protected CAS deserialize(String aSerializedCAS, CAS aCAS, XmiSerializationSharedData deserSharedData, boolean deltaCas) throws Exception { if (deltaCas) { uimaSerializer.deserializeCasFromXmi(aSerializedCAS, aCAS, deserSharedData, true, deserSharedData.getMaxXmiId(), AllowPreexistingFS.allow); } else { uimaSerializer.deserializeCasFromXmi(aSerializedCAS, aCAS, deserSharedData, true, -1); } return aCAS; }