diff --git a/org.springframework.orm/src/main/java/org/springframework/orm/jpa/LocalContainerEntityManagerFactoryBean.java b/org.springframework.orm/src/main/java/org/springframework/orm/jpa/LocalContainerEntityManagerFactoryBean.java
index 6774691c979..da80e700099 100644
--- a/org.springframework.orm/src/main/java/org/springframework/orm/jpa/LocalContainerEntityManagerFactoryBean.java
+++ b/org.springframework.orm/src/main/java/org/springframework/orm/jpa/LocalContainerEntityManagerFactoryBean.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2011 the original author or authors.
+ * Copyright 2002-2012 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.
@@ -123,6 +123,17 @@ public class LocalContainerEntityManagerFactoryBean extends AbstractEntityManage
 		this.internalPersistenceUnitManager.setPersistenceXmlLocation(persistenceXmlLocation);
 	}
 
+	/**
+	 * Uses the specified persistence unit name as the name of the default
+	 * persistence unit, if applicable.
+	 * <p><b>NOTE: Only applied if no external PersistenceUnitManager specified.</b>
+	 */
+	@Override
+	public void setPersistenceUnitName(String persistenceUnitName) {
+		super.setPersistenceUnitName(persistenceUnitName);
+		this.internalPersistenceUnitManager.setDefaultPersistenceUnitName(persistenceUnitName);
+	}
+
 	/**
 	 * Set whether to use Spring-based scanning for entity classes in the classpath
 	 * instead of using JPA's standard scanning of jar files with <code>persistence.xml</code>
diff --git a/org.springframework.orm/src/main/java/org/springframework/orm/jpa/persistenceunit/DefaultPersistenceUnitManager.java b/org.springframework.orm/src/main/java/org/springframework/orm/jpa/persistenceunit/DefaultPersistenceUnitManager.java
index 36d446b81e1..807b8ae2d7f 100644
--- a/org.springframework.orm/src/main/java/org/springframework/orm/jpa/persistenceunit/DefaultPersistenceUnitManager.java
+++ b/org.springframework.orm/src/main/java/org/springframework/orm/jpa/persistenceunit/DefaultPersistenceUnitManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2011 the original author or authors.
+ * Copyright 2002-2012 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.
@@ -55,6 +55,7 @@ import org.springframework.jdbc.datasource.lookup.JndiDataSourceLookup;
 import org.springframework.jdbc.datasource.lookup.MapDataSourceLookup;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.ObjectUtils;
+import org.springframework.util.ResourceUtils;
 
 /**
  * Default implementation of the {@link PersistenceUnitManager} interface.
@@ -328,7 +329,7 @@ public class DefaultPersistenceUnitManager
 	/**
 	 * Prepare the PersistenceUnitInfos according to the configuration
 	 * of this manager: scanning for <code>persistence.xml</code> files,
-	 * parsing all matching files, configurating and post-processing them.
+	 * parsing all matching files, configuring and post-processing them.
 	 * <p>PersistenceUnitInfos cannot be obtained before this preparation
 	 * method has been invoked.
 	 * @see #obtainDefaultPersistenceUnitInfo()
@@ -404,6 +405,12 @@ public class DefaultPersistenceUnitManager
 							String className = reader.getClassMetadata().getClassName();
 							if (matchesFilter(reader, readerFactory)) {
 								scannedUnit.addManagedClassName(className);
+								if (scannedUnit.getPersistenceUnitRootUrl() == null) {
+									URL url = resource.getURL();
+									if (ResourceUtils.isJarURL(url)) {
+										scannedUnit.setPersistenceUnitRootUrl(ResourceUtils.extractJarFileURL(url));
+									}
+								}
 							}
 						}
 					}
diff --git a/org.springframework.orm/src/main/java/org/springframework/orm/jpa/persistenceunit/PersistenceUnitReader.java b/org.springframework.orm/src/main/java/org/springframework/orm/jpa/persistenceunit/PersistenceUnitReader.java
index f8d474ea18f..d2460ec94c1 100644
--- a/org.springframework.orm/src/main/java/org/springframework/orm/jpa/persistenceunit/PersistenceUnitReader.java
+++ b/org.springframework.orm/src/main/java/org/springframework/orm/jpa/persistenceunit/PersistenceUnitReader.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2010 the original author or authors.
+ * Copyright 2002-2012 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.
@@ -43,7 +43,7 @@ import org.springframework.util.xml.DomUtils;
 import org.springframework.util.xml.SimpleSaxErrorHandler;
 
 /**
- * Internal helper class for reading <code>persistence.xml</code> files.
+ * Internal helper class for reading JPA-compliant <code>persistence.xml</code> files.
  *
  * @author Costin Leau
  * @author Juergen Hoeller
@@ -227,7 +227,7 @@ class PersistenceUnitReader {
 	/**
 	 * Parse the unit info DOM element.
 	 */
-	protected SpringPersistenceUnitInfo parsePersistenceUnitInfo(Element persistenceUnit, String version) throws IOException { // JC: Changed
+	protected SpringPersistenceUnitInfo parsePersistenceUnitInfo(Element persistenceUnit, String version) throws IOException {
 		SpringPersistenceUnitInfo unitInfo = new SpringPersistenceUnitInfo();
 
 		// set JPA version (1.0 or 2.0)
diff --git a/org.springframework.orm/src/test/java/org/springframework/orm/jpa/eclipselink/eclipselink-manager.xml b/org.springframework.orm/src/test/java/org/springframework/orm/jpa/eclipselink/eclipselink-manager.xml
index 625605e8278..a2e4f06ab81 100644
--- a/org.springframework.orm/src/test/java/org/springframework/orm/jpa/eclipselink/eclipselink-manager.xml
+++ b/org.springframework.orm/src/test/java/org/springframework/orm/jpa/eclipselink/eclipselink-manager.xml
@@ -5,6 +5,10 @@
 
 	<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
 		<property name="persistenceXmlLocation" value="org/springframework/orm/jpa/domain/persistence.xml"/>
+		<!--
+		<property name="persistenceUnitName" value="Person"/>
+		<property name="packagesToScan" value="org.springframework.orm.jpa.domain"/>
+		-->
 		<property name="dataSource" ref="dataSource"/>
 		<property name="jpaVendorAdapter">
 			<bean class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter">