Java Security Exception

[Kevin Florish]

Hi

Am trying to recreate the first tutorial from Cameron McKenzie's book 'Hibernate Made Easy' but have run into this security problem and am totally baffled

User Class

  package hibernate;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;

@Entity
public class User {
	private Long id;
	private String password;
	
	@Id
	@GeneratedValue
	private Long getId() {
		return id;
	}
	
	private void setId(Long id) {
		this.id = id;
	}

	private String getPassword() {
		return password;
	}
	
	private void setPassword(String password) {
		this.password = password;
	}
	
	public static void main(String args[]) {
		AnnotationConfiguration config = new AnnotationConfiguration();
		config.addAnnotatedClass(User.class);
		config.configure();
		new SchemaExport(config).create(true, true);
	}

}
  

hibernate.cfg.xml

<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
                         "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
	<session-factory name="examscam">
		<property name="connection.url">jdbc:mysql://localhost.examscam</property>
		<property name="connection.username">root</property>
		<property name="connection.password">root</property>
		<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
		<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
		<property name="transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
		<property name="current_session_context_class">thread</property>
		<!--this will show us all the sql statements-->
		<property name="hibernate.show_sql">true</property>
	</session-factory>
</hibernate-configuration>    

Classpath

 <?xml version="1.0" encoding="UTF-8"?>
<classpath>
	<classpathentry kind="src" path="src"/>
	<classpathentry kind="con" 
                path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.module.container"/>
	<classpathentry kind="con" path="eclipse.fproj.jdt.libprov.osgi/jpt.jpa">
		<attributes>
			<attribute name="org.eclipse.jst.component.dependency" value="../"/>
		</attributes>
	</classpathentry>
	<classpathentry kind="lib" path="C:/hibernate-distribution-3.5.1-Final/hibernate3.jar"/>
	<classpathentry kind="lib"
                      path="C:/Program Files/MySQL/mysql-connector-java-5.1.12/mysql-connector-java-5.1.12-bin.jar"/>
	<classpathentry kind="lib" path="C:/hibernate-distribution-3.5.1-Final/lib/required/dom4j-1.6.1.jar"/>
	<classpathentry kind="lib" path="C:/hibernate-distribution-3.5.1-Final/lib/required/jta-1.1.jar"/>
	<classpathentry kind="lib" path="C:/hibernate-distribution-3.5.1-Final/lib/required/antlr-2.7.6.jar"/>
	<classpathentry kind="lib" path="C:/hibernate-distribution-3.5.1-Final/lib/required/commons-collections-3.1.jar"/>
	<classpathentry kind="lib" path="C:/hibernate-distribution-3.5.1-Final/lib/required/javassist-3.9.0.GA.jar"/>
	<classpathentry kind="lib" path="C:/slf4j-1.5.11/slf4j-api-1.5.11.jar"/>
	<classpathentry kind="lib" path="C:/slf4j-1.5.11/slf4j-simple-1.5.11.jar"/>
	<classpathentry kind="lib" path="C:/hibernate-distribution-3.5.1-Final/lib/jpa/hibernate-jpa-2.0-api-1.0.0.Final.jar"/>
	<classpathentry kind="output" path="bin"/>
</classpath>
  

