Description Stephane Begaudeau 2016-02-04 10:37:25 EST

I have the expression "aql:self.eGet(eStructuralFeature)" but I have failed to provide the variable "eStructuralFeature". In my use case, my variable self is a regular Class from a very simple ecore model. This issue comes from the method EvaluationServices#getEParameters(...) and from this line:

for (EClassifier eClassifier : queryEnvironment.getEPackageProvider().getEClass(object.getClass()))

Because "object" is Nothing with the message "Couldn't find the eStructuralFeature variable".


STACK 0
org.eclipse.acceleo.query.runtime.AcceleoQueryEvaluationException: An internal error occured during evaluation of a query
	at org.eclipse.acceleo.query.runtime.impl.EvaluationServices.callOrApply(EvaluationServices.java:518)
	at org.eclipse.acceleo.query.parser.AstEvaluator.caseCall(AstEvaluator.java:193)
	at org.eclipse.acceleo.query.ast.util.AstSwitch.doSwitch(AstSwitch.java:129)
	at org.eclipse.emf.ecore.util.Switch.doSwitch(Switch.java:53)
	at org.eclipse.emf.ecore.util.Switch.doSwitch(Switch.java:69)
	at org.eclipse.acceleo.query.parser.AstEvaluator.eval(AstEvaluator.java:102)
	at org.eclipse.acceleo.query.runtime.impl.QueryEvaluationEngine.eval(QueryEvaluationEngine.java:52)
	MY CODE AND ECLIPSE AND EQUINOX AND THE REST OF THE WORLD...
Caused by: org.eclipse.acceleo.query.runtime.AcceleoQueryEvaluationException: An internal error occured during evaluation of a query
	at org.eclipse.acceleo.query.runtime.impl.EvaluationServices.call(EvaluationServices.java:296)
	at org.eclipse.acceleo.query.runtime.impl.EvaluationServices.callOrApply(EvaluationServices.java:512)
	... 79 more
Caused by: java.lang.NullPointerException
	at org.eclipse.acceleo.query.runtime.impl.EvaluationServices.getEParameters(EvaluationServices.java:470)
	at org.eclipse.acceleo.query.runtime.impl.EvaluationServices.callEOperation(EvaluationServices.java:319)
	at org.eclipse.acceleo.query.runtime.impl.EvaluationServices.call(EvaluationServices.java:283)
	... 80 more