Comment créer un JPA autonome (avec implémentation OpenJPA) Le projet Maven commence par le plugin exec maven?

Question

J'ai un projet JPA très simple. Ceci est ma mise en page de répertoire ..

/src 
    /main 
    /java 
     /biz 
     /tugay 
      /jpaExamples 
      App.java 
      /model 
       Person.java 

    /resources 
    /META-INF 
     persistence.xml 

Donc, il est assez la disposition du répertoire Maven standard. Ceci est mon 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>biz.tugay</groupId> 
    <artifactId>jpa-examples</artifactId> 
    <packaging>jar</packaging> 

    <version>1.0-SNAPSHOT</version> 

    <name>jpa-examples</name> 
    <url>http://www.tugay.biz</url> 

    <dependencies> 
     <dependency> 
      <groupId>org.eclipse.persistence</groupId> 
      <artifactId>javax.persistence</artifactId> 
      <version>2.1.1</version> 
     </dependency> 

     <dependency> 
      <groupId>org.apache.openjpa</groupId> 
      <artifactId>openjpa</artifactId> 
      <version>2.4.2</version> 
      <scope>runtime</scope> 
     </dependency> 

     <dependency> 
      <groupId>org.apache.openjpa</groupId> 
      <artifactId>openjpa-persistence</artifactId> 
      <version>2.4.2</version> 
      <scope>runtime</scope> 
     </dependency> 

     <dependency> 
      <groupId>com.h2database</groupId> 
      <artifactId>h2</artifactId> 
      <version>1.4.192</version> 
     </dependency> 
    </dependencies> 

    <build> 
     <finalName>bare-maven-project</finalName> 
     <plugins> 
      <plugin> 
       <groupId>org.codehaus.mojo</groupId> 
       <artifactId>exec-maven-plugin</artifactId> 
       <version>1.2.1</version> 
       <configuration> 
        <mainClass>biz.tugay.jpaExamples.App</mainClass> 
       </configuration> 
      </plugin> 
     </plugins> 

     <resources> 
      <resource> 
       <directory>src/main/resources</directory> 
      </resource> 
     </resources> 
    </build> 

    <properties> 
     <maven.compiler.source>1.7</maven.compiler.source> 
     <maven.compiler.target>1.7</maven.compiler.target> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    </properties> 
</project> 

et persistence.xml

http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd » Version = "2.0">

<persistence-unit name="jpaExamples" transaction-type="RESOURCE_LOCAL"> 
    <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider> 
    <class>biz.tugay.jpaExamples.model.Person</class> 
    <properties> 
     <property name="javax.persistence.jdbc.driver" value="org.h2.Driver"/> 
     <property name="javax.persistence.jdbc.url" value="jdbc:h2:~/sampleh2db;TRACE_LEVEL_FILE=0"/> 
     <property name="javax.persistence.jdbc.user" value="test"/> 
     <property name="javax.persistence.jdbc.password" value="test"/> 
     <property name="openjpa.Log" value="DefaultLevel=ERROR, Tool=ERROR"/> 
    </properties> 
</persistence-unit> 

Enfin, App.java

package biz.tugay.jpaExamples; 

import biz.tugay.jpaExamples.model.Person; 

import javax.persistence.EntityManager; 
import javax.persistence.EntityManagerFactory; 
import javax.persistence.Persistence; 
import java.sql.*; 

public class App { 

    private static final String PERSISTENCE_UNIT_NAME = "jpaExamples"; 
    private static final EntityManagerFactory ENTITY_MANAGER_FACTORY = Persistence.createEntityManagerFactory(PERSISTENCE_UNIT_NAME); 

    public static void main(String[] args) throws ClassNotFoundException, SQLException { 
     final EntityManager entityManager = ENTITY_MANAGER_FACTORY.createEntityManager(); 
     final Person person = entityManager.find(Person.class, 1L); 
     System.out.println(person); 
     entityManager.close(); 
     ENTITY_MANAGER_FACTORY.close(); 
    } 
} 

Lorsque j'exécute App.java de IntelliJ, tout va bien. Je verrai la sortie:

Person{id=1, firstname='Koray', lastname='Tugay', address='Yıldız Cd. 43/30', city='İstanbul'} 

