removing some dead code and fixing failing integ tests

Author: erosb

core/src/main/java/org/everit/json/schema/CombinedSchema.java

@@ -171,15 +171,6 @@ public Collection<Schema> getSubschemas() {
         return subschemas;
     }
 
-    private ValidationException getFailure(final Schema schema, final Object subject) {
-        try {
-            schema.validate(subject);
-            return null;
-        } catch (ValidationException e) {
-            return e;
-        }
-    }
-
     @Override void accept(Visitor visitor) {
         visitor.visitCombinedSchema(this);
     }

core/src/main/java/org/everit/json/schema/ValidatingVisitor.java

@@ -109,12 +109,12 @@ private static boolean isNull(Object obj) {
         try {
             criterion.validate(subschemas.size(), matchingCount);
         } catch (ValidationException e) {
-            throw new ValidationException(combinedSchema,
+            failureReporter.failure(new ValidationException(combinedSchema,
                     new StringBuilder(e.getPointerToViolation()),
                     e.getMessage(),
                     failures,
                     e.getKeyword(),
-                    combinedSchema.getSchemaLocation());
+                    combinedSchema.getSchemaLocation()));
         }
     }