Class Pass2Verifier

java.lang.Object
org.apache.bcel.verifier.PassVerifier
org.apache.bcel.verifier.statics.Pass2Verifier
All Implemented Interfaces:
Constants
public final class Pass2Verifier extends PassVerifier implements Constants
This PassVerifier verifies a class file according to pass 2 as described in The Java Virtual Machine Specification, 2nd edition. More detailed information is to be found at the do_verify() method's documentation.
See Also:

  • Constructor Details

    • Pass2Verifier

      public Pass2Verifier(Verifier verifier)
      Should only be instantiated by a Verifier.
      Parameters:
      verifier - The verifier.
      See Also:

  • Method Details

    • do_verify

      public VerificationResult do_verify()
      Pass 2 is the pass where static properties of the class file are checked without looking into "Code" arrays of methods. This verification pass is usually invoked when a class is resolved; and it may be possible that this verification pass has to load in other classes such as superclasses or implemented interfaces. Therefore, Pass 1 is run on them.

      Note that most referenced classes are not loaded in for verification or for an existence check by this pass; only the syntactical correctness of their names and descriptors (a.k.a. signatures) is checked.

      Very few checks that conceptually belong here are delayed until pass 3a in JustIce. JustIce does not only check for syntactical correctness but also for semantical sanity - therefore it needs access to the "Code" array of methods in a few cases. Please see the pass 3a documentation, too.

      Specified by:
      do_verify in class PassVerifier
      Returns:
      The VerificationResult.
      See Also:

    • getLocalVariablesInfo

      public LocalVariablesInfo getLocalVariablesInfo(int methodNr)
      Gets a LocalVariablesInfo object containing information about the usage of the local variables in the Code attribute of the said method or null if the class file this Pass2Verifier operates on could not be pass-2-verified correctly. The method number method_nr is the method you get using Repository.lookupClass(myOwner.getClassname()).getMethods()[method_nr];. You should not add your own information. Leave that to JustIce.
      Parameters:
      methodNr - The method number.
      Returns:
      The LocalVariablesInfo object or null.