From b0a6f926bd44d1033124ad47aa2cd491c66d7a15 Mon Sep 17 00:00:00 2001
From: Jens Schauder <jschauder@vmware.com>
Date: Fri, 10 Jul 2020 15:01:36 +0200
Subject: [PATCH] DATAJPA-1754 - Checks that the entity passed to save is not
 null.

Before this change a null value would have yielded an ambiguous exception, instead of a proper IllegalArgumentException.

Signed-off-by: Jens Schauder <jschauder@vmware.com>
---
 .../data/jpa/repository/support/SimpleJpaRepository.java        | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/java/org/springframework/data/jpa/repository/support/SimpleJpaRepository.java b/src/main/java/org/springframework/data/jpa/repository/support/SimpleJpaRepository.java
index 6ad9f11e5..3169abe10 100644
--- a/src/main/java/org/springframework/data/jpa/repository/support/SimpleJpaRepository.java
+++ b/src/main/java/org/springframework/data/jpa/repository/support/SimpleJpaRepository.java
@@ -550,6 +550,8 @@ public class SimpleJpaRepository<T, ID> implements JpaRepositoryImplementation<T
 	@Override
 	public <S extends T> S save(S entity) {
 
+		Assert.notNull(entity, "Entity must not be null.");
+
 		if (entityInformation.isNew(entity)) {
 			em.persist(entity);
 			return entity;