#1115 - Switch to UIMA v3

- Force all tests run through surefire to use the old UIMAv2 FeatureStructure string serialization

dkpro-core-testing-asl/src/main/java/de/tudarmstadt/ukp/dkpro/core/testing/DkproTestContext.java

@@ -51,7 +51,8 @@ protected void starting(Description aDescription)
         methodName = aDescription.getMethodName();
         System.out.println("\n=== " + methodName + " =====================");
 
-        // V2 FS toString needed for CasDumpWriter
+        // V2 FS toString needed for CasDumpWriter. Also see comment in the root-level pom.xml
+        // file where this property is globally set for all surefire runs
         System.setProperty(FeatureStructureImplC.V2_PRETTY_PRINT, "true");
 
         // Route logging through SLF4J

pom.xml

@@ -626,6 +626,18 @@
           <configuration>
             <systemPropertyVariables>
               <dkpro.core.testCachePath>${dkpro.core.testCachePath}</dkpro.core.testCachePath>
+              <!-- 
+                UIMAv3 changes the default string serialization of feature structures which we rely
+                on in the CasDumpWriter. To minimize the differences between the DKPro Core UIMAv2
+                and UIMAv3 branches, we force UIMAv3 to use the old serialization. We also do this
+                in the DkproTestContext, in particular since your IDE usually won't pick up the
+                property we set here. But we also set it here because whether or not setting the
+                value in DkproTestContext has an effect depends on the order in which the tests
+                are executed. I.e. if a loading the FeatureStructureImplC class is executed while
+                the property has not been set yet, then it is impossible for a later test to turn
+                it on.
+               -->
+              <uima.v2_pretty_print_format>true</uima.v2_pretty_print_format>
             </systemPropertyVariables>
           </configuration>
         </plugin>