Shared JNI Library

Question

Hello:
I have two different web applications hosted on a server. Both of them use a servlet
to initialize their own environment. This servlet needs to load a JNI library.
That means two serlvet contexts will use the same library. The question is:
When the first web application is done in initialization, and server is trying
to load the second web application, I will get unsatisfiedLinkError message, that
is like "the JNI library is loaded by another".
I have no idea for this issue. Could anyone give me some ideas, doing some configuration
in webLogic server or changing the design structure?
I appreciate for any help.
Johnson Ouyang

Answer 1

Thank you. I fixed my issue.
"Dimitri I. Rakitine" <[email protected]> wrote:
Native library can only be loaded by one classloader, so just move
class(es) which use JNI to the system classpath. It will solve the
problem you are currently seeing and will make your application redeployable.
Johnson <[email protected]> wrote:
Hello:
I have two different web applications hosted on a server. Both of themuse a servlet
to initialize their own environment. This servlet needs to load a JNIlibrary.
That means two serlvet contexts will use the same library. The questionis:
When the first web application is done in initialization, and serveris trying
to load the second web application, I will get unsatisfiedLinkErrormessage, that
is like "the JNI library is loaded by another".
I have no idea for this issue. Could anyone give me some ideas, doingsome configuration
in webLogic server or changing the design structure?
I appreciate for any help.
Johnson Ouyang --
Dimitri