I am newbie to JPA and I tried to do a simple example from the book.
But no matter what I do I receive following error:
Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named EmployeeService
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:89)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
at com.mycompany.simpleentity.EmployeeTest.main(EmployeeTest.java:18)
I googled a lot and I did all that I read about JPA.
Here is a directory tree of my project:
.
|-- pom.xml
`-- src
|-- main
| |-- java
| | `-- com
| | `-- mycompany
| | `-- simpleentity
| | |-- Employee.java
| | |-- EmployeeService.java
| | `-- EmployeeTest.java
| `-- resources
| `-- META-INF
| `-- persistence.xml
`-- test
Here is my pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mycompany</groupId>
<artifactId>SimpleEntity</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>SimpleEntity</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.0-801.jdbc4</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.mycompany.simpleentity.EmployeeTest</mainClass>
<!-- <classpathLayoutType>repository</classpathLayoutType> -->
<classpathMavenRepositoryLayout>true</classpathMavenRepositoryLayout>
<classpathPrefix>${env.HOME}/.m2/repository</classpathPrefix>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>
Here is my source code:
EmployeeTest.java:
package com.mycompany.simpleentity;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
public class EmployeeTest {
public static void main(String[] args) {
EntityManagerFactory emf = Persistence.createEntityManagerFactory("EmployeeService");
EntityManager em = emf.createEntityManager();
}
}
And here is my persistance.xml
<persistence 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"
version="1.0">
<persistence-unit name="EmployeeService" transaction-type="RESOURCE_LOCAL">
<class>com.mycompany.simpleentity.Employee</class>
<properties>
<property name="toplink.jdbc.driver"
value="org.postgresql.Driver"/>
<property name="toplink.jdbc.url"
value="jdbc:postgresql://localhost:5432/testdb;create=true"/>
<property name="toplink.jdbc.user" value="postgres"/>
<property name="toplink.jdbc.password" value="111"/>
</properties>
</persistence-unit>
</persistence>
What do I do wrong?
Thank you in advance.
JPA is a specification implemented by multiple JPA providers (Hibernate, EclipseLink, OpenJPA, Toplink).
You need to choose a provider to use and add the appropriate dependency to your pom.xml. Also you need to specify your provider in persistence.xml.
For example, if you use OpenJPA (I choosed it for this example since its latest version is available in Maven Central Repo, so there is no need to configure vendor-specific repositories):
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- Note that you don't need persistence-api dependency - it's transitive -->
<dependency>
<groupId>org.apache.openjpa</groupId>
<artifactId>openjpa-all</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.0-801.jdbc4</version>
</dependency>
</dependencies>
.
<persistence 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"
version="1.0">
<persistence-unit name="EmployeeService" transaction-type="RESOURCE_LOCAL">
<!-- Provider specification -->
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
<class>com.mycompany.simpleentity.Employee</class>
<properties>
<property name="javax.persistence.jdbc.driver"
value="org.postgresql.Driver"/>
<property name="javax.persistence.jdbc.url"
value="jdbc:postgresql://localhost:5432/testdb;create=true"/>
<property name="javax.persistence.jdbc.user" value="postgres"/>
<property name="javax.persistence.jdbc.password" value="111"/>
</properties>
</persistence-unit>
</persistence>
if you use JPA + eclipselink Provider than use this code
<properties>
<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost/Database name" />
<property name="javax.persistence.jdbc.user" value="" />
<property name="javax.persistence.jdbc.password" value="" />
<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver" />
</properties>
1) make sure you have defined the persistence provider(for whatever provider):
Ex For openjpa:
<persistence-unit ...>
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
...
...
</persistence-unit>
2) if you are using custom build/compile process (maven, etc)
make sure your Meta-INF/persistance.xml is copied to the compiled/classes folder.
Actually,
You don't seem to have a dependency for an actual Peristence Provider.
JPA in itself does not have a implementation, you will need to also use Hibernate/Toplink/OpenJPA as an actual solution.
According to your persistence.xml you are using TopLink with PostgreSQL as the RDBMS. While you reference the PostgreSQL JDBC driver in your pom.xml, you haven't declared TopLink as a dependency.
