Use the sp_configure system procedure to change memory allocations for Java in Adaptive Server. You can change the memory allocation for:
size of global fixed heap – specifies memory space for internal data structures.
size of process object fixed heap – specifies the total memory space available for all user connections using the Java VM.
size of shared class heap – specifies the shared memory space for all Java classes called into the Java VM.
See “Java Services” in the System Administration Guide for complete information about these configuration parameters.