Problem
Using Hibernate 3.6.3, but hits this javassist not found error, see below for error stacks :
Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/MethodFilter
...
at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:77)
... 16 more
Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 21 more
Solution
javassist.jar is missing, and you can get the latest from JBoss Maven repositorty.
File : pom.xml
<project ...>
<repositories>
<repository>
<id>JBoss repository</id>
<url>http://repository.jboss.org/nexus/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.6.3.Final</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.1.GA</version>
</dependency>
</dependencies>
</project>
My project is spring-jpa maven
I am facing a problem with spring-JPA maven project ,it is downloading two versions of javassist due to which i am getting Hibernate exception _$$_javassist_0 cannot be cast to javassist.util.proxy.Proxy error
-javassist-3.7.ga.jar
-javassist-3.18.1-GA.jar
I am using version 4.3.7.Final and spring version 4.1.1.RELEASE
Do you have any idea how i can exclude the oldder dependency of javassist which is javassist-3.7.ga.jar.
I tries excluding it from
as mentioned here http://stackoverflow.com/questions/22481540/hibernate-exception-javassist-0-cannot-be-cast-to-javassist-util-proxy-proxy but no luck.Do you have any idea how can we exclude old javassist dependency
Thanks a bunch. You solved two of my problems today – one with slf-log4j and this one – Javaassist.
Amazing!
I kept getting this exception with Hibernate (3.6.10.Final) even after I added the mentioned jar:
http://mvnrepository.com/artifact/javassist/javassist/3.12.1.GA
javassist
javassist
3.12.1.GA
Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
…
Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/MethodFilter
The solution was to add the javassist bundle instead:
http://mvnrepository.com/artifact/org.javassist/javassist/3.17.1-GA
org.javassist
javassist
3.17.1-GA
your suggestion worked… thx!
Thank you!
You solved my problem for this runtime exception:
java.lang.ClassNotFoundException : javassist.util.proxy.MethodFilter
Your Maven dependency entries were exactly what I needed!
(It appears that this is a transitive dependency missed by Hibernate’s POM.)
When I see your photo on a google search hit, I know it’s reliable. Keep up the good work, java buddy!
@Entity
public class InvPriceLevel implements Serializable {
@OneToMany(mappedBy = “invPriceLevel”,cascade=CascadeType.ALL,fetch=FetchType.LAZY)
private List invPricelistList;
}
@Entity
public class InvPriceList implements Serializable {
@ManyToOne
@JoinColumn(name = “iplid”)
private InvPriceLevel invPriceLevel;
}
//==========Bissness logic
public InvPriceLevel getInvPriceLevelById(int id)
{
fact.openSession();
InvPriceLevel invPriceLevel (InvPriceLevel)session.load(InvPriceLevel.class, id);
sess.close();
return invPriceLevel
}
//==================In the front end
getInvPriceLevelById(1).getInvPricelistList().size() //==========Error org.hibernate.LazyInitializationException
WHAT IS THE DAO CONFIGURATION /WHAT IS THE DAO PATTERN?
I want to open and close within the method and fetch type LAZY but I want to resolve the solution.
Download this file…
https://repository.jboss.org/nexus/content/groups/public/javassist/javassist/3.4.GA/javassist-3.4.GA.jar