Kabir Khan [
http://community.jboss.org/people/kabir.khan%40jboss.com] replied to the
discussion
"Issues using Javassist TypeInfoFactory in other projects"
To view the discussion, visit:
http://community.jboss.org/message/534602#534602
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Another issue is that dynamically created classes are not found in the classpools.
Dynamic proxies are not found at all:
0 DEBUG [JDKLazyInstantiationTestCase] ==== setUp
org.jboss.test.kernel.lazy.test.JDKLazyInstantiationTestCase ====
5 DEBUG [JDKLazyInstantiationTestCase] ==== Starting testLazy ====
20 DEBUG [KernelFactory] Starting JBoss Kernel construction...
53 WARN [PropertyConfiguration] Factory:
org.jboss.reflect.plugins.javassist.JavassistTypeInfoFactory@4393722c
466 DEBUG [KernelFactory] Completed JBoss Kernel construction. Duration: 446
milliseconds
568 ERROR [AbstractKernelController] Error installing to Instantiated: name=beanProxy
state=Described
java.lang.RuntimeException: Class not found: $Proxy0
at
org.jboss.reflect.plugins.javassist.JavassistTypeInfoFactoryImpl.get(JavassistTypeInfoFactoryImpl.java:311)
at
org.jboss.reflect.plugins.javassist.JavassistTypeInfoFactoryImpl.getTypeInfo(JavassistTypeInfoFactoryImpl.java:519)
at
org.jboss.reflect.plugins.javassist.JavassistTypeInfoFactory.getTypeInfo(JavassistTypeInfoFactory.java:51)
at
org.jboss.classadapter.plugins.BasicClassAdapterFactory.getClassAdapter(BasicClassAdapterFactory.java:54)
Neither are the javassist ProxyFactory proxies, since they just define the class in the
classloader with no way to find them from the pools:
0 DEBUG [JavassistLazyInstantiationTestCase] ==== setUp
org.jboss.test.kernel.lazy.test.JavassistLazyInstantiationTestCase ====
3 DEBUG [JavassistLazyInstantiationTestCase] ==== Starting testLazy ====
18 DEBUG [KernelFactory] Starting JBoss Kernel construction...
47 WARN [PropertyConfiguration] Factory:
org.jboss.reflect.plugins.javassist.JavassistTypeInfoFactory@4393722c
514 DEBUG [KernelFactory] Completed JBoss Kernel construction. Duration: 496
milliseconds
618 ERROR [AbstractKernelController] Error installing to Instantiated: name=beanProxy
state=Described
java.lang.RuntimeException: Class not found:
org.jboss.test.kernel.lazy.support.IRare_$$_javassist_0
at
org.jboss.reflect.plugins.javassist.JavassistTypeInfoFactoryImpl.get(JavassistTypeInfoFactoryImpl.java:311)
at
org.jboss.reflect.plugins.javassist.JavassistTypeInfoFactoryImpl.getTypeInfo(JavassistTypeInfoFactoryImpl.java:519)
at
org.jboss.reflect.plugins.javassist.JavassistTypeInfoFactory.getTypeInfo(JavassistTypeInfoFactory.java:51)
at
org.jboss.classadapter.plugins.BasicClassAdapterFactory.getClassAdapter(BasicClassAdapterFactory.java:54)
In AOP what we did was to write the class bytes to the in memory vfs location from the aop
classpools, so that when trying to look up the CtClass later there is a resource path for
the class bytes:
URL outputURL = new URL(tempURL.toString() + "/" + classFileName);
//Write the classfile to the temporary url
synchronized (tmplock)
{
if (trace) logger.trace(this + " " + pool + ".toClass()
myloader:" + myloader + " writing bytes to " + tempURL);
ByteArrayOutputStream byteout = new ByteArrayOutputStream();
BufferedOutputStream out = new BufferedOutputStream(byteout);
out.write(cc.toBytecode());
out.flush();
out.close();
byte[] classBytes = byteout.toByteArray();
MemoryContextFactory factory = MemoryContextFactory.getInstance();
factory.putFile(outputURL, classBytes);
Going to check with Chiba, but I'll see if I can modify javassist to allow
ProxyFactory and ProxyFactoryHelper to accept an interface like
interface ByteRecorder{
void writeBytes(String classname, byte[]) throws IOException
}
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