Auto-enhancement within a Web Application
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Key: OPENJPA-318
URL: https://issues.apache.org/jira/browse/OPENJPA-318
Project: OpenJPA
Issue Type: Bug
Components: jdbc, jpa, sql
Affects Versions: 0.9.7
Environment: Java JRE 1.5
OpenJPA 0.9.7
IDE Eclipse
Tomcat 5.0
MySQL 4.1.9 DataBase (EasyPhp 1.8.0.1)
Reporter: Frederic Jeanneau
Hello.
I'm still french, so excuse my english one more time.
I have a problem while trying to persist a very simple object, within a web
application.
With a web form I create an object, and then the web app try to persist it.
I have just a message with a number and a text.
My Message class is :
@Entity
@Inheritance (strategy = InheritanceType.TABLE_PER_CLASS)
@Table(name = "MESG")
@Id
@Column(name = "NUM_MESG", nullable = false, length = 10)
@Basic
@Column(name = "TXT_MESG", nullable = false, length = 60)
The table is created, but when I send an object to the EntityManager, it fails,
because :
Attempt to cast instance "2 [mesobjets.Message]" to PersistenceCapable failed.
Ensure that it has been enhanced.
I tried to launch the server whith -the javaagent argument, but the launching
fail, because :
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(Unknown
Source)
Caused by: java.lang.NoClassDefFoundError:
org/apache/commons/lang/exception/NestableRuntimeException
at java.lang.ClassLoader.defineClass1(Native Method)
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$100(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.apache.openjpa.enhance.PCEnhancerAgent.premain(PCEnhancerAgent.java:47)
... 5 more
FATAL ERROR in native method: processing of -javaagent failed
So, if someone know how to auto-enhance on a server, I'm waiting for their
ideas, and i'm still trying to solve the problem. Thanks for your help
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