| Xtext artifact generation from Ecore model fails when Ecore model refers to another model. [message #1272807] |
Tue, 18 March 2014 20:50  |
 Ernesto Posse
Messages: 438
Registered: March 2011 |
Senior Member |
|
|
Hi. I'm trying to create an Xtext project from an Ecore model which itself references another Ecore model, but when I try to generate the Xtext artifacts, it fails with the following exception (on a minimalistic example, see attached ZIP file):
0 [main] INFO lipse.emf.mwe.utils.StandaloneSetup - Registering platform uri '/Users/eposse/Local/Workspace'
68 [main] ERROR mf.mwe2.launch.runtime.Mwe2Launcher - Problems instantiating module c.LangC: java.lang.reflect.InvocationTargetException
java.lang.RuntimeException: Problems instantiating module c.LangC: java.lang.reflect.InvocationTargetException
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:95)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:62)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:52)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:74)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
Caused by: org.eclipse.emf.common.util.WrappedException: java.lang.reflect.InvocationTargetException
at org.eclipse.emf.mwe2.language.factory.SettingProviderImpl$1$1.setValue(SettingProviderImpl.java:56)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalApplyAssignments(Mwe2ExecutionEngine.java:143)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.inCase(Mwe2ExecutionEngine.java:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:291)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalSwitch(Mwe2ExecutionEngine.java:66)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalApplyAssignments(Mwe2ExecutionEngine.java:142)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.inCase(Mwe2ExecutionEngine.java:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:291)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalSwitch(Mwe2ExecutionEngine.java:66)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.inCase(Mwe2ExecutionEngine.java:80)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:291)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.internalSwitch(Mwe2ExecutionEngine.java:66)
at org.eclipse.emf.mwe2.language.factory.Mwe2ExecutionEngine.create(Mwe2ExecutionEngine.java:62)
at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:93)
... 4 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.eclipse.emf.mwe2.language.factory.SettingProviderImpl$1$1.setValue(SettingProviderImpl.java:54)
... 29 more
Caused by: org.eclipse.emf.mwe.core.ConfigurationException: Couldn't find an interface b.BPackage
at org.eclipse.emf.mwe.utils.StandaloneSetup.addRegisterGeneratedEPackage(StandaloneSetup.java:414)
... 34 more
The minimalistic example contains three projects: a, b and c.
The first (a) contains a single package with a single class A.
The second (b) contains a single package with a class B that inherits from A. I linked a.A via "Right-click -> Load Resource...".
The third (c) contains the Xtext project, created with "New... -> Xtext project from existing Ecore model". The grammar seems mosly correct, except for the line
which causes error. When I replace it with
import "platform:/resource/b/model/b.ecore"
the errors go away and I get only a warning that the imported package is not in the classpath. Is that what is causing the exception above? If so, how do I add the package to the classpath, or how can I import it otherwise? If it is not the cause, what is, and what could be done?
Thanks.
PS: I'm using Eclipse Kepler SR2 with Modeling Tools, Xtext 2.5.3 and no other plugins on Mac OS X 10.9.
|
|
|
|
|
Powered by
FUDForum. Page generated in 0.02918 seconds
] 
Search
Help
Register
Login
Home
