Java static variables in Stored Java

I'm wondering if someone in Oracle could relate their thinking with regards to static variables in stored java and why were these implemented as they were. The aspect I'm referring to specifically is how these are basically working as PLSQL package variables, i.e. with state maintained for the life of the session.
Outside the database, in the "normal" Java world, statics will only live as long as the program is running. But in the Oracle DB world, the static continues to live as long as the session. With this in mind, doesn't this difference compromise the idea of just inserting working Java code into the Database? i.e. static variables now have to be initialized every time a method is called, and cannot be assumed to have default values. Does that not seem like a rather large departure from what a non-DB java programmer would be doing?
Thanks in advance for your thoughts on this.
Joe Tseng

It should generally be the case that all calls in a session see the same static variable values. Some actions will terminate the java session (and lose the static variable state) without ending the RDBMS session, such as calling System.exit from java, but normally this can't happen within a single RDBMS call. Perhaps if you give more details on how you are making the call from java to PLSQL one could say more. In particular, if the call happens to be via the JDBC thin driver then the session running in the JDBC connection will be distinct from the calling session.

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