Class LockInfo

java.lang.Object
java.lang.management.LockInfo
Direct Known Subclasses:
MonitorInfo

public class LockInfo extends Object
This class represents information about locked objects.
Since:
1.6
  • Constructor Details

    • LockInfo

      public LockInfo(String className, int identityHashCode)
      Creates a new LockInfo instance.
      Parameters:
      className - the name (including the package prefix) of the associated lock object's class
      identityHashCode - the value of the associated lock object's identity hash code. This amounts to the result of calling System.identityHashCode(Object) with the lock object as the sole argument.
      Throws:
      NullPointerException - if className is null
  • Method Details

    • getClassName

      public String getClassName()
      Returns the name of the lock object's class in fully qualified form (i.e. including the package prefix).
      Returns:
      the associated lock object's class name
    • getIdentityHashCode

      public int getIdentityHashCode()
      Returns the value of the associated lock object's identity hash code
      Returns:
      the identity hash code of the lock object
    • from

      public static LockInfo from(CompositeData compositeData)
      Returns a LockInfo object represented by the given CompositeData. The given CompositeData must contain the following attributes:
      The attributes and the types the given CompositeData contains
      Attribute Name Type
      className java.lang.String
      identityHashCode java.lang.Integer
      Parameters:
      compositeData - CompositeData representing a LockInfo
      Returns:
      a LockInfo object represented by compositeData if compositeData is not null; null otherwise.
      Throws:
      IllegalArgumentException - if compositeData does not represent a LockInfo with the attributes described above.
      Since:
      1.8
    • toString

      public String toString()
      Provides callers with a string value that represents the associated lock. The string will hold both the name of the lock object's class and it's identity hash code expressed as an unsigned hexadecimal. i.e.

      getClassName()  + @ + Integer.toHexString(getIdentityHashCode())

      Overrides:
      toString in class Object
      Returns:
      a string containing the key details of the lock