diff --git a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/SetSessionUserTest.java b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/SetSessionUserTest.java
index b9a1a311a65ad30a5044c57ac487c0bd7f90a7ac..7a3924a49514b38732a0fbc47b21fc467a807df5 100644
--- a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/SetSessionUserTest.java
+++ b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/SetSessionUserTest.java
@@ -70,8 +70,8 @@ public class SetSessionUserTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: None of method roles '[INSTANCE_ADMIN]' "
-                    + "could be found in roles of user 'observer'.", ex.getMessage());
+            assertEquals("Authorization failure: ERROR: \"None of method roles '[INSTANCE_ADMIN]' "
+                    + "could be found in roles of user 'observer'.\".", ex.getMessage());
         }
     }
 
@@ -158,8 +158,8 @@ public class SetSessionUserTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: None of method roles '[INSTANCE_ADMIN]' "
-                    + "could be found in roles of user 'observer'.", ex.getMessage());
+            assertEquals("Authorization failure: ERROR: \"None of method roles '[INSTANCE_ADMIN]' "
+                    + "could be found in roles of user 'observer'.\".", ex.getMessage());
         }
     }
 }
diff --git a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/api/v1/GeneralInformationServiceTest.java b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/api/v1/GeneralInformationServiceTest.java
index 7303a50b439ac9722ebdcf2179aca7058284b77a..dd17849995dc595cdcef1c2298034db0c638ac89 100644
--- a/openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/api/v1/GeneralInformationServiceTest.java
+++ b/openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/api/v1/GeneralInformationServiceTest.java
@@ -146,7 +146,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -175,7 +176,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -204,7 +206,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -239,7 +242,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -271,7 +275,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -310,7 +315,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -429,7 +435,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -454,7 +461,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -479,7 +487,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }
@@ -502,7 +511,8 @@ public class GeneralInformationServiceTest extends SystemTestCase
             fail("AuthorizationFailureException expected");
         } catch (AuthorizationFailureException ex)
         {
-            assertEquals("Authorization failure: User 'observer' does not have enough privileges.",
+            assertEquals(
+                    "Authorization failure: ERROR: \"User 'observer' does not have enough privileges.\".",
                     ex.getMessage());
         }
     }