java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.ocl.ecore.internal.OCLStandardLibraryImpl
	at org.eclipse.ocl.ecore.EcoreEnvironment.getOCLStandardLibrary(EcoreEnvironment.java:271)
	at org.eclipse.ocl.parser.AbstractOCLAnalyzer.booleanLiteralExpCS(AbstractOCLAnalyzer.java:3041)
	at org.eclipse.ocl.parser.AbstractOCLAnalyzer.primitiveLiteralExpCS(AbstractOCLAnalyzer.java:2922)
	at org.eclipse.ocl.parser.AbstractOCLAnalyzer.literalExpCS(AbstractOCLAnalyzer.java:3107)
	at org.eclipse.ocl.parser.AbstractOCLAnalyzer.oclExpressionCS(AbstractOCLAnalyzer.java:1983)
	at org.eclipse.ocl.parser.AbstractOCLAnalyzer.invCS(AbstractOCLAnalyzer.java:1440)
	at org.eclipse.ocl.parser.AbstractOCLAnalyzer.invOrDefCS(AbstractOCLAnalyzer.java:1420)
	at org.eclipse.ocl.parser.OCLAnalyzer.parseInvOrDefCS(OCLAnalyzer.java:266)
	at org.eclipse.ocl.internal.helper.HelperUtil.parseQuery(HelperUtil.java:164)
	at org.eclipse.ocl.internal.helper.OCLHelperImpl.createQuery(OCLHelperImpl.java:176)
	at org.eclipse.emf.query.ocl.conditions.AbstractOCLCondition.<init>(AbstractOCLCondition.java:211)
	at org.eclipse.emf.query.ocl.conditions.BooleanOCLCondition.<init>(BooleanOCLCondition.java:149)
	at org.eclipse.emf.query.ocl.conditions.BooleanOCLCondition.<init>(BooleanOCLCondition.java:107)