Hi Tommaso--
Sorry for the direct email, but you seem to be the expert on combining UIMA and Clerezza. I'm trying to generate RDF from my UIMA AE. I started with the code in RDFCASConsumer.java and modified it to change the directory and file to which the RDF is written. I put this in my AE and deployed it in UIMA, running in my own container. This container does this: AnalysisEngine engine = UIMAFramework.produceAnalysisEngine(...); ClassLoader uimaClassLoader = engine.getResourceManager().getExtensionClassLoader(); Thread thread = Thread.currentThread(); thread.setContextClassLoader(uimaClassLoader); engine.process(cas); When I run I get: Exception in thread "TAService Worker 0" java.lang.LinkageError: loader constraint violation in interface itable initialization: when resolving method "org.apache.xerces.dom.ElementImpl.getSchemaTypeInfo()Lorg/w3c/dom/TypeInfo;" the class loader (instance of org/apache/uima/internal/util/UIMAClassLoader) of the current class, org/apache/xerces/dom/ElementImpl, and the class loader (instance of <bootloader>) for interface org/w3c/dom/Element have different Class objects for the type m/TypeInfo; used in the signature I see several issues in Clerezza about UIMA and classloaders, which you have resolved. There's even a method that gets the classloader to be used for XML parsing. So it seems like you've probably solved this problem related to Xerces and classloaders. However, I can't find any documentation about how to use your fix. Can you tell me what I need to do when creating my analysis engine and setting the classloader in order to avoid this LinkageError? Thanks, Greg Holmberg
