Help need to write custom rules

[Gaurav Thakur-3]

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Hi All,

 

 

I`m trying to write some custom FindBugs rules.

I need some help as to figure out how to get the value as highlighted below,

I`m able to get the correct OPCODE value in side the sawopcode method but when I try to call the super class methods to get operand or other information

I always get an exception “xxxmethod called but value not available”;

 

I need to get the value like the value being pushed on to the stack using bipush or sipush.

 

Code::Code(max_stack = 2, max_locals = 2, code_length = 23)

0:    ldc               "AES" (3)

2:    invokestatic      javax.crypto.KeyGenerator.getInstance (Ljava/lang/String

;)Ljavax/crypto/KeyGenerator; (4)

5:    astore_1

6:    aload_1

7:    bipush            127        

9:    invokevirtual     javax.crypto.KeyGenerator.init (I)V (5)

12:   aload_0

13:   getfield          com.symcor.pmd.test.KeyTooShort.k1 Ljavax/crypto/KeyGenerator; (2)

16:   sipush            128

19:   invokevirtual     javax.crypto.KeyGenerator.init (I)V (5)

22:   return

 

Please help me out.

 

Thanks & Regards

Gaurav Thakur

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