[Soot-list] Problems with Transform Chain

[Julien Klaus]

Hello Everybody,

I want to transform a chain. My problem occours when I copy a Unit with 
more than one predecessor or successor and insert it in the chain. The 
copy method of the unit class does not copy these branches to the other 
units and a exception occurs.

Caused by: java.lang.RuntimeException: Unitbox points outside unitChain! 
to unit : nop in <test.BranchBig: void branch(int,int)>
     at soot.Body.validateUnitBoxes(Body.java:307)
     at soot.Body.validate(Body.java:231)
     at soot.Printer.printTo(Printer.java:322)
     at soot.Printer.printTo(Printer.java:221)
     at soot.PackManager.writeClass(PackManager.java:896)
     at soot.PackManager.writeOutput(PackManager.java:475)
     at soot.PackManager.writeOutput(PackManager.java:400)
     at soot.Main.run(Main.java:199)
     at soot.Main.main(Main.java:141)

Does anyone have an idea or a snippet/tutorial which can help me?

Thank you.

Regards,
Julien