Hi Team,
i am developing one application it uses *"platonos plugin engine".*
design is like :
*
server (intiates plugin engine)
|
|---- plugin 1 (dynamically deployed)
|---- plugin 2*
server accepts plugins, install them and manage their lifecycle.
server maintain registry of services provided by plugins
plugin register their *service classes* to server
Note : service classes loaded by plugin class loader
server loaded by system default class loader
when any request come to server server identifies proper service class from
registry and call method of plugin
before calling it is doing
*
Thread.currentThread().setContextClassLoader(pluginClassLoader);*
this works better for non custom objects. like standard JRE objects (Int,
Long,String etc..)
now my one plugin have one custom object
which is visible in plugin class loader. (present in class path of plugin)
but when it used Java *ObjectInputStream to deserialize* custom object
protected Class<?> resolveClass(ObjectStreamClass desc)
throws IOException, ClassNotFoundException
{
....
return Class.forName(name, false, *latestUserDefinedLoader()*);
....
}
*
latestUserDefinedLoader() *causes class not found exception.
*latestUserDefinedLoader() return server class loader (IN DEBUG VIEW)*
actually it should use plugin class loader
but this same scenario works properly in Tomact and other webservers with
different classloaders.
*
i am surprised how to change behaviour of latestUserDefinedLoader()* ??
do i need to change classloader for some security or permission or something
else pls help ???
awaiting for ur reply !!!!
*Regards*
*Dhruv Patel*
*
*
