No Persistence provider for EntityManager named

Question

I have my persistence xml with the same name using TopLink under the META-INF directory  Then  I have my code calling it with   EntityManagerFactory emfdb   Persistence createEntityManagerFactory  agisdb      Yet  I got the following error message    2009-07-21 09 22 41 018  main  ERROR - No Persistence provider for EntityManager named agisdb javax persistence PersistenceException  No Persistence provider for EntityManager named agisdb     at javax persistence Persistence createEntityManagerFactory Persistence java 89      at javax persistence Persistence createEntityManagerFactory Persistence java 60    Here is the persistence xml    lt  xml version  1 0  encoding  UTF-8   gt   lt persistence xmlns  http   java sun com xml ns persistence  version  1 0  gt       lt persistence-unit name  agisdb  gt           lt class gt com agis livedb domain AddressEntity lt  class gt           lt class gt com agis livedb domain TrafficCameraEntity lt  class gt           lt class gt com agis livedb domain TrafficPhotoEntity lt  class gt           lt class gt com agis livedb domain TrafficReportEntity lt  class gt           lt properties gt               lt property name  toplink jdbc url  value  jdbc mysql   localhost 3306 agisdb   gt               lt property name  toplink jdbc driver  value  com mysql jdbc Driver   gt               lt property name  toplink jdbc user  value  root   gt               lt property name  toplink jdbc password  value  password   gt           lt  properties gt       lt  persistence-unit gt   lt  persistence gt    It should have been in the classpath  Yet  I got the above error

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Faced the same issue and couldn t find solution for quite a long time  In my case it helped to replace   lt provider gt org hibernate ejb HibernatePersistence lt  provider gt    with   lt provider gt org hibernate jpa HibernatePersistenceProvider lt  provider gt    Took solution from here

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Verify the peristent unit name   lt persistence-unit name  com myapp model jpa      transaction-type  RESOURCE LOCAL  gt      public static final String PERSISTENCE UNIT NAME    com myapp model jpa   Persistence createEntityManagerFactory   PERSISTENCE UNIT NAME

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I faced the same problem  but on EclipseLink version 2 5 0   I solved my problem by adding yet another jar file which was necessarily  javax persistence 2 1 0 v201304241213 jar jar    Jars needed       - javax persistence 2 1 0 v201304241213 jar      - eclipselink jar      - jdbc jar  depending on the database used    I hope this helps

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You have to use the absolute path of the file otherwise this will not work  Then with that path we build the file and pass it to the configuration   Throws HibernateException  class  fun getSessionFactory     SessionFactory       return Configuration                    configure getFile                     buildSessionFactory           private fun getFile canonicalName  String   File       val absolutePathCurrentModule   System getProperty  quot user dir quot       val pathFromProjectRoot   absolutePathCurrentModule dropLastWhile   it              val absolutePathFromProjectRoot    quot   pathFromProjectRoot module-name src main resources  canonicalName quot      println  quot Absolute Path of secret-hibernate cfg xml   absolutePathFromProjectRoot quot       return File absolutePathFromProjectRoot     GL Source

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Try also copying the persistence xml manually to the folder  lt project root gt  bin META-INF  This fixed the problem in Eclipse Neon with EclipseLink 2 5 2 using a simple plug-in project

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Quick advice    check if persistence xml is in your classpath check if hibernate provider is in your classpath   With using JPA in standalone application  outside of JavaEE   a persistence provider needs to be specified somewhere  This can be done in two ways that I know of    either add provider element into the persistence unit   lt provider gt org hibernate ejb HibernatePersistence lt  provider gt   as described in correct answere by Chris  https   stackoverflow com a 1285436 784594  or provider for interface javax persistence spi PersistenceProvider must be specified as a service  see here  http   docs oracle com javase 6 docs api java util ServiceLoader html  this is usually included when you include hibernate or another JPA implementation  into your classpath   In my case  I found out that due to maven misconfiguration  hibernate-entitymanager jar was not included as a dependency  even if it was a transient dependency of other module

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I had the same problem  I removed  quot  ManagedBean quot  from my bean class now working

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Make sure you have created persistence xml file under the  src  folder  I created under the project folder and that was my problem

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I needed this in my pom xml file    lt dependency gt       lt groupId gt org hibernate lt  groupId gt       lt artifactId gt hibernate-entitymanager lt  artifactId gt       lt version gt 4 2 6 Final lt  version gt   lt  dependency gt

