From 1e5882b19c2c8f24e157675c9e75ea42848eb7dd Mon Sep 17 00:00:00 2001
From: Dave Syer <dsyer@gopivotal.com>
Date: Thu, 19 Jun 2014 18:15:44 +0100
Subject: [PATCH] Make copy of job parameters before weeding out
 non-identifying ones

Fixes gh-1125
---
 .../boot/autoconfigure/batch/JobLauncherCommandLineRunner.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/JobLauncherCommandLineRunner.java b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/JobLauncherCommandLineRunner.java
index 06818f50a8..25b212956a 100644
--- a/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/JobLauncherCommandLineRunner.java
+++ b/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/JobLauncherCommandLineRunner.java
@@ -153,7 +153,8 @@ public class JobLauncherCommandLineRunner implements CommandLineRunner,
 					|| previousExecution.getStatus() == BatchStatus.FAILED) {
 				// Retry a failed or stopped execution
 				jobParameters = previousExecution.getJobParameters();
-				for (Entry<String, JobParameter> parameter : additionals.entrySet()) {
+				for (Entry<String, JobParameter> parameter : new HashMap<String, JobParameter>(
+						additionals).entrySet()) {
 					// Non-identifying additional parameters can be added to a retry
 					if (!parameter.getValue().isIdentifying()) {
 						additionals.remove(parameter.getKey());