javax naming NameNotFoundException Name is not bound in this Context Unable to find

Question

I m trying to find out why my web application throws a   javax naming NameNotFoundException  Name  flexeraDS  is not bound in this Context  Unable to find  flexeraDS     when a sister one from which I m copying the configuration quietly runs   I have    create from netbeans a new persistence by right clicking and selecting  new persistence   I don t care about the actual values I give but I just need for the persistence xml file to be created in the right directory  edited my context xml as below matching the one from working sister project edited my web xml to contain a resource DataSource as shown below edited my persistence xml as below again matching the same values which on the sister project work  added all libraries present in the other project inside the lib folder of mine and adding them also from NetBeans to be correctly put inside war    context xml   lt  xml version  1 0  encoding  UTF-8   gt   lt Context antiJARLocking  true  path   PetLogin  gt     lt ResourceLink global  ds flexeraDS  name  ds flexeraDS  type  javax sql DataSource   gt   lt  Context gt    web xml   lt  xml version  1 0  encoding  UTF-8   gt   lt web-app      gt   lt resource-ref gt           lt description gt DB Connection lt  description gt           lt res-ref-name gt ds flexeraDS lt  res-ref-name gt           lt res-type gt javax sql DataSource lt  res-type gt           lt res-auth gt Container lt  res-auth gt       lt  resource-ref gt   lt  web-app gt    persistence xml   lt  xml version  1 0  encoding  UTF-8   gt   lt persistence version  1 0               xmlns  http   java sun com xml ns persistence  xmlns xsi  http   www w3 org 2001 XMLSchema-instance               xsi schemaLocation  http   java sun com xml ns persistence http   java sun com xml ns persistence persistence 1 0 xsd   gt       lt persistence-unit name  flexerajpa  gt           lt provider gt org eclipse persistence jpa PersistenceProvider lt  provider gt           lt non-jta-data-source gt java  comp env ds flexeraDS lt  non-jta-data-source gt           lt properties gt                lt property name  eclipselink ddl-generation  value  create-tables    gt               lt property name  eclipselink ddl-generation output-mode                        value  database    gt               lt property name  eclipselink weaving  value  static    gt               lt property name  eclipselink logging level  value  WARNING    gt           lt  properties gt       lt  persistence-unit gt   lt  persistence gt    Now my syster project some-how manages to create its database folder inside apache-tomcat-7 0 40 bin exampleDB on startup while mine doesn t create it and throws an error as above   The code where the error is thrown is the first time I connect to the database   EntityManager entityManager   PersistenceProvider createEntityManager      where the PersistenceProvider class is   public final class PersistenceProvider        private static Map lt String  Object gt  lOptions   new HashMap lt String  Object gt          static               lOptions put PersistenceUnitProperties CACHE SHARED DEFAULT   false              private static EntityManagerFactory factory   Persistence              createEntityManagerFactory  flexerajpa   lOptions        private PersistenceProvider                                return             public static EntityManager createEntityManager                 return factory createEntityManager                           return             public static Metamodel getMetamodel                 return factory getMetamodel              I m out of possible reasons for this   if anyone has any suggestion  Thank you

User · Answer

ugh  just to iterate over my own case  which gave out approximately the same error - in the Resource declaration  server xml  make sure to NOT omit driverClassName  and that e g  for Oracle it is  oracle jdbc OracleDriver   and that the right JAR file  e g  ojdbc14 jar  exists in  CATALINA HOME  lib

User · Answer

Ok found out the Tomcat file server xml must be configured as well for the data source to work  So just add    lt Resource  auth  Container   driverClassName  org apache derby jdbc EmbeddedDriver   maxActive  20   maxIdle  10   maxWait  -1   name  ds flexeraDS   type  javax sql DataSource   url  jdbc derby flexeraDB create true       gt

