What package contains org/eclipse/ocl/helper/OCLSyntaxHelper?

Question

What package do I need to install in Eclipse to resolve org/eclipse/ocl/helper/OCLSyntaxHelper? I can't find the OCLSyntaxHelper class in an Eclipse repo.

Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/ocl/helper/OCLSyntaxHelper at org.eclipse.ocl.ecore.OCL.newInstance(OCL.java:127) at RefOntoUML.impl.ElementImpl.(ElementImpl.java:581) at RefOntoUML.impl.RefOntoUMLFactoryImpl.createPackage(RefOntoUMLFactoryImpl.java:278) at RefOntoUML.util.RefOntoUMLFactoryUtil.createPackage(RefOntoUMLFactoryUtil.java:55) at myPackage.MyFirstProgrammaticOntoUMLDiagram.CreateOntoUMLDiagram(MyFirstProgrammaticOntoUMLDiagram.java:40) at myPackage.MyFirstProgrammaticOntoUMLDiagram.main(MyFirstProgrammaticOntoUMLDiagram.java:32) Caused by: java.lang.ClassNotFoundException: org.eclipse.ocl.helper.OCLSyntaxHelper at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 6 more

Answer 1

I installed the Eclipse Modeling tools. All is well.