Early log entry for async EntityManagerFactory initialization failure

Closes gh-26093

Author: jhoeller

spring-orm/src/main/java/org/springframework/orm/jpa/AbstractEntityManagerFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -193,8 +193,8 @@ public String getPersistenceUnitName() {
 	 * {@code Persistence.createEntityManagerFactory} (if any).
 	 * <p>Can be populated with a String "value" (parsed via PropertiesEditor) or a
 	 * "props" element in XML bean definitions.
-	 * @see javax.persistence.Persistence#createEntityManagerFactory(String, java.util.Map)
-	 * @see javax.persistence.spi.PersistenceProvider#createContainerEntityManagerFactory(javax.persistence.spi.PersistenceUnitInfo, java.util.Map)
+	 * @see javax.persistence.Persistence#createEntityManagerFactory(String, Map)
+	 * @see javax.persistence.spi.PersistenceProvider#createContainerEntityManagerFactory(PersistenceUnitInfo, Map)
 	 */
 	public void setJpaProperties(Properties jpaProperties) {
 		CollectionUtils.mergePropertiesIntoMap(jpaProperties, this.jpaPropertyMap);
@@ -204,8 +204,8 @@ public void setJpaProperties(Properties jpaProperties) {
 	 * Specify JPA properties as a Map, to be passed into
 	 * {@code Persistence.createEntityManagerFactory} (if any).
 	 * <p>Can be populated with a "map" or "props" element in XML bean definitions.
-	 * @see javax.persistence.Persistence#createEntityManagerFactory(String, java.util.Map)
-	 * @see javax.persistence.spi.PersistenceProvider#createContainerEntityManagerFactory(javax.persistence.spi.PersistenceUnitInfo, java.util.Map)
+	 * @see javax.persistence.Persistence#createEntityManagerFactory(String, Map)
+	 * @see javax.persistence.spi.PersistenceProvider#createContainerEntityManagerFactory(PersistenceUnitInfo, Map)
 	 */
 	public void setJpaPropertyMap(@Nullable Map<String, ?> jpaProperties) {
 		if (jpaProperties != null) {
@@ -400,10 +400,13 @@ private EntityManagerFactory buildNativeEntityManagerFactory() {
 					String message = ex.getMessage();
 					String causeString = cause.toString();
 					if (!message.endsWith(causeString)) {
-						throw new PersistenceException(message + "; nested exception is " + causeString, cause);
+						ex = new PersistenceException(message + "; nested exception is " + causeString, cause);
 					}
 				}
 			}
+			if (logger.isErrorEnabled()) {
+				logger.error("Failed to initialize JPA EntityManagerFactory: " + ex.getMessage());
+			}
 			throw ex;
 		}