My guess (I admit) is that the persistence API doesn't find TopLink (your persistence provider) in the classpath. Try adding TopLink as a dependency.
JPA being a specification has multiple providers (implementors). You have to choose one that provides the actual bytecode for the JPA specification. Hibernate is common choice, but yours may be different. Once you have identified that, add that as a dependency into your POM. Otherwise, add the JAR file to your build path.
Related
So I'm developing an API and I'm trying to connect to a local docker instance of DB2 from java using JPA entity manager. After running Apache Maven and getting build success, I try a GET request from Postman to test an endpoint and get a list of all users from DB2. I'm receiving the below error saying that entity manager is null. I've tried researching online and can't seem to find the solution.
The Dao class is virtually unchanged from a previous iteration that used Derby instead of DB2 and it worked fine.
I was wanting to know where I've gone wrong, what needs changing, and if anything is not needed. Provided below is the xml files and the DAO java class containing the entity manager. All properties for DB2 is correct as they're unchanged from a successful connection I was able to do from Eclipse's Database Development. The driver used then was db2jcc4 which I think is different to the driver said to use for the maven dependency so not sure if that's an issue.
Postman:
Error 500: java.lang.NullPointerException: Cannot invoke
"javax.persistence.EntityManager.createNamedQuery(String, java.lang.Class)" because
"this.em" is null
Maven:
[INFO] [ERROR ] CWWJP0015E: An error occurred in the org.eclipse.persistence.jpa.PersistenceProvider persistence provider when it attempted to create the container entity manager factory for the jpa-unit persistence unit. The following error occurred: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.7.9.v20210604-2c549e2208): org.eclipse.persistence.exceptions.EntityManagerSetupException
[INFO] Exception Description: Predeployment of PersistenceUnit [jpa-unit] failed.
[INFO] Internal Exception: javax.persistence.PersistenceException: CWWJP0013E: The server cannot locate the java:comp/DefaultDataSource data source for the jpa-unit persistence unit because it has encountered the following exception: javax.naming.NameNotFoundException: javax.naming.NameNotFoundException: java:comp/DefaultDataSource.
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.obdoblock</groupId>
<artifactId>hyperledger-api</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!-- Liberty configuration -->
<liberty.var.default.http.port>3500</liberty.var.default.http.port>
<liberty.var.default.https.port>9443</liberty.var.default.https.port>
<liberty.var.app.context.root>api</liberty.var.app.context.root>
<!-- TestDB Configuration -->
<version.ibm.db2>11.5.6.0</version.ibm.db2>
</properties>
<dependencies>
<!-- Provided dependencies -->
<dependency>
<groupId>jakarta.platform</groupId>
<artifactId>jakarta.jakartaee-api</artifactId>
<version>8.0.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.eclipse.microprofile</groupId>
<artifactId>microprofile</artifactId>
<version>3.3</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
<!-- For tests -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.6.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-client</artifactId>
<version>3.3.6</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-extension-providers</artifactId>
<version>3.3.6</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.eclipse</groupId>
<artifactId>yasson</artifactId>
<version>1.0.7</version>
<scope>test</scope>
</dependency>
<!-- DB2 connector -->
<dependency>
<groupId>com.ibm.db2</groupId>
<artifactId>jcc</artifactId>
<version>11.5.6.0</version>
</dependency>
<!-- Hyperledger Fabric Gateway for Blockchain -->
<dependency>
<groupId>org.hyperledger.fabric</groupId>
<artifactId>fabric-gateway-java</artifactId>
<version>2.2.0</version>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<!-- Enable liberty-maven plugin -->
<plugin>
<groupId>io.openliberty.tools</groupId>
<artifactId>liberty-maven-plugin</artifactId>
<version>3.3.4</version>
<configuration>
<copyDependencies>
<location>${project.build.directory}/liberty/wlp/usr/shared/resources</location>
<dependency>
<groupId>com.ibm.db2</groupId>
<artifactId>jcc</artifactId>
<version>11.5.6.0</version>
</dependency>
</copyDependencies>
</configuration>
</plugin>
<!-- Plugin to run functional tests -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.22.2</version>
