diff --git a/execution/src/main/java/org/springframework/batch/execution/launch/SimpleJobLauncher.java b/execution/src/main/java/org/springframework/batch/execution/launch/SimpleJobLauncher.java
index 85840b8c7..afa003e41 100644
--- a/execution/src/main/java/org/springframework/batch/execution/launch/SimpleJobLauncher.java
+++ b/execution/src/main/java/org/springframework/batch/execution/launch/SimpleJobLauncher.java
@@ -178,6 +178,9 @@ public class SimpleJobLauncher implements JobLauncher, InitializingBean,
 	public void afterPropertiesSet() throws Exception {
 		if (jobExecutorFacade==null) {
 			logger.debug("Using SimpleJobExecutorFacade");
+			Assert.notNull(jobConfigurationLocator);
+			Assert.notNull(jobExecutor);
+			Assert.notNull(jobRepository);
 			SimpleJobExecutorFacade jobExecutorFacade = new SimpleJobExecutorFacade();
 			jobExecutorFacade.setJobConfigurationLocator(jobConfigurationLocator);
 			jobExecutorFacade.setJobExecutionListeners(listeners);