Problema ao executar o .jad

Olá!!!
Fui executar o arquivo .jad
E abriu o emulador da Sun, mas quando fui entrar no menu deu o erro abaixo,
alguém sabe qual é o problema???
Obrigado pela atenção!!!

Error:
Running with storage root DefaultColorPhone
Running with locale: Portuguese_Brazil.1252
Method…: 10221664 'com/sun/midp/midlet/MIDletState.createMIDlet (static)'
Stack Chunk…: 22700ac
Frame Pointer…: 2270104
Current IP…: 10327513 = 103274f6 + offset 29
Previous Frame…: 22700cc
Previous IP…: 103bb579 (offset 22)
Frame size…: 7 (1 arguments, 6 local variables)
Argument[0]…: 227098c
Local[1]…: 0
Local[2]…: 23edfc4
Local[3]…: 228000c
Local[4]…: 23edfd8
Local[5]…: 10263184
Local[6]…: 23edfa4
Operand[1]…: 227098c

Method…: 10283b04 'com/sun/midp/midlet/Selector.run (virtual)'
Stack Chunk…: 22700ac
Frame Pointer…: 22700cc
Current IP…: 103bb579 = 103bb563 + offset 22
Previous Frame…: 0
Previous IP…: 1
Frame size…: 6 (1 arguments, 5 local variables)
Argument[0]…: 2270b30
Local[1]…: 22800e8
Local[2]…: 227098c
Local[3]…: 0
Local[4]…: 0
Local[5]…: 0
Operand[1]…: 22800e8

VM status:
Instruction pointer.: 10327513 (offset within invoking method: 29)
Next instruction…: 0x4c
Frame pointer…: 2270104
Local pointer…: 22700e8
Stack size…: 128; sp: 227011c; ranges: 22700b4-22702b4;
Contents of the current stack frame:
22700e8: 227098c (lp)
22700ec: 0
ALERT: java/lang/ClassFormatError: Bad version information.
22700f0: 23edfc4
22700f4: 228000c
22700f8: 23edfd8
22700fc: 10263184
2270100: 23edfa4
2270104: 22700cc (fp)
2270108: 103bb579
227010c: 22700e4
2270110: 10221664
2270114: 22700ac
2270118: 0 (end of frame)
227011c: 227098c (sp)
Execution stack contains 108 items:
2270b30
22800e8
227098c
0
0
0
0
1
23edfa8
10283b04
22700ac
0
22800e8
227098c
0
23edfc4
228000c
23edfd8
10263184
23edfa4
22700cc
103bb579
22700e4
10221664
22700ac
0
227098c

Execution completed.
3426438 bytecodes executed
111 thread switches
1647 classes in the system (including system classes)
17787 dynamic objects allocated (537752 bytes)
2 garbage collections (462892 bytes collected)
Execution completed.
3426438 bytecodes executed
111 thread switches
1647 classes in the system (including system classes)
17787 dynamic objects allocated (537752 bytes)
2 garbage collections (462892 bytes collected)