@Sanne Grinovero You made a good point about 2048 Entries. I have more than one war caching data into one heap that is why it is more than 2048. I guess these entries are large enough that I can not store 10K(across multiple war files) of them on my heap. I can only take one dump per server so i really can not separate them but I have shared screenshots of individual Potential leak as reported by MAT tool, those are still relevant.

@Guillaume Smet Please find the attached screen shot. Looks each query cache is taking 25MB ish. That seems a lot to me. I am sure i have large number(200 or so) of parameters but still 25MB is a lot.