To limit the memory used by Java applications for a database.
Integer
4000000
This option sets the maximum size (in bytes) of that part of the memory that is allocated to Java applications on a per-database basis.
Per database memory allocations include Java class definitions. As class definitions are effectively read-only, they are shared between connections. Consequently, their allocations come right out of the fixed cache, and this option sets a limit on the size of these allocations.