<configuration>
<systemPropertyVariables>
<http.port>${liberty.var.default.http.port}</http.port>
<context.root>${liberty.var.app.context.root}</context.root>
</systemPropertyVariables>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.3</version>
</plugin>
<!-- Plugin to run unit tests -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.2</version>
</plugin>
</plugins>
</build>
</project>
server.xml
<server description="Obdoblock REST Server">
<featureManager>
<feature>jaxrs-2.1</feature>
<feature>openapi-3.1</feature>
<feature>jpa-2.2</feature>
<feature>cdi-2.0</feature>
</featureManager>
<httpEndpoint
httpPort="${default.http.port}"
httpsPort="${default.https.port}"
id="defaultHttpEndpoint"
host="*"
/>
<webApplication
location="hyperledger-api.war"
contextRoot="${app.context.root}"
/>
<!-- DB2 Library Configuration -->
<library id="DB2JCCLib">
<fileset dir="${shared.resource.dir}" includes="*.jar" />
</library>
<dataSource jndiName="jdbc/db2">
<jdbcDriver libraryRef="jdbcLib"/>
<properties
databaseName="testdb"
serverName="localhost"
portNumber="50000"
user="****" password="****"
/>
</dataSource>
</server>
persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- TODO: This will have to be configured by ENV as well -->
<!-- https://www.eclipse.org/eclipselink/documentation/2.5/jpa/extensions/p_ddl_generation.htm -->
<persistence version="2.2"
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_2.xsd">
<persistence-unit name="jpa-unit" transaction-type="JTA">
<properties>
<!-- Connection Specific -->
<property name="hibernate.dialect" value="org.hibernate.dialect.DB2Dialect"/>
<property name="javax.persistence.jdbc.driver" value="com.ibm.db2.jcc.DB2Driver" />
<property name="javax.persistence.jdbc.url" value="jdbc:db2://localhost:50000/testdb" />
<property name="javax.persistence.jdbc.user" value="****" />
<property name="javax.persistence.jdbc.password" value="****" />
<property name="show_sql" value="true"/>
<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false"/>
</properties>
</persistence-unit>
</persistence>
UserDao.java
package dao;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.enterprise.context.RequestScoped;
import models.*;
#RequestScoped
public class UserDao {
#PersistenceContext(name = "jpa-unit")
private EntityManager em;
public void createUser(Users user){
em.persist(user);
}
public Users readUser(int userId){
return em.find(Users.class, userId);
}
public List<Users> readAllUsers(){
return em.createNamedQuery("Users.findAll", Users.class).getResultList();
}
public void updateUser(Users user){
em.merge(user);
}
public void deleteUser(Users userId){
em.remove(userId);
}
public List<Users> findUser(String email){
return em.createNamedQuery("Users.findUser", Users.class)
.setParameter("email", email)
.getResultList();
}
public void createHistory(History hist){
em.persist(hist);
}
//wait this doesnt do anything?
public Users readHistory(int id){
return em.find(Users.class, id);
}
public List<History> readAllHistory(){
return em.createNamedQuery("History.findAll", History.class).getResultList();
}
}
Versions:
Docker: 20.10.8, build 3967b7d
DB2: ibm/db2 docker image version 11.5.6
Maven: 3.8.3
Java: JDK 14.0.2
If needing any more details, I'm happy to provide them.
Thanks, Dylan
Your persistence.xml is incorrect. It should point to datasource configured in the server.xml, not specify driver properties.
Like this:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.2"
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_2.xsd">
<persistence-unit name="jpa-unit" transaction-type="JTA">
<jta-data-source>jdbc/guestbookDS</jta-data-source>
<properties>
<property name="javax.persistence.schema-generation.database.action" value="create" />
<property name="javax.persistence.schema-generation.create-database-schemas" value="true" />
<property name="javax.persistence.schema-generation.scripts.action" value="create" />
<property name="javax.persistence.schema-generation.scripts.create-target" value="create.ddl"/>
<!--
<property name="eclipselink.ddl-generation" value="create-or-extend-tables"/>
<property name="eclipselink.ddl-generation.output-mode" value="both" />
-->
</properties>
</persistence-unit>
</persistence>
You can check this very simple Liberty project which uses JPA and database here https://github.com/stocktrader-ops/db-sat-demo (it is using PostgreSQL instead of DB2, but you should just use your datasource setup)
When I am trying to run my application via JPA Hibernate , I receive some exceptions :
( I added my pom.xml file and persistence.xml file below ... )
My password in Mysql : root.