User · Answer

In Tomcat 8 0 44 I did this  create the JNDI on Tomcat s server xml between the tag  GlobalNamingResources  For example    x000D   x000D   lt GlobalNamingResources gt  x000D       lt  -- Editable user database that can also be used by x000D           UserDatabaseRealm to authenticate users x000D      -- gt  x000D     lt  -- Other previus resouces -- gt  x000D       lt Resource auth  Container  driverClassName  org postgresql Driver  global  jdbc your jndi   x000D      maxActive  100  maxIdle  20  maxWait  1000  minIdle  5  name  jdbc your jndi  password  your password   x000D      type  javax sql DataSource  url  jdbc postgresql   localhost 5432 your database user postgres  username  database username   gt  x000D     lt  GlobalNamingResources gt  x000D   x000D   x000D   In your web application you need a link to that resource  ResourceLink       x000D   x000D   lt  xml version  1 0  encoding  UTF-8   gt  x000D   lt Context reloadable  true   gt  x000D      lt ResourceLink name  jdbc your jndi  x000D        global  jdbc your jndi  x000D        auth  Container  x000D        type  javax sql DataSource    gt  x000D   lt  Context gt  x000D   x000D   x000D    So if you re using Hiberte with spring you can tell to him to use the JNDI in your persistence xml     x000D   x000D   lt  xml version  1 0  encoding  UTF-8   gt  x000D   lt persistence xmlns xsi  http   www w3 org 2001 XMLSchema-instance  x000D   xsi schemaLocation  http   java sun com xml ns persistence http   java sun com xml ns persistence persistence 2 0 xsd  x000D   version  2 0  xmlns  http   java sun com xml ns persistence  gt  x000D    lt persistence-unit name  UNIT NAME  transaction-type  RESOURCE LOCAL  gt  x000D     lt provider gt org hibernate ejb HibernatePersistence lt  provider gt  x000D   x000D     lt properties gt  x000D      lt property name  javax persistence jdbc driver    value  org postgresql Driver    gt  x000D      lt property name  hibernate dialect  value  org hibernate dialect PostgreSQL82Dialect    gt  x000D      x000D      lt  --   lt property name  hibernate jdbc time zone  value  UTC   gt -- gt  x000D      lt property name  hibernate hbm2ddl auto  value  update    gt  x000D      lt property name  hibernate show sql  value  false    gt  x000D      lt property name  hibernate format sql  value  true   gt       x000D     lt  properties gt  x000D    lt  persistence-unit gt  x000D   lt  persistence gt  x000D   x000D   x000D    So in your spring xml you can do that    x000D   x000D   lt bean id  postGresDataSource  class  org springframework jndi JndiObjectFactoryBean  gt  x000D      lt property name  jndiName  value  java comp env jdbc your jndi    gt  x000D     lt  bean gt  x000D        x000D           lt bean id  entityManagerFactory  class  org springframework orm jpa LocalContainerEntityManagerFactoryBean  gt  x000D                 lt property name  persistenceUnitName  value  UNIT NAME    gt  x000D                 lt property name  dataSource  ref  postGresDataSource    gt  x000D                 lt property name  jpaVendorAdapter  gt   x000D                    lt bean class  org springframework orm jpa vendor HibernateJpaVendorAdapter    gt  x000D                 lt  property gt  x000D           lt  bean gt  x000D   x000D   x000D   Look above that  entityManagerFactory bean refers to your UNIT NAME configured at persistence xml and the bean postGresDataSource has a property that points to your JNDI resource in Tomcat    x000D   x000D   lt property name  jndiName  value  java comp env jdbc your jndi    gt  x000D   x000D   x000D    In this example I used spring with xml but you can do this programmaticaly if you prefer   That s it  I hope helped

User · Answer

You can also add   lt Resource  auth  Container   driverClassName  org apache derby jdbc EmbeddedDriver   maxActive  20   maxIdle  10   maxWait  -1   name  ds flexeraDS   type  javax sql DataSource   url  jdbc derby flexeraDB create true     gt     under META-INF context xml file  This will be only at application level

[java] javax.naming.NameNotFoundException: Name is not bound in this Context. Unable to find

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