RESOLVED - issue BATCH-344: A JobExecution does not need a start time until it actually starts

http://jira.springframework.org/browse/BATCH-344

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

@@ -37,7 +37,7 @@ public class JobExecution extends Entity {
 
 	private BatchStatus status = BatchStatus.STARTING;
 
-	private Date startTime = new Date(System.currentTimeMillis());
+	private Date startTime = null;
 
 	private Date endTime = null;