RESOLVED - issue BATCH-1406: Avoid deadlock with database pool and multithreaded step when throttle limit is too high.

No need to save the step execution in TaskletStep at all.

spring-batch-core/src/main/java/org/springframework/batch/core/step/tasklet/TaskletStep.java

@@ -383,9 +383,6 @@ public class TaskletStep extends AbstractStep {
 						semaphore.release();
 					}
 					locked = false;
-					if (!committed) {
-						getJobRepository().update(stepExecution);
-					}
 				}
 
 				chunkListener.afterChunk();