java.lang.SecurityException:
class "javax.persistence.PersistenceUtil"'s signer information does
not match signer information of other classes in the same package
When I am setting up jpa project with Eclipse Link +
Apache Derby, I faced below problem.
Exception in thread "main" java.lang.SecurityException: class "javax.persistence.PersistenceUtil"'s signer information does not match signer information of other classes in the same package at java.lang.ClassLoader.checkCerts(ClassLoader.java:898) at java.lang.ClassLoader.preDefineClass(ClassLoader.java:668) at java.lang.ClassLoader.defineClass(ClassLoader.java:761) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at com.sample.app.Test.main(Test.java:14)
It is because, I added below maven dependency to my
project.
<!--
https://mvnrepository.com/artifact/org.eclipse.persistence/eclipselink -->
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>2.7.1</version>
</dependency>
I resolved the problem by excluding the ‘javax.persistence’
API, that comes as part of Eclipse Link and adding the persistence API
explicitly like below.
<!-- https://mvnrepository.com/artifact/org.eclipse.persistence/eclipselink --> <dependency> <groupId>org.eclipse.persistence</groupId> <artifactId>eclipselink</artifactId> <version>2.7.1</version> <exclusions> <exclusion> <groupId>org.eclipse.persistence</groupId> <artifactId>javax.persistence</artifactId> </exclusion> </exclusions> </dependency> <!-- https://mvnrepository.com/artifact/javax.persistence/javax.persistence-api --> <dependency> <groupId>javax.persistence</groupId> <artifactId>javax.persistence-api</artifactId> <version>2.2</version> </dependency>
PersistenceException:
No Persistence provider for EntityManager named
When I am setting up JPA project with Eclipse Link +
Apache Derby, I faced below problem.
Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named demoDatabasePersistenceUnit at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:85) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54) at com.sample.app.Test.main(Test.java:14)
I resolved above problem by adding ‘persistence.xml’ file
folder of src/main/resources/META-INF folder.
persistence.xml
<?xml version="1.0" encoding="UTF-8"?> <persistence version="2.0" 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_2_0.xsd"> <persistence-unit name="demoDatabasePersistenceUnit" transaction-type="RESOURCE_LOCAL"> <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> <class>com.smaple.entities.Employee</class> <properties> <property name="eclipselink.target-database" value="Derby" /> <property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.ClientDriver" /> <property name="javax.persistence.jdbc.url" value="jdbc:derby://localhost:1527/demoDatabase;create=true" /> <property name="javax.persistence.jdbc.user" value="APP" /> <property name="javax.persistence.jdbc.password" value="APP" /> <property name="eclipselink.logging.level" value="ALL" /> <property name="eclipselink.ddl-generation" value="drop-and-create-tables" /> <property name="eclipselink.ddl-generation.output-mode" value="database" /> </properties> </persistence-unit> </persistence>
org.eclipse.persistence.exceptions.DatabaseException
Exception
Description: Configuration error. Class
[org.apache.derby.jdbc.ClientDriver] not found.
When I am setting up JPA project with Eclipse Link +
Apache Derby, I faced below problem.
Exception [EclipseLink-4003] (Eclipse Persistence Services - 2.7.1.v20171221-bd47e8f): org.eclipse.persistence.exceptions.DatabaseException Exception Description: Configuration error. Class [org.apache.derby.jdbc.ClientDriver] not found. at org.eclipse.persistence.exceptions.DatabaseException.configurationErrorClassNotFound(DatabaseException.java:89) at org.eclipse.persistence.sessions.DefaultConnector.loadDriverClass(DefaultConnector.java:267) at org.eclipse.persistence.sessions.DefaultConnector.connect(DefaultConnector.java:85) at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:170) at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connectInternal(DatasourceAccessor.java:346) at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.connectInternal(DatabaseAccessor.java:313) at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:434) at org.eclipse.persistence.sessions.server.ConnectionPool.buildConnection(ConnectionPool.java:217) at org.eclipse.persistence.sessions.server.ConnectionPool.startUp(ConnectionPool.java:505) at org.eclipse.persistence.sessions.server.ServerSession.connect(ServerSession.java:519) at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.login(DatabaseSessionImpl.java:819) at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:256) at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:759) at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getAbstractSession(EntityManagerFactoryDelegate.java:216) at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:324) at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:348) at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:311) at com.sample.app.Test.main(Test.java:16)
I resolved above problem by adding derby client driver to
pom.xml file.
<dependencies> <!-- https://mvnrepository.com/artifact/org.eclipse.persistence/eclipselink --> <dependency> <groupId>org.eclipse.persistence</groupId> <artifactId>eclipselink</artifactId> <version>2.7.1</version> <exclusions> <exclusion> <groupId>org.eclipse.persistence</groupId> <artifactId>javax.persistence</artifactId> </exclusion> </exclusions> </dependency> <!-- https://mvnrepository.com/artifact/javax.persistence/javax.persistence-api --> <dependency> <groupId>javax.persistence</groupId> <artifactId>javax.persistence-api</artifactId> <version>2.2</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.derby/derbyclient --> <dependency> <groupId>org.apache.derby</groupId> <artifactId>derbyclient</artifactId> <version>10.14.2.0</version> </dependency> </dependencies>
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