ACS-1033 : Spring upgrade to 5.3.2 (#213)

- Update test as per 5de549d7d4
- before spring 5.3.0, AbstractFallbackSQLExceptionTranslator was translating org.postgresql.util.PSQLException as UncategorizedSQLException - now it returns null (ref. e9cded560d (diff-c6aa1c6a4b11e8a722808e945c4c5b6ef471c42871c7ce830554dde81ad7f2c2L89))

Co-authored-by: CezarLeahu <35226487+CezarLeahu@users.noreply.github.com>

core/src/main/java/org/alfresco/util/transaction/SpringAwareUserTransaction.java

@@ -19,6 +19,8 @@
 package org.alfresco.util.transaction;
 
 import java.lang.reflect.Method;
+import java.util.Collection;
+import java.util.Collections;
 
 import javax.transaction.HeuristicMixedException;
 import javax.transaction.HeuristicRollbackException;
@@ -135,6 +137,8 @@ public class SpringAwareUserTransaction
     private long threadId = Long.MIN_VALUE;
     /** make sure that we clean up the thread transaction stack properly */
     private boolean finalized = false;
+
+    private Collection<String> labels = Collections.emptyList();
     
     /**
      * Creates a user transaction that defaults to {@link TransactionDefinition#PROPAGATION_REQUIRED}.
@@ -200,6 +204,21 @@ public class SpringAwareUserTransaction
         return null;
     }
 
+    /**
+     * Associate one or more labels with this transaction attribute.
+     * <p>This may be used for applying specific transactional behavior
+     * or follow a purely descriptive nature.
+     */
+    public void setLabels(Collection<String> labels) {
+        this.labels = labels;
+    }
+    
+    @Override
+    public Collection<String> getLabels()
+    {
+        return this.labels;
+    }
+
     /**
      * The {@link UserTransaction } must rollback regardless of the error.  The
      * {@link #rollback() rollback} behaviour is implemented by simulating a caught