Recently we are facing an issue with JNLP in our application. We have JNLP jar resource which has some class files and a dll file. Whenever JNLP is launched, this jar file should be loaded into client machine. And when we request for the dll that is present in jar, it should load from client cache. However this is not happening when we are launching JNLP from server.

I was able to see the same behavior in 8u251,8u241,8u231,8u221, 8u211 also.

dll file is present as part of JICTool.jar. And that doesn’t load. This used to work previously. JICTool.jar has java classes along with dll file. It’s a heavy jar. Does the size of jar have anything to do with loading?