Merge branch '6.1.x'

spring-tx/src/main/java/org/springframework/transaction/interceptor/DefaultTransactionAttribute.java

@@ -206,7 +206,7 @@ public class DefaultTransactionAttribute extends DefaultTransactionDefinition im
 				}
 				catch (RuntimeException ex) {
 					throw new IllegalArgumentException(
-							"Invalid timeoutString value \"" + timeoutString + "\" - cannot parse into int");
+							"Invalid timeoutString value \"" + timeoutString + "\"; " + ex);
 				}
 			}
 		}