Incorrect binding code generated for long data type (Won't DUP type on stack
top 'long' because it must occupy exactly one slot, not '2'.)
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Key: JIBX-213
URL: http://jira.codehaus.org/browse/JIBX-213
Project: JiBX
Issue Type: Bug
Components: Generator Tools
Affects Versions: JiBX 1.1.5
Environment: Windows XP Pro SP2, CPU x86 Family 15 Model 4 Stepping 1
GenuineIntel ~3200 Mhz, RAM 2GB
Java(TM) SE Runtime Environment (build 1.6.0_04-b12)
Reporter: Serguei Ouklonski
Attachments: testcases.zip
For simple input-only binding incorrect code is generated when "long" data type
is present. Identical code with "int" instead of "long" is processed correctly.
Attached is an archive containing two test cases:
testcases
bad-with-long
bind
good-with-int
bind
"bind" is a top-level java package. InTest2 is a main class, InTest2.xml is
input file.
---------------------------------------------------------------------------------------------------------------------
An attempt to run "bad-with-long" variant resulted in:
Exception in thread "main" java.lang.VerifyError: (class:
bind/JiBX_MungeAdapter, method: JiBX_test_binding_in2_unmarshal_1_4 signature:
(Lbind/MyData;Lorg/jibx/runtime/impl/UnmarshallingContext;)Lbind/MyData;)
Attempt to split long or double on the stack
at bind.JiBX_test_binding_in2MyData_access1.unmarshal()
at
org.jibx.runtime.impl.UnmarshallingContext.unmarshalElement(UnmarshallingContext.java:2537)
at
org.jibx.runtime.impl.UnmarshallingContext.unmarshalDocument(UnmarshallingContext.java:2680)
at bind.InTest2.main(InTest2.java:19)
Output from "org.jibx.binding.Compile -b -l bind\test-binding-in2.xml" contains
(among other diagnostics):
Verification failure on method JiBX_test_binding_in2_unmarshal_1_2 of class
bind.JiBX_MungeAdapter:
VERIFIED_REJECTED
Instruction invokeinterface[185](5) 84 constraint violated: Referenced method
'setStatus' with expected signature not found in c
lass 'bind.MyData'. The native verfier does allow the method to be declared in
some superinterface, which the Java Virtual Machi
ne Specification, Second Edition does not.
Verification failure on method JiBX_test_binding_in2_unmarshal_1_0 of class
bind.JiBX_MungeAdapter:
VERIFIED_REJECTED
Constraint violated in method 'public static bind.SomeData
JiBX_test_binding_in2_unmarshal_1_0(bind.SomeData arg1, org.jibx.runt
ime.impl.UnmarshallingContext arg2)
throws org.jibx.runtime.JiBXException':
Instruction DUP constraint violated: Won't DUP type on stack top 'long' because
it must occupy exactly one slot, not '2'.
InstructionHandle: 43: dup[89](1)
Execution Frame:
Local Variables:
0: bind.SomeData
1: org.jibx.runtime.impl.UnmarshallingContext
2: boolean[]
3: <unknown object>
4: <unknown object>
OperandStack:
Slots used: 4 MaxStack: 5.
long (Size: 2)
bind.SomeData (Size: 1)
bind.SomeData (Size: 1)
Execution flow:
0: aload_0 [InstructionContext]
1: iconst_1 [InstructionContext]
2: newarray boolean [InstructionContext]
4: astore_2 [InstructionContext]
5: nop [InstructionContext]
6: aload_1 [InstructionContext]
7: aconst_null [InstructionContext]
8: ldc 33 [InstructionContext]
10: invokevirtual 37 [InstructionContext]
13: ifeq -> 53 [InstructionContext]
16: aload_2 [InstructionContext]
17: iconst_0 [InstructionContext]
18: baload [InstructionContext]
19: ifeq -> 31 [InstructionContext]
31: aload_2 [InstructionContext]
32: iconst_0 [InstructionContext]
33: iconst_1 [InstructionContext]
34: bastore [InstructionContext]
35: aload_0 [InstructionContext]
36: aload_1 [InstructionContext]
37: aconst_null [InstructionContext]
38: ldc 33 [InstructionContext]
40: invokevirtual 47 [InstructionContext]
43: dup [InstructionContext]
Attached is an archive containing two test cases:
testcases
bad-with-long
bind
good-with-int
bind
"bind" is top-level java package.
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