc.sun.com/jdk/j2sdk-1_4_2_07-windows-i586-p.exe).  Shut down
> Eclipse and all of your browsers (plus anything else that's running Java),
> install the SDK, and this should reset Eclipse to use the SDK, which
> should fix the problem.  But when you bring up Eclipse again after you
> install the SDK, do check the installed JVMs again, and be sure that your
> SDK is selected as the default.
> 
>      Peri
> 
> Albert Bachand <albertb@xxxxxxxxx>
> Sent by: cme-users-admin@xxxxxxxxxxx
> 02/28/2005 10:27 AM
> Please respond to
> cme-users
> 
> To
> cme-users@xxxxxxxxxxx
> cc
> 
> Subject
> Re: [cme-users] CME in Eclipse
> 
> Hi Sian and Perri,
> 
> I am running Windows XP.
> 
> I start Eclipse with the following command:
> D:\Tools\Eclipse\eclipse-3.0.1-CME-0.2.0\eclipse.exe -vm
> D:\Tools\Java\jdk1.5.0_01\bin\java
> 
> My PATH environment variable contains the following:
> Path=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;D:\tools\Java\jdk1.5.0_01\bin;
> 
> Here is the output of java -version:
> java version "1.5.0_01"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_01-b08)
> Java HotSpot(TM) Client VM (build 1.5.0_01-b08, mixed mode, sharing)
> 
> In "Installed JREs", the only item I have is "jdk1.5.0_01" which has
> the following home:
> D:\Tools\Java\jdk1.5.0_01
> 
> I've attached a stacktrace from my log file. It seems the problem can
> have two causes either a CRRationalizedSemanticError or a
> NullPointerException in addClasspathEntries.
> 
> Regards,
> Albert
> 
> On Mon, 28 Feb 2005 09:43:26 -0500, Peri Tarr <tarr@xxxxxxxxxx> wrote:
> > Hi Albert,
> >
> > Can you confirm that you do have an SDK installed and that it's what
> your
> > projects are built using, rather than a JDK?  (You can tell by typing
> > "java -version" in a command prompt.  With the version information, it
> > should tell you whether it's a JRE or an SDK.)  Then, if it looks like
> you
> > have an SDK, go into Eclipse's Windows->Preferences, and check the
> > installed JDKs.  Make sure that the default one is your SDK.  I can't
> tell
> > you how many times people find that they have a JRE installed that they
> > didn't know about, and that Eclipse ends up using it as the default.
> Sian
> > is right that this behavior is almost always due to the presence of a
> JRE
> > instead of a full SDK.
> >
> >      Peri
> >
> >
> > Albert Bachand <albertb@xxxxxxxxx>
> > Sent by: cme-users-admin@xxxxxxxxxxx
> > 02/28/2005 09:33 AM
> > Please respond to
> > cme-users
> >
> > To
> > cme-users@xxxxxxxxxxx
> > cc
> >
> > Subject
> > Re: [cme-users] CME in Eclipse
> >
> >
> > Hi Sian,
> >
> > Thank you for your reply. I tried your solution and started eclipse
> > with the JDK's javaw but I still get the same behaviour. I then tried
> > starting eclipse with java.exe to see if anything is outputted to the
> > console and this is what I get whenever I press the Finish button:
> >
> > Unhandled event loop exception
> > Reason:
> > java.lang.NullPointerException
> >
> > Any ideas?
> >
> > Regards,
> > Albert
> >
> > On Mon, 28 Feb 2005 12:56:40 +0000, Sian January <SJANUARY@xxxxxxxxxx>
> > wrote:
> > >
> > > Hi Albert,
> > >
> > > You need to be running Eclipse with an SDK rather than a JRE.  You can
> > do
> > > this by starting eclipse with the arguments  -vm
> > c:\j2sdk1.4.2_05\bin\javaw
> > > (where j2sdk1.4.2_05 is the directory in which you have a Java SDK
> > > installed.  In Windows you can edit the shortcut to the program by
> right
> > > clicking and then clicking 'Properties' and pasting the above into the
> > > "Target" field after "..eclipse.exe".  Alternatively you can append
> the
> > > location of your SDK installation to your 'Path' environment variable
> > via
> > > Control Panel > System or on the command line.
> > >
> > > Hope this helps,
> > >
> > > Sian
> > >
> > >
> > >
> > >
> > >
> > >  Albert Bachand <albertb@xxxxxxxxx>
> > > Sent by: cme-users-admin@xxxxxxxxxxx
> > >
> > > 28/02/2005 12:24
> > >
> > > Please respond to
> > >  cme-users
> > >
> > >
> > > To cme-users@xxxxxxxxxxx
> > >
> > > cc
> > >
> > > Subject [cme-users] CME in Eclipse
> > >
> > >
> > >
> > >
> > >
> > > Hello,
> > >
> > >  I'm having some trouble running the CME in Eclipse. I can build
> > >  queries and model concerns without any trouble but I can't compose
> any
> > >  concerns. When I get to the last page of the "Compose Concern" wizard
> > >  and click Finish, nothing happens. The dialog stays there and I'm
> > >  forced to click Cancel to dismiss it. If I then open Explorer, I can
> > >  see that a new Eclipse project was created but it is empty. The
> > >  behaviour is always the same regardless of the concerns I am trying
> to
> > >  compose. Am I doing something wrong? I'm using Eclipse 3.0.1 and CME
> > >  0.2.0 on Windows XP with JDK 1.5.
> > >
> > >  Regards,
> > >  Albert
> > >  _______________________________________________
> > >  cme-users mailing list
> > >  cme-users@xxxxxxxxxxx
> > >  http://dev.eclipse.org/mailman/listinfo/cme-users
> > >
> > >
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> > cme-users@xxxxxxxxxxx
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> >
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> > cme-users@xxxxxxxxxxx
> > http://dev.eclipse.org/mailman/listinfo/cme-users
> >
> 
> 
>