IN PROGRESS - issue BATCH-127: Allow job configuration to control re-entrant behavior

http://opensource.atlassian.com/projects/spring/browse/BATCH-127

SimpleJobRepository.findOrCreateJob now blocks if the transaction isolation level is high enough (see Javadocs).

spring-batch-core/src/main/java/org/springframework/batch/core/domain/JobExecution.java

@@ -232,7 +232,7 @@ public class JobExecution extends Entity {
 	 * @see org.springframework.batch.core.domain.Entity#toString()
 	 */
 	public String toString() {
-		return super.toString()+", job=["+job+"]";
+		return super.toString()+", startTime="+startTime+", endTime="+endTime+", job=["+job+"]";
 	}
 
 	/**