Pre-Serialized Objects

Arbitrary Java objects stored in "pre-serialized" form
Fast transfer to/from network or disk
Zero-copy communication over VIA, RMI, etc.

User describes object like a C 'struct':

      public class MyObject {
         public int someInt;     // Offset 0
         public byte someByte1;  // Offset 4
         public byte someByte2;  // Offset 5
         public MyObject ref;    // Can do references too!
      }

Jaguar transforms field accesses to raw memory access
e.g., "getfield MyObject.someByte2"
reads 8-bit value from (object base + 5)