Stacktrace

 16 [main] INFO org.hibernate.cfg.annotations.Version - Hibernate Annotations 3.5.1-Final
125 [main] INFO org.hibernate.cfg.Environment - Hibernate 3.5.1-Final
141 [main] INFO org.hibernate.cfg.Environment - hibernate.properties not found
219 [main] INFO org.hibernate.cfg.Environment - Bytecode provider name : javassist
375 [main] INFO org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling
1110 [main] INFO org.hibernate.annotations.common.Version - Hibernate Commons Annotations 3.2.0.Final
1125 [main] INFO org.hibernate.cfg.Configuration - configuring from resource: /hibernate.cfg.xml
1125 [main] INFO org.hibernate.cfg.Configuration - Configuration resource: /hibernate.cfg.xml
1625 [main] INFO org.hibernate.cfg.Configuration - Configured SessionFactory: examscam
1766 [main] INFO org.hibernate.dialect.Dialect - Using dialect: org.hibernate.dialect.MySQLDialect
2532 [main] INFO org.hibernate.cfg.AnnotationBinder - Binding entity from annotated class: hibernate.User
Exception in thread "main" java.lang.SecurityException: class "javax.persistence.Cacheable"'s
                     signer information does not match signer information of other classes in the same package
	at java.lang.ClassLoader.checkCerts(Unknown Source)
	at java.lang.ClassLoader.preDefineClass(Unknown Source)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at org.hibernate.cfg.AnnotationBinder.determineCacheSettings(AnnotationBinder.java:946)
	at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:589)
	at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:636)
	at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:359)
	at org.hibernate.cfg.Configuration.generateDropSchemaScript(Configuration.java:838)
	at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:128)
	at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:91)
	at hibernate.User.main(User.java:37)
   

Have reinstalled MySQL with a password of root to ensure but still the same error and think I may be barking up the wrong tree.

Any help greatly appreciated.

Thanks Kevin

[Kevin Florish]

It seems I was barking up the wrong tree although I haven't resolved the problem.

signer information does not match signer information of other classes in the same package
seems to occur when digital signatures are involved it seems.

I have run jarsigner -verify on all jars within the classpath and none seemed to be signed so this doesnt appear to be the problem.

I have also moved the User class into a seperate package from the rest of the project and still get the same security exception, so am still kinda stuck on Chapter 1 of the book, very frustrating.

If anyone has had this problem could you please post a resolution.

Many Thanks Kevin.

[Kevin Florish]

In the end I used Maven 2 to solve the project dependencies and this has gottem me further along with the test example although I still have issues connecting to MySQL 5.1 at the moment.

For anyone else who comes across this problem here is the pom.xml file I used. The artifacts are all from my local drive and are from the latest versions of hibernate and MySql at the time of writing..

  <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>Chap1</groupId>
  <artifactId>Chap1</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <dependencies>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.12</version>
      <scope>compile</scope>
    </dependency>
    <dependency>
    	<groupId>org.hibernate</groupId>
    	<artifactId>hibernate-3</artifactId>
    	<version>3.5.1.Final</version>
    	<scope>system</scope>
    	<systemPath>C:\hibernate-distribution-3.5.1-Final/hibernate3.jar</systemPath>
    </dependency>
    <dependency>
    	<groupId>org.hibernate</groupId>
    	<artifactId>dom4j</artifactId>
    	<version>1.6.1</version>
    	<scope>system</scope>
    	<systemPath>C:\hibernate-distribution-3.5.1-Final\lib\required\dom4j-1.6.1.jar</systemPath>
    </dependency>
    <dependency>
    	<groupId>org.hibernate</groupId>
    	<artifactId>slf4j-simple</artifactId>
    	<version>1.5.11</version>
    	<scope>system</scope>
    	<systemPath>C:\slf4j-1.5.11\slf4j-simple-1.5.11.jar</systemPath>
    </dependency>
    <dependency>
    	<groupId>org.hibernate</groupId>
    	<artifactId>sl4j</artifactId>
    	<version>1.5.8</version>
    	<scope>system</scope>
    	<systemPath>C:\hibernate-distribution-3.5.1-Final\lib\required\slf4j-api-1.5.8.jar</systemPath>
    </dependency>
    <dependency>
    	<groupId>org.hibernate</groupId>
    	<artifactId>jpa</artifactId>
    	<version>1.0.0</version>
    	<scope>system</scope>
    	<systemPath>C:\hibernate-distribution-3.5.1-Final\lib\jpa\hibernate-jpa-2.0-api-1.0.0.Final.jar</systemPath>
    </dependency>

  </dependencies>
</project>
  

Hope this may help someone else from spending a week trying to rectify this problem when trying to do the first book example.

[shamsudeen saithalavi]

I came across this problem while converting Hibernate xml code to annotation based.
Visit here for the solution
http://www.smashplus.info/2012/11/javalangsecurityexception-class.html