C'est ce que IntelliJ génère, lors de l'exécution principale App.java

"C:\Program Files\Java\jdk1.8.0_121\bin\java" -Didea.launcher.port=7534 "-Didea.launcher.bin.path=C:\Program Files (x86)\JetBrains\IntelliJ IDEA 2016.3.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_121\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_121\jre\lib\rt.jar;C:\Users\Koray Tugay\Desktop\jpa-examples\target\classes;C:\Users\Koray Tugay\.m2\repository\org\eclipse\persistence\javax.persistence\2.1.1\javax.persistence-2.1.1.jar;C:\Users\Koray Tugay\.m2\repository\org\apache\openjpa\openjpa\2.4.2\openjpa-2.4.2.jar;C:\Users\Koray Tugay\.m2\repository\commons-lang\commons-lang\2.6\commons-lang-2.6.jar;C:\Users\Koray Tugay\.m2\repository\commons-collections\commons-collections\3.2.2\commons-collections-3.2.2.jar;C:\Users\Koray Tugay\.m2\repository\net\sourceforge\serp\serp\1.15.1\serp-1.15.1.jar;C:\Users\Koray Tugay\.m2\repository\junit\junit\3.8.1\junit-3.8.1.jar;C:\Users\Koray Tugay\.m2\repository\org\apache\geronimo\specs\geronimo-jms_1.1_spec\1.1.1\geronimo-jms_1.1_spec-1.1.1.jar;C:\Users\Koray Tugay\.m2\repository\org\apache\geronimo\specs\geronimo-jta_1.1_spec\1.1.1\geronimo-jta_1.1_spec-1.1.1.jar;C:\Users\Koray Tugay\.m2\repository\commons-pool\commons-pool\1.6\commons-pool-1.6.jar;C:\Users\Koray Tugay\.m2\repository\org\apache\xbean\xbean-asm5-shaded\3.17\xbean-asm5-shaded-3.17.jar;C:\Users\Koray Tugay\.m2\repository\org\apache\geronimo\specs\geronimo-jpa_2.0_spec\1.1\geronimo-jpa_2.0_spec-1.1.jar;C:\Users\Koray Tugay\.m2\repository\org\apache\openjpa\openjpa-persistence\2.4.2\openjpa-persistence-2.4.2.jar;C:\Users\Koray Tugay\.m2\repository\org\apache\openjpa\openjpa-kernel\2.4.2\openjpa-kernel-2.4.2.jar;C:\Users\Koray Tugay\.m2\repository\org\apache\openjpa\openjpa-lib\2.4.2\openjpa-lib-2.4.2.jar;C:\Users\Koray Tugay\.m2\repository\com\h2database\h2\1.4.192\h2-1.4.192.jar;C:\Program Files (x86)\JetBrains\IntelliJ IDEA 2016.3.3\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain biz.tugay.jpaExamples.App 

donc je suis assez sûr que tout lié à ma configuration persistence.xml et les dépendances sont très bien ..

Lorsque je tente mvn exec: java (après mvn clean install) je reçois:

[WARNING] 
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.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:297) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: <openjpa-2.4.2-r422266:1777108 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: This configuration disallows runtime optimization, but the following listed types were not enhanced at build time or at class load time with a javaagent: " 
biz.tugay.jpaExamples.model.Person". 
    at org.apache.openjpa.enhance.ManagedClassSubclasser.prepareUnenhancedClasses(ManagedClassSubclasser.java:115) 
    at org.apache.openjpa.kernel.AbstractBrokerFactory.loadPersistentTypes(AbstractBrokerFactory.java:311) 
    at org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:235) 
    at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:211) 
    at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:154) 
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:226) 
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:153) 
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:59) 
    at biz.tugay.jpaExamples.App.main(App.java:16) 
    ... 6 more 
[INFO] ------------------------------------------------------------------------ 
[INFO] BUILD FAILURE 
[INFO] ------------------------------------------------------------------------ 
[INFO] Total time: 1.240 s 
[INFO] Finished at: 2017-05-24T22:32:46+03:00 
[INFO] Final Memory: 11M/139M 
[INFO] ------------------------------------------------------------------------ 
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:java (default-cli) on project jpa-examples: An exception occured while executing the Java class. null: InvocationTargetException: This configuration disallows runtime optimization, but the following listed types were not enhanced at build time or at class load time with a javaagent: " 
[ERROR] biz.tugay.jpaExamples.model.Person". 

Comment résoudre ce problème? Je pense que OpenJPA est incapable de trouver persistence.xml, mais je peux vérifier qu'il se trouve sous target/classes.

Answer 1

ajouter ceci à pom.xml travaillé:

<plugin> 
    <groupId>org.apache.openjpa</groupId> 
    <artifactId>openjpa-maven-plugin</artifactId> 
    <version>2.4.2</version> 
    <configuration> 
     <includes>**/model/*.class</includes> 
     <excludes>**/model/XML*.class</excludes> 
     <addDefaultConstructor>true</addDefaultConstructor> 
     <enforcePropertyRestrictions>true</enforcePropertyRestrictions> 
    </configuration> 
    <executions> 
     <execution> 
      <id>enhancer</id> 
      <phase>process-classes</phase> 
      <goals> 
       <goal>enhance</goal> 
      </goals> 
     </execution> 
    </executions> 
    <dependencies> 
     <dependency> 
      <groupId>org.apache.openjpa</groupId> 
      <artifactId>openjpa</artifactId> 
      <!-- set the version to be the same as the level in your runtime --> 
      <version>2.4.2</version> 
     </dependency> 
    </dependencies> 
</plugin>