Exception in thread "main" javax.persistence.PersistenceException: Unable to build entity manager factory
at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:83)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:54)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
at ua.kiev.prog.sample2.App.main(App.java:9)
As I realize, I have problems below :
Caused by: org.hibernate.exception.JDBCConnectionException: Error calling Driver#connect
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server
Help me to solve It.
Thanks in advance.
My pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>ua.kiev.prog</groupId>
<artifactId>jpa-sample-2</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>jpa-sample-2</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.35</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.3.9.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
My persistence.xml
<persistence 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_2_0.xsd"
version="2.0">
<persistence-unit name="JPATest">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<properties>
<property name="javax.persistence.jdbc.driver"
value="com.mysql.jdbc.Driver" />
<property name="javax.persistence.jdbc.url"
value="jdbc:mysql://localhost:3306/jpasample2" />
<property name="javax.persistence.jdbc.user" value="root" />
<property name="javax.persistence.jdbc.password"
value="root" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.dialect"
value="org.hibernate.dialect.MySQL5Dialect" />
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
</properties>
</persistence-unit>
I've got a problem with my JavaEE application, I tried to create app which will be automatically deployed, so I've chosen Thorntail but after launching it with mvn thorntail:run, I've got this error message
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.wildfly.swarm.bootstrap.MainInvoker.invoke(MainInvoker.java:53)
at org.wildfly.swarm.bootstrap.MainInvoker.main(MainInvoker.java:106)
Caused by: java.lang.RuntimeException: org.jboss.shrinkwrap.api.importer.ArchiveImportException: Could not obtain ZIP File from File
at org.wildfly.swarm.Swarm.initializeConfigView(Swarm.java:635)
at org.wildfly.swarm.Swarm.<init>(Swarm.java:254)
at org.wildfly.swarm.Swarm.<init>(Swarm.java:192)
at org.wildfly.swarm.Swarm.<init>(Swarm.java:179)
at org.wildfly.swarm.Swarm.main(Swarm.java:739)
... 6 more
Caused by: org.jboss.shrinkwrap.api.importer.ArchiveImportException: Could not obtain ZIP File from File
at org.jboss.shrinkwrap.impl.base.importer.zip.ZipImporterImpl.importFrom(ZipImporterImpl.java:178)
at org.jboss.shrinkwrap.impl.base.importer.zip.ZipImporterImpl.importFrom(ZipImporterImpl.java:157)
at org.jboss.shrinkwrap.impl.base.importer.zip.ZipImporterImpl.importFrom(ZipImporterImpl.java:49)
at org.wildfly.swarm.Swarm.initializeConfigFiltersClassPath(Swarm.java:693)
at org.wildfly.swarm.Swarm.initializeConfigFilters(Swarm.java:643)
at org.wildfly.swarm.Swarm.initializeConfigView(Swarm.java:632)
... 10 more
Caused by: java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:225)
at java.util.zip.ZipFile.<init>(ZipFile.java:155)
at java.util.zip.ZipFile.<init>(ZipFile.java:169)
at org.jboss.shrinkwrap.impl.base.importer.zip.ZipImporterImpl.importFrom(ZipImporterImpl.java:176)
... 15 more
My pom.xml :
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.edu</groupId>
<artifactId>money-transfer-app</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<javamoney.version>1.3</javamoney.version>
<h2.version>1.4.197</h2.version>
<junit.version>5.1.0</junit.version>
<junit.surefire.provider>1.3.0</junit.surefire.provider>
<assertj.version>3.11.1</assertj.version>
<maven.compiler.plugin.version>3.7.0</maven.compiler.plugin.version>
<maven.war.plugin.version>3.2.2</maven.war.plugin.version>
<maven.surefire.plugin.version>2.22.0</maven.surefire.plugin.version>
<version.thorntail>2.2.0.Final</version.thorntail>
<failOnMissingWebXml>false</failOnMissingWebXml>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.thorntail</groupId>
<artifactId>bom-all</artifactId>
<version>${version.thorntail}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.javamoney</groupId>
<artifactId>moneta</artifactId>
<version>${javamoney.version}</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.thorntail</groupId>
<artifactId>jaxrs</artifactId>
</dependency>
<dependency>
<groupId>io.thorntail</groupId>
<artifactId>cdi</artifactId>
</dependency>
<dependency>
<groupId>io.thorntail</groupId>
<artifactId>ejb</artifactId>
</dependency>
<dependency>
<groupId>io.thorntail</groupId>
<artifactId>jpa</artifactId>
</dependency>
</dependencies>
<build>
<finalName>money-transfer-app</finalName>
<plugins>
<plugin>
<groupId>io.thorntail</groupId>
<artifactId>thorntail-maven-plugin</artifactId>
<version>${version.thorntail}</version>
<executions>
<execution>
<goals>
<goal>package</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven.surefire.plugin.version}</version>
</plugin>
</plugins>
</build>
</project>
In the beginning, I thought it's caused by Java 10 version, but after downgrade to 8 problems still occurs. Thank you in advance for all your hints
Edit.