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In my case  previously I use idea to generate entity by database schema  and the persistence xml is automatically generated in src main java META-INF and according to https   stackoverflow com a 23890419 10701129  I move it to src main resources META-INF  also marked META-INF as source root  It works for me   But just simply marking original META-INF that is  src main java META-INF  as source root  doesn t work  which confuses me   and this is the structre

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In my case it was about mistake in two properties as below  When I changed them    No Persistence provider for EntityManager named    disappered   So you could try test connection with your properties to check if everything is correct    lt property name  javax persistence jdbc url  value          gt   lt property name  javax persistence jdbc password  value          gt    Strange error  I was totally confused because of it

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I m some years late to the party here but I hit the same exception while trying to get Hibernate 3 5 1 working with HSQLDB and a desktop JavaFX program  I got it to work with the help of this thread and a lot of trial and error  It seems you get this error for a whole variety of problems   No Persistence provider for EntityManager named mick   I tried building the hibernate tutorial examples but because I was using Java 10 I wasn t able to get them to build and run easily  I gave up on that  not really wanting to waste time fixing its problems  Setting up a module-info java file  Jigsaw  is another hairball many people haven t discovered yet   Somewhat confusing is that these  below  were the only two files I needed in my build gradle file  The Hibernate documentation isn t clear about exactly which Jars you need to include  Entity-manager was causing confusion and is no longer required in the latest Hibernate version  and neither is javax persistence-api  Note  I m using Java 10 here so I had to include the jaxb-api  to get around some xml-bind errors  as well as add an entry for the java persistence module in my module-info java file   Build gradle     https   mvnrepository com artifact org hibernate hibernate-core compile  org hibernate hibernate-core 5 3 1 Final       https   mvnrepository com artifact javax xml bind jaxb-api compile group   javax xml bind   name   jaxb-api   version   2 3 0    Module-info java     Used for HsqlDB - add the hibernate-core jar to build gradle too requires java persistence    With hibernate 5 3 1 you don t need to specify the provider  below  in your persistence xml file  If one is not provided the Hibernate provider is chosen by default    lt provider gt org hibernate jpa HibernatePersistenceProvider lt  provider gt    The persistence xml file should be located in the correct directory so   src main resources META-INF persistence xml   Stepping through the hibernate source code in the Intellij debugger  where it checks for a dialect  also threw the exact same exception  because of a missing dialect property in the persistence xml file  I added this  add the correct one for your DB type     lt property name  hibernate dialect  value  org hibernate dialect HSQLDialect   gt    I still got the same exception after this  so stepping through the debugger again in Intellij revealed the test entity I was trying to persist  simple parent-child example  had missing annotations for the OneToMany  ManyToOne relationships  I fixed this and the exception went away and my entities were persisted ok   Here s my full final persistence xml    lt persistence xmlns  http   xmlns jcp org xml ns persistence           xmlns xsi  http   www w3 org 2001 XMLSchema-instance           xsi schemaLocation  http   xmlns jcp org xml ns persistence             http   xmlns jcp org xml ns persistence persistence 2 1 xsd           version  2 1  gt    lt persistence-unit name  mick  transaction-type  RESOURCE LOCAL  gt       lt description gt          Persistence unit for the JPA tutorial of the Hibernate Getting Started Guide      lt  description gt        lt  -- Provided in latest release of hibernate      lt provider gt org hibernate jpa HibernatePersistenceProvider lt  provider gt      -- gt        lt class gt com micks scenebuilderdemo database Parent lt  class gt       lt class gt com micks scenebuilderdemo database Child lt  class gt        lt properties gt           lt property name  javax persistence jdbc driver  value  org hsqldb jdbc JDBCDriver   gt            lt property name  javax persistence jdbc url                    value  jdbc hsqldb file   database database DB CLOSE DELAY -1 MVCC TRUE   gt            lt property name  javax persistence jdbc user  value  sa   gt           lt property name  javax persistence jdbc password  value     gt            lt property name  hibernate show sql  value  true   gt           lt property name  hibernate hbm2ddl auto  value  create   gt           lt property name  hibernate dialect  value  org hibernate dialect HSQLDialect   gt       lt  properties gt    lt  persistence-unit gt    lt  persistence gt    I probably wasted about half a day on this gem  My advice would be to start very simple - a single test entity with one or two fields  as it seems like this exception can have many causes

