Class ClassDefinition

java.lang.Object
java.lang.instrument.ClassDefinition
public final class ClassDefinition extends Object
This class serves as a parameter block to the Instrumentation.redefineClasses method. Serves to bind the Class that needs redefining together with the new class file bytes.
Since:
1.5
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    ClassDefinition(Class<?> theClass, byte[] theClassFile)
    Creates a new ClassDefinition binding using the supplied class and class file bytes.

  • Method Summary

    Modifier and Type
    Method
    Description
    Class<?>
    getDefinitionClass()
    Returns the class.
    byte[]
    getDefinitionClassFile()
    Returns the array of bytes that contains the new class file.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • Constructor Details

    • ClassDefinition

      public ClassDefinition(Class<?> theClass, byte[] theClassFile)
      Creates a new ClassDefinition binding using the supplied class and class file bytes. Does not copy the supplied buffer, just captures a reference to it.
      Parameters:
      theClass - the Class that needs redefining
      theClassFile - the new class file bytes
      Throws:
      NullPointerException - if the supplied class or array is null.

  • Method Details

    • getDefinitionClass

      public Class<?> getDefinitionClass()
      Returns the class.
      Returns:
      the Class object referred to.

    • getDefinitionClassFile

      public byte[] getDefinitionClassFile()
      Returns the array of bytes that contains the new class file.
      Returns:
      the class file bytes.