static class could not use by SAP AS[JAVA]

hello everyone:

I migrate one J2ee application from a standard J2EE server ,deploy is OK,but it does not work.

I found that the static class will not be used in web tier,the detail is :

there is a static class to implement the MD5 encryption,it will encrypt the data and return encryptd data .

when I use this static class at my MainServlet ,which is a servlet,exception throw,and I copy the encrypt method as private method of the servlet ,it works!

now,I really puzzle with it,the web container of SAP AS will not support static class?or it's a BUG of it?or something else?

regards for any

steff

Message was edited by: steff yan