Exception in thread "main" java.lang.NullPointerException at org.eclipse.persistence.jaxb.compiler.AnnotationsProcessor.buildReferenceProperty(AnnotationsProcessor.java:2407) at org.eclipse.persistence.jaxb.compiler.AnnotationsProcessor.buildNewProperty(AnnotationsProcessor.java:1933) at org.eclipse.persistence.jaxb.compiler.AnnotationsProcessor.getFieldPropertiesForClass(AnnotationsProcessor.java:1877) at org.eclipse.persistence.jaxb.compiler.AnnotationsProcessor.getFieldPropertiesForClass(AnnotationsProcessor.java:1859) at org.eclipse.persistence.jaxb.compiler.AnnotationsProcessor.getPropertiesForClass(AnnotationsProcessor.java:1845) at org.eclipse.persistence.jaxb.compiler.AnnotationsProcessor.buildTypeInfo(AnnotationsProcessor.java:816) at org.eclipse.persistence.jaxb.compiler.AnnotationsProcessor.postBuildTypeInfo(AnnotationsProcessor.java:734) at org.eclipse.persistence.jaxb.compiler.AnnotationsProcessor.processClassesAndProperties(AnnotationsProcessor.java:280) at org.eclipse.persistence.jaxb.compiler.Generator.<init>(Generator.java:106) at org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext$SchemaContextInput.createContextState(DynamicJAXBContext.java:317) at org.eclipse.persistence.jaxb.JAXBContext.<init>(JAXBContext.java:182) at org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext.<init>(DynamicJAXBContext.java:71) at org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContextFactory.createContextFromXSD(DynamicJAXBContextFactory.java:279) at EbicsSchemaHelper.getJaxbContext(EbicsSchemaHelper.java:23) at EbicsSchemaHelper.main(EbicsSchemaHelper.java:31) 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 com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)