Problems on Mac OS X

[Craig Ziesman]

I installed Octopus per the instructions. I am using Mac OS X 10.4.6, Eclipse 3.1.2, and Java 1.5.0.

I can create an Octopus project, but I am unable to import any of the sample models. I cannot add an Octopus nature to a Java project. When I try, I get a dialog box that says "The chosen operation is not currently available." The error log shows the message "Could not create action delegate for id: nl.klasse.octopus.codegen.AddNatureAction".

I can view and edit OCL files, but they do not build. When I save after editing, the error log shows the exception:

Warning 2006-05-08 22:08:08.258 nl/klasse/tools/common/StringHelpers
java.lang.NoClassDefFoundError: nl/klasse/tools/common/StringHelpers
    at nl.klasse.octopus.model.internal.ModelReader.readModel(ModelReader.java:62)
    at nl.klasse.octopus.builders.OctopusModelReader.readModel(OctopusModelReader.java:67)
    at nl.klasse.octopus.builders.OctopusModelBuilder.setModel(OctopusModelBuilder.java:143)
    at nl.klasse.octopus.builders.OctopusModelBuilder.fullBuild(OctopusModelBuilder.java:76)
    at nl.klasse.octopus.builders.OctopusModelBuilder.incrementalBuild(OctopusModelBuilder.java:85)
    at nl.klasse.octopus.builders.OctopusModelBuilder.build(OctopusModelBuilder.java:54)
    at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:593)
    at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
    at org.eclipse.core.runtime.Platform.run(Platform.java:783)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:168)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:202)
    at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:231)
    at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
    at org.eclipse.core.runtime.Platform.run(Platform.java:783)
    at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:234)
    at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:253)
    at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:282)
    at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:139)
    at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:200)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:76)

However, the tools plug-in is installed and shows up in the configuration.

Any help would be appreciated, as I am trying to use Octopus for homework related to your book, "The Object Constraint Language, 2nd Edition."

[Jos Warmer]

Craig,

Sorry for the late answer, but I have been too busy to follow this up.  I'll be able to get back to you in the week from June 6.

Jos Warmer

[Jos Warmer]

Hi,
I am using Eclipse 3.1.0 and JDK 1.5.0_04 on Windows XP.  I do not have MacOS available so I cannot recreate your situation.

Are you using the downloadable Eclipse update site ?
Could you provide me with the list of plugins and features installed? Including their version numbers. I can check whether these are allright.

-- Jos

[ghitaik]

Hi,
I have octopus in my application, and I want generate java code, when I try it, a error message say I must add "Java Nature", all I have is Octopus Nature.
How can I do for generate java code?
thank you

[Jos Warmer]

Hi,

You cannot add a Java Nature to a project in Eclipse. Java projects are verey speial in Eclipse and must be created as such.

If you want to use code generation for Octopus you need to create a Java project to start with and then add the Octopus nature to the Java project.

Jos