Showing posts from December, 2018

IDA Pro 6.8 bug when handling Java .class files

We will be studying the following file,
If you try to fire up IDA Pro 6.8 and open the given .class file, and also if you take a look into "I" method, you will notice that it contains an exception handler.
If you switch to the Text view and look at the bottom of the "I" method, you should have something that looks like the following:

The phrase given at the end of the method is not correct:
;met001_slot000                                ; DATA XREF: I+23 r ...     .var 0 is a Ljava/lang/String; from met001_begin to met001_end ;met001_slot001                                ; DATA XREF: I+11 r ... .var 1 is a Ljava/lang/String; frommet001_begin to met001_end   .end method
Because, if you take a look at the very first instruction of the exception handler you will find:
met001_37:                                     ; DATA XREF: I:met001_50 i     astore_1 ; met001_slot001 .line 253     new java/lang/Exception     dup     aload_1 ; met001_slot001     invokevirtual java/lang/Excepti…