After mvn clean package and java -jar target/money-transfer-app-thorntail.jar there is another error
2018-09-10 19:37:05,388 ERROR [stderr] (main) org.wildfly.swarm.container.DeploymentException: org.wildfly.swarm.container.DeploymentException: THORN0004: Deployment failed: {"WFLYCTL0412: Required services that are not installed:" => ["jboss.naming.context.java.undefined"],"WFLYCTL0180: Services with missing/unavailable dependencies" => ["jboss.persistenceunit.\"money-transfer-app.war#h2DataBase\" is missing [jboss.naming.context.java.undefined]","jboss.persistenceunit.\"money-transfer-app.war#h2DataBase\".__FIRST_PHASE__ is missing [jboss.naming.context.java.undefined]"]}
The persistence.xml was most likely not the cause of your problem.
If I understand Thorntail correctly, it is pulling dependencies from your maven repository expecting them to already be there. If they for some reason are not already there (for example, your pom is missing the dependencies that Thorntail needs), it will simply fail while reading the jar files. If that is the case, then maybe the error handling could be improved upon.
My persistence.xml file was a source of the problem, I've configured my H2 datasource and now application works fine
Previous version of persistence.xml file
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" 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">
<persistence-unit name="h2DataBase" transaction-type="JTA">
<properties>
<property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
</properties>
</persistence-unit>
</persistence>
After changes
<?xml version="1.0" encoding="UTF-8"?>
<persistence
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
version="2.1"
xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="test" transaction-type="JTA">
<class>model.Account</class>
<class>model.Owner</class>
<class>model.payments.Payment</class>
<properties>
<property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
<property name="javax.persistence.jdbc.url" value="jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE" />
<property name="javax.persistence.jdbc.user" value="sa" />
<property name="javax.persistence.jdbc.password" value="" />
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/>
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
<property name="show_sql" value="true"/>
<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false"/>
</properties>
</persistence-unit>
</persistence>
I used to generate DDL using hibernate3-maven-plugin with Hibernate 3.
Since I switched to Hibernate 4 I can't use this plugin anymore.
I can't find a way to generate a DDL from mapping without being connected to an actual PostgreSQL database.
I tried a lot of stuff (including hibernate4-maven-plugin from de.juplo and this) but I feel like each method requires a DB connection.
Is there a (good) way to generate DDL in Hibernate 4 without connection ?
I can generate my DDL script in this way:
<plugin>
<groupId>de.juplo</groupId>
<artifactId>hibernate4-maven-plugin</artifactId>
<version>1.1.1</version>
<executions>
<execution>
<goals>
<goal>export</goal>
</goals>
</execution>
</executions>
<configuration>
<hibernateDialect>org.hibernate.dialect.PostgreSQLDialect</hibernateDialect>
<!-- I want generate the schemas for these dialects too, at same time... -->
<!-- <hibernateDialect>org.hibernate.dialect.Oracle10gDialect</hibernateDialect> -->
<!-- <hibernateDialect>org.hibernate.dialect.SQLServerDialect</hibernateDialect> -->
<target>SCRIPT</target>
</configuration>
</plugin>
I do not need any connection, I just specify the SQL dialect. Using mvn clean package Maven places the script in target folder.