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You need to add the hibernate-entitymanager-x jar in the classpath   In Hibernate 4 x  if the jar is present  then no need to add the org hibernate ejb HibernatePersistence in persistence xml file

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I just copied the META-INF into src and worked

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The question has been answered already  but just wanted to post a tip that was holding me up  This exception was being thrown after previous errors  I was getting this   property toplink platform class name is deprecated  property toplink target-database should be used instead    Even though I had changed the persistence xml to include the new property name    lt property name  toplink target-database  value  oracle toplink platform database oracle Oracle10Platform   gt    Following the message about the deprecated property name I was getting the same PersistenceException like above and a whole other string of exceptions  My tip  make sure to check the beginning of the exception sausage   There seems to be a bug in Glassfish v2 1 1 where redeploys or undeploys and deploys are not updating the persistence xml  which is being cached somewhere  I had to restart the server and then it worked

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I also had this error but the issue was the namespace uri in the persistence xml   I replaced http   xmlns jcp org xml ns persistence to http   java sun com xml ns persistence and the version 2 1 to 2 0   It s now working

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In an OSGi-context  it s necessary to list your persistence units in the bundle s MANIFEST MF  e g   JPA-PersistenceUnits  my-persistence-unit   Otherwise  the JPA-bundle won t know your bundle contains persistence units   See http   wiki eclipse org EclipseLink Examples OSGi Developing with EclipseLink OSGi in PDE

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It happenes when the entity manager is trying to point to many persistence units  Do the following steps    open the related file in your editor  provided your project has been closed in your IDE  delete all the persistence and entity manager related code save the file open the project in your IDE now bind the db or table of your choice

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There is another point  If you face this problem within an Eclipse RCP environment  you might have to change the Factory generation from Persistence createEntityManagerFactory to new PersistenceProvider   createEntityManagerFactory  see ECF for a detailed discussion on this

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Hibernate 5 2 5 Jar Files Required in the class path  This is within a required folder of Hibernate 5 2 5 Final release  It can be downloaded from http   hibernate org orm downloads    antlr-2 7 7  cdi-api-1 1  classmate-1 3 0 dom4j-1 6 1 el-api-2 2 geronimo-jta 1 1 spec-1 1 1 hibernate-commons-annotation-5 0 1 Final hibernate-core-5 2 5 Final hibernate-jpa-2 1-api-1 0 0 Final jandex-2 0 3 Final javassist-3 20 0-GA javax inject-1 jboss-interceptor-api 1 1 spec-1 0 0 Beta1 jboss-logging-3 3 0 Final jsr250-api-1 0   Create an xml file  persistence xml  in   YourProject src META-INF persistence xml  persistence xml   lt  xml version  1 0  encoding  UTF-8   gt    lt persistence xmlns  http   xmlns jcp org xml ns persistence           xmlns xsi  http   www w3 org 2001 XMLSchema-instance           xsi schemaLocation  http   xmlns jcp org xml ns persistence          http   xmlns jcp org xml ns persistence persistence 2 1 xsd           version  2 1  gt    lt persistence-unit name  sample  gt        lt class gt org pramod data object UserDetail lt  class gt       lt exclude-unlisted-classes gt true lt  exclude-unlisted-classes gt       lt properties gt           lt property name  hibernate connection driver class  value  com mysql jdbc Driver   gt           lt property name  hibernate dialect  value  org hibernate dialect MySQLDialect   gt           lt property name  hibernate connection url  value  jdbc mysql   localhost 3306 hibernate project   gt           lt property name  hibernate connection username  value  root   gt           lt property name  hibernate connection password  value  root   gt           lt property name  hibernate hbm2ddl auto  value  create-drop   gt           lt property name  hibernate show sql  value  true   gt           lt property name  hibernate format sql  value  false   gt            lt property name  hibernate cache use second level cache  value  false   gt            lt property name  hibernate archive autodetection  value  true   gt       lt  properties gt   lt  persistence-unit gt       please note down the information mentioned in the  lt  persistance   tag and version should be 2 1  please note the name  lt  persistance-unit   tag  name is mentioned as  sample   This name needs to be used exactly same while loading your    EntityManagerFactor   Persistance createEntityManagerFactory  sample      sample  can be changed as per your naming convention   Now create a Entity class  with name as per my example UserDetail  in the package org pramod data object  UserDetail java  package org pramod data object   import javax persistence Column  import javax persistence Entity  import javax persistence Id  import javax persistence Table    Entity  Table name    user detail   public class UserDetail        Id      Column name  user id       private int id       Column name  user name       private String userName       public int getId             return id            public void setId int id            this id   id            public String getUserName             return userName            public void setUserName String userName            this userName   userName                Override     public String toString            return  UserDetail  id     id      userName     userName                  Now create a class with main method    HibernateTest java  package org pramod hibernate   import javax persistence EntityManager  import javax persistence EntityManagerFactory  import javax persistence Persistence  import org pramod data object UserDetail   public class HibernateTest       private static EntityManagerFactory entityManagerFactory       public static void main String   args             UserDetail user   new UserDetail            user setId 1           user setUserName  Pramod Sharma             try               entityManagerFactory   Persistence createEntityManagerFactory  sample                EntityManager entityManager   entityManagerFactory createEntityManager                entityManager getTransaction   begin                entityManager persist  user                entityManager getTransaction   commit                System out println  successfull                entityManager close              catch  Exception e                e printStackTrace                          Output will be  UserDetail  id 1  userName Pramod Sharma  Hibernate  drop table if exists user details Hibernate  create table user details  user id integer not null  user name varchar 255   primary key  user id   Hibernate  insert into user details  user name  user id  values        successfull

