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>
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)
I'm working on a maven project using eclipselink 2.7.8 for persistence. When I run it on my IDE (Netbeans 12.0) it works perfectly well, but when I attempt to run it from a built jar it doesn't.
This is the stack trace when I use the jar
Exception in thread "main" Local Exception Stack:
Exception [EclipseLink-30005] (Eclipse Persistence Services - 2.7.8.v20201217-ecdf3c32c4): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException
Exception Description: An exception was thrown while searching for persistence archives with ClassLoader: jdk.internal.loader.ClassLoaders$AppClassLoader#2cdf8d8a
Internal Exception: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.7.8.v20201217-ecdf3c32c4): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [MyPersistenceUnit] failed.
Internal Exception: java.lang.NullPointerException
at org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionSearchingForPersistenceResources(PersistenceUnitLoadingException.java:129)
at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactoryImpl(PersistenceProvider.java:118)
at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:191)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:80)
...
Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.7.8.v20201217-ecdf3c32c4): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [MyPersistenceUnit] failed.
Internal Exception: java.lang.NullPointerException
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.createPredeployFailedPersistenceException(EntityManagerSetupImpl.java:2109)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:2085)
at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:104)
at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactoryImpl(PersistenceProvider.java:107)
... 15 more
Caused by: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.7.8.v20201217-ecdf3c32c4): org.eclipse.persistence.exceptions.EntityManagerSetupException
Exception Description: Predeployment of PersistenceUnit [MyPersistenceUnit] failed.
Internal Exception: java.lang.NullPointerException
at org.eclipse.persistence.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:233)
... 19 more
Caused by: java.lang.NullPointerException
at org.eclipse.persistence.internal.jpa.metadata.MetadataProject.hasEntity(MetadataProject.java:1441)
at org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotatedElement.isOneToMany(MetadataAnnotatedElement.java:693)
at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.buildAccessor(ClassAccessor.java:609)
at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.addAccessorFields(ClassAccessor.java:438)
at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.addAccessors(ClassAccessor.java:410)
at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.preProcess(ClassAccessor.java:1225)
at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EmbeddableAccessor.preProcess(EmbeddableAccessor.java:304)
at org.eclipse.persistence.internal.jpa.metadata.MetadataProject.processStage1(MetadataProject.java:1851)
at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:579)
at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:629)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:2006)
... 17 more
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="MyPersistenceUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
...
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="javax.persistence.jdbc.url" value="jdbc:h2:./bd/MyPersistenceUnit"/>
<property name="javax.persistence.jdbc.user" value=""/>
<property name="javax.persistence.jdbc.driver" value="org.h2.Driver"/>
<property name="javax.persistence.jdbc.password" value=""/>
<property name="javax.persistence.schema-generation.database.action" value="create"/>
</properties>
</persistence-unit>
</persistence>
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>xxxx.xxxxx</groupId>
<artifactId>Service</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>2.7.8</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.4.194</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.fusesource.jansi</groupId>
<artifactId>jansi</artifactId>
<version>2.3.2</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
<type>jar</type>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<id>example</id>
<configuration>
<archive>
<manifest>
<mainClass>xxxx.xxxxx.service.demonstration.MainDemo</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<appendAssemblyId>false</appendAssemblyId>
</configuration>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
I suspect that it's something to do with how maven is building the jar, since it works fine on the IDE. I have tried to utilize different eclipselink versions too, but that didn't seem to help (I started this project using 2.5.2 but updated after I had problems due to incompatibilities with some Java 8 features)
Edit:
I am running the jar from Powershell, with the command "java -jar .\nameOfTheJar.jar"
Possibly relevant parts of my PATH variable:
Path=C:\Program Files\Common Files\Oracle\Java\javapath;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\Git\cmd;
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 am trying to run a Hibernate application. I can do it from NetBeans IDE, when I am going to command line, with mvn install it builds successfully but when I am trying to run the jar file in target folder (java -jar hibernate-1.0-SNAPSHOT.jar) I am getting the following error:
Exception in thread "main" java.lang.NoClassDefFoundError: org/hibernate/cfg/Configuration
at hibernate.HibernateUtil.getSessionFactory(HibernateUtil.java:11)
at hibernate.SmartDevice.main(SmartDevice.java:13)
Caused by: java.lang.ClassNotFoundException: org.hibernate.cfg.Configuration
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 2 more
It doesn't find the Configuration class of Hibernate, but I added the hibernate-core dependency in 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>hibernate</groupId>
<artifactId>hibernate</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.4.1.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.h2database/h2 -->
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.4.197</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.persistence/persistence-api -->
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
</plugin>
<plugin>
<!-- Build an executable JAR -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<archive>
<manifest>
<mainClass>hibernate.SmartDevice</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
<name>hibernate</name>
</project>
Here is my hibernate.cfg.xml:
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://www.hibernate.org/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">org.h2.Driver</property>
<property name="connection.url">jdbc:h2:mem:test;DB_CLOSE_DELAY=-1</property>
<property name="dialect">org.hibernate.dialect.H2Dialect</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">create</property>
<mapping class="hibernate.User"/>
</session-factory>
</hibernate-configuration>
Should I add something else? Or why is this error? Thanks for the help!
ClassNotFoundException means that the org.hibernate.cfg.Configuration class in not included in your classpath. Looking for that class in the IDE, we see it is included in the hibernate-core-5.4.1-Final.jar file.
By running java -jar hibernate-1.0-SNAPSHOT.jar, the additional dependencies are missing.
There are some ways to package your jar with the required dependencies, one is by using the maven-assembly-plugin, or by using the shade plugin.
As a "manual" alternative, you can cd to your project root folder (containing the pom.xml file), and execute
mvn clean package
mvn dependency:copy-dependencies
java -cp target/*;target/dependency/* hibernate.SmartDevice
The dependency plugin copies all needed jars to the target\dependency folder, and the last command adds all jars to the classpath and runs your java class.
edit the above commands are for Windows; on Linux you would use ":" in place of ";"
I have made a connection to a mssql using persistence.xml in java. For doing that i had to copy sqljdbc_auth.dll in to system32 because i wanted to use the windows authentication in order to connect. Is there a way to achieve the same result without copying the dll file? Removing the dll causes this warning and prevents the execution:
Failed to load the sqljdbc_auth.dll cause : no sqljdbc_auth in java.library.path
This is my persistence:
<?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="migration">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>migration.xcs.model.Kennzahl</class>
<properties>
<property name="javax.persistence.jdbc.driver"
value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
<property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect" />
<property name="javax.persistence.jdbc.url"
value="jdbc:sqlserver://localhost:1433;databaseName=kendb;integratedSecurity=true;" />
<property name="hibernate.archive.autodetection" value="class" />
</properties>
</persistence-unit>
And these are my pom dependencies:
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.0.5.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.0.5.Final</version>
</dependency>
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>sqljdbc4</artifactId>
<version>4.0</version>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
You have not added the path where sqljdbc_auth.dll is present.
Find out in the system where the DLL is and add that to your classpath.
Or in your Eclipse you can Run Configuration like this:
-Djava.library.path=C:\path of the dll\