Packages loaded as partial

I am working in my own created packages.
But, when i see in the admin page - package management.
It is showing my packages as
Enables ---- ‘yes’
Loaded ---- ‘partial’
Even after reloading them, iam getting the same problem.
And also, in the error page in the admin section,
It is showing some error with the packages as

java.lang.UnsupportedClassVersionError: srinathWmPractice (Unsupported major.minor version 49.0)

That seems your package have classes compiled with Java 1.5 compatibility, while your IS runs with Java 1.4?

Or maybe is 1.6 while you run IS on 1.5 can’t remember now.

Just recompile the Java code with same Java version, that will resolve.

Hi Dev,
You are exactly right. I have changed my JVM version with my IS compatible JVM version. Now it worked for me.
Thank you very much.