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Make sure that the persistence xml file is in the directory   lt webroot gt  WEB-INF classes META-INF

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Put the  hibernate-entitymanager jar  in the classpath of application  For newer versions  you should use  hibernate-core jar  instead of the deprecated hibernate-entitymanager  If you are running through some IDE  like Eclipse  Project Properties - gt  Java Build Path - gt  Libraries    Otherwise put it in the  lib of your application

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After  lt persistence-unit name  agisdb  gt   define the persistence provider name    lt provider gt org hibernate ejb HibernatePersistence lt  provider gt

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Had the same issue   but this actually worked for me    mvn install -e  -Dmaven repo local  WORKSPACE  repository    NB   The maven command above will reinstall all your project dependencies from scratch  Your console will be loaded with verbose logs due to the network request maven is making

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Maybe you defined one provider like  lt provider gt org hibernate ejb HibernatePersistence lt  provider gt  but referencing another one in jar  That happened with me  my persistence xml provider was openjpa but I was using eclipselink in my classpath  Hope this help

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If there are different names in Persistence createEntityManagerFactory  JPAService   in different classes than you get the error  By refactoring it is possible to get different names which was in my case  In one class the auto-generated Persistence createEntityManagerFactory  JPAService  in private void initComponents    ContactsTable class differed from Persistence createEntityManagerFactory  JPAServiceExtended   in DBManager class

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If you re using Maven  it could be that it is not looking at the right place for the META-INF folder  Others have mentioned copying the folder  but another way that worked for me was to tell Maven where to look for it  using the  lt resources gt  tag  See  http   maven apache org plugins maven-resources-plugin examples resource-directory html

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Mine got resolved by adding   info in persistence xml  e g   lt provider gt org eclipse persistence jpa PersistenceProvider lt  provider gt  and then making sure you have the library on classpath e g  in Maven add dependency like   lt dependency gt     lt groupId gt org eclipse persistence lt  groupId gt     lt artifactId gt eclipselink lt  artifactId gt     lt version gt 2 5 0 lt  version gt   lt  dependency gt

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If you are using Eclipse make sure that exclusion pattern does not remove your persistence xml from source folders on build path    Go to Properties -  Java Build Path -  Source tab Check your exclusion pattern which is located atMyProject src main java - gt  Excluded   lt your pattern gt tree node Optionally  set it to Excluded   None  by selecting the node and clicking Edit    button on the left

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You need the following jar files in the classpath    antlr-2 7 6 jar  commons-collections-3 1 jar dom4j-1 6 1 jar  hibernate-commons-annotations-4 0 1 Final jar  hibernate-core-4 0 1 Final jar  hibernate-entitymanager jar  hibernate-jpa-2 0-api-1 0 0 Final jar  javassist-3 9 0 jar  jboss-logging-3 1 1 GA jar   jta-1 1 jar  slf4j-api-1 5 8 jar  xxx-jdbc-driver jar

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Corner case  if you are using m2Eclipse  it automatically puts in excludes on your resources folders  Then when you try to run tests inside eclipse  the subsequent absence of persistence xml will produce this error

[java] No Persistence provider for EntityManager named

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