This is my persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1"
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">
<persistence-unit name="primary">
<jta-data-source>java:jboss/datasources/library.backendDS</jta-data-source>
<properties>
<!-- Properties for Hibernate -->
<property name="hibernate.hbm2ddl.auto" value="validate" />
<property name="hibernate.show_sql" value="false" />
</properties>
</persistence-unit>
</persistence>
I encounter a problem to run my java program with JPA annotation. it looks I did not set environment correctly. Here is my error message:
here is my project structure:
Here is my persistence.xml
<persistence 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_2_0.xsd"
version="2.0">
<persistence-unit name="IFP" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>gov.faa.infra.ifp.ifp_hibernate_test.ProcSegment</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<validation-mode>NONE</validation-mode>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.OracleDialect"/>
<property name="hibernate.archive.autodetection" value="class, htm" />
<property name="hibernate.cache.use_second_level_cache" value="false" />
<property name="hibernate.cache.use_query_cache" value="false" />
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.show_sql" value="false" />
<property name="hibernate.format_sql" value="true" />
<property name="hibernate.transaction.flush_before_completion" value="true" />
<property name="javax.persistence.jdbc.driver" value="oracle.jdbc.driver.OracleDriver"/>
<property name="javax.persistence.jdbc.url" value="jdbc:oracle:thin:#jamcdfdndb500.amc.faa.gov:1521:dnavln"/>
<property name="url" value="jdbc:oracle:thin:#jamcdfdndb500.amc.faa.gov:1521:dnavln" />
<property name="javax.persistence.jdbc.user" value="xxxxxx"/>
<property name="javax.persistence.jdbc.password" value="xxxxxx"/>
<property name="javax.persistence.query.timeout" value="1000000"/>
</properties>
</persistence-unit>
</persistence>
Here is my code to create entity manager:
package gov.faa.infra.ifp.ifp_hibernate_test;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
public class AccessHibernateTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
EntityManagerFactory entityManagerfactory = Persistence.createEntityManagerFactory("IFP");
EntityManager entityManager= entityManagerfactory.createEntityManager();
entityManager.getTransaction().begin();
ProcId procId=new ProcId(6688L, 1, "C", new Integer(0));
ProcSegment procSegment=entityManager.find(ProcSegment.class, procId);
System.out.println(procSegment.toString());
entityManager.getTransaction().commit();
}
}
Here is my pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>gov.faa.infra.ifp</groupId>
<artifactId>ifp-hibernate-test</artifactId>
<version>0.0.1</version>
<packaging>jar</packaging>
<name>ifp-hibernate-test</name>
<url>http://maven.apache.org</url>
<properties>
<hibernate.core.version>3.6.10.Final</hibernate.core.version>
<junit.version>4.6</junit.version>
</properties>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.core.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>siap</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>build.txt</include>
<include>log4j.properties</include>
<include>siap.properties</include>
<include>correlation.properties</include>
<include>META-INF/persistence.xml</include>
</includes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<compilerArguments>
<extdirs>${basedir}/src/main/webapp/WEB-INF/lib</extdirs>
</compilerArguments>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.14.1</version>
<configuration>
<additionalClasspathElements>
<additionalClasspathElement>${basedir}/src/main/webapp/WEB-INF/lib/restlet-2.0m3.jar</additionalClasspathElement>
</additionalClasspathElements>
</configuration>
</plugin>
</plugins>
</build>
</project>
I tried to set up environment as past posts suggested, but it did not work, I am using Eclipse. One thing I am confused is about setting up class path in the suggestion. Can anyone give me a hint? I would appreciate it.
Sam
You have specified a provider
<provider>org.hibernate.ejb.HibernatePersistence</provider>
But you don't have a jar with HibernatePersistence class in the class path. This class resides in the hibernate-entitymanager jar of a corresponding version.
You just need to add hibernate-entitymanager to your pom.xml
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.core.version}</version>
</dependency>