[antlr-interest] Help w/ ANTLR task inside ANT/Netbeans .. .please

[Matthew Ford]

Tomcat recommends not using Java V1.4 with Tomcat as it has class path
loading problems.
Not sure if this is fixed in Release Candidate, or fixed in Tomcat V4.0.1
I am using V1.3_03 with Tomcat OK after having trouble with V1.4 (which I
could not reproduce for a Java Bug)
Sorry not very helpful,  just try Java V1.3 and see if that works.
matthew
----- Original Message -----
From: "Jeff Vincent" <JVincent at Novell.Com>
To: <antlr-interest at yahoogroups.com>
Sent: Tuesday, February 12, 2002 6:47 AM
Subject: RE: [antlr-interest] Help w/ ANTLR task inside ANT/Netbeans ..
.please


> I should have mentioned that I built a .jar w/ all antlr classes (used
> mkdebugjar.bat) copied it to the netbeans directory
> "C:\netbeans-3.3.1\modules\patches\org-apache-tools-ant-module" AND into
> lib, lib/ext, modules, modules/ext with the same error.
>
> It is interesting that it appears to be spawning a new thread/process
> using the following command w/ results:
>
> java antlr.Tool -o
> H:\Projects\jXPOZ\src\com\novell\ndstest\engine\parser\generatedSource
> H:\Projects\jXPOZ\src\com\novell\ndstest\engine\parser\jXPOZLexer.g
> Execute:Java13CommandLauncher: java antlr.Tool -o
> H:\Projects\jXPOZ\src\com\novell\ndstest\engine\parser\generatedSource
> H:\Projects\jXPOZ\src\com\novell\ndstest\engine\parser\jXPOZLexer.g
> java.lang.NoClassDefFoundError: antlr/Tool
> Exception in thread "main"
> com/novell/ndstest/engine/parser/ParserGen.xml [15] java failed with
> return code 1
>         at
> org.apache.tools.ant.taskdefs.Execute.runCommand(Execute.java:461)
>         at
> org.apache.tools.ant.taskdefs.optional.ANTLR.execute(ANTLR.java:116)
>         at org.apache.tools.ant.Task.perform(Task.java:217)
>         at org.apache.tools.ant.Target.execute(Target.java:184)
>         at org.apache.tools.ant.Target.performTasks(Target.java:202)
>         at
> org.apache.tools.ant.Project.executeTarget(Project.java:601)
>         at
> org.apache.tools.ant.Project.executeTargets(Project.java:560)
>         at
>
org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:277)
>         at
> org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:118)
> BUILD FAILED
> Total time: 0 seconds
>
> It doesn't set the class path upon execution of the command which is
> why it seems to only recognize the CLASSPATH set in the environment.
> "Java.exe" doesnt know any better, much less anything about Netbeans.
>
> >>> mzukowski at bco.com 02/11/02 10:57AM >>>
> antlr.jar does not include the antlr.Tool classes.  It is a jar for
> the
> runtime classes which a parser built with antlr needs.  Try creating
> your
> own jar from the antlr directory, then see if that works.
>
> Monty
>
> > -----Original Message-----
> > From: Jeff Vincent [mailto:JVincent at Novell.Com]
> > Sent: Monday, February 11, 2002 9:55 AM
> > To: antlr-interest at yahoogroups.com
> > Subject: [antlr-interest] Help w/ ANTLR task inside ANT/Netbeans . .
> .
> > please
> >
> >
> > I need some perspective if someone would be so kind as to
> > enlighten me.
> >
> > The answers for this specific issue have gone unanswered in my
> archive
> > searches.
> >
> > I am using ANT for the first time within NetBeans 3.3.1 (ANT v1.4.1)
> > and am attempting to use the ANTLR optional task.  I have placed
> > ANTLR.jar everywhere I can find a .jar file in my NetBeans
> > installation,
> > including the path specified in the ANT help for optional tasks
> > (NBINSTALL/modules/patches/org-apache-tools-ant-module/).
> >
> > Regardless of where I put the antlr.jar file, it always says
> > "java.lang.NoClassDefFoundError: antlr/Tool".  The only way around
> it
> > that I have found so far is to open a shell, set my shell
> environment
> > variable CLASSPATH to point to the antlr.jar and then launch
> Netbeans
> > from the shell.
> >
> > I have tried to set the classpath inside the ANT script, but it
> seems
> > to ignore it.  It also ignores all my netbeans properties that all
> > have
> > the antlr.jar included (mounted filesystems).  I can't seem to
> > override
> > the "java.class.path" property.  It just seems that it is either
> > ignoring any properties available when invoking "java" to process my
> > .g
> > files.
> >
> > What do I need to set in order for the ANTLR task to see (and use)
> the
> > antlr.jar file, short of setting the environment variable?  This
> > project
> > is shared and I want to put the necessary .jar references in the ANT
> > task and not require a bunch of external configuration before
> > launching
> > netbeans.
> >
> > A lot of past e-mail generically refers to setting the ANT classpath
> > property for use with the "java" task, setting fork to "yes" and
> > passing
> > in the new classpath.  If that is the only way of using a
> > task-specific
> > classpath, what good is the ANTLR task (or any other task that
> > requires
> > modifications to classpath)?  Traditional makefiles allow building
> and
> > setting environment variables temporarily without affecting the
> global
> > environment during the make process.  It seems that so far, ANT
> > disallows this.  Why?
> >
> > I hope I am missing something simple.
> >
> > Thanks,
> >
> > Jeff
> >
> >
> >
> >
> >
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> >
> >
> >
>
>
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