SSDM-9409 : Updating Jython to get JDK11 working

openbis/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/JythonManagedPropertyEvaluatorTest.java

@@ -77,7 +77,7 @@ public class JythonManagedPropertyEvaluatorTest extends AssertJUnit
             fail("EvaluatorException expected");
         } catch (EvaluatorException ex)
         {
-            assertEquals("SyntaxError: (\"no viable alternative at input '='\", "
+            assertEquals("SyntaxError: (\"no viable alternative at input '\\\\n\\\\n'\", "
                     + "('<string>', 1, 2, 'a =\\n'))", ex.getMessage());
         }
     }