Constructor Detail

• MonitorInfo

  public MonitorInfo(String className,
             int identityHashCode,
             int stackDepth,
             StackTraceElement stackFrame)

  Construct a MonitorInfo object.

  Parameters:

  className - the fully qualified name of the class of the lock object.

  identityHashCode - the identity hash code of the lock object.

  stackDepth - the depth in the stack trace where the object monitor was locked.

  stackFrame - the stack frame that locked the object monitor.

  Throws:

  IllegalArgumentException - if stackDepth ≥ 0 but stackFrame is null, or stackDepth < 0 but stackFrame is not null.

Method Detail

• getLockedStackDepth

  public int getLockedStackDepth()

  Returns the depth in the stack trace where the object monitor was locked. The depth is the index to the StackTraceElement array returned in the ThreadInfo.getStackTrace() method.

  Returns:

  the depth in the stack trace where the object monitor was locked, or a negative number if not available.

• getLockedStackFrame

  public StackTraceElement getLockedStackFrame()

  Returns the stack frame that locked the object monitor.

  Returns:

  StackTraceElement that locked the object monitor, or null if not available.

• from

  public static MonitorInfo from(CompositeData cd)

  Returns a MonitorInfo object represented by the given CompositeData. The given CompositeData must contain the following attributes as well as the attributes specified in the mapped type for the LockInfo class:

  Attribute Name	Type
  lockedStackFrame	CompositeData as specified in the stackTrace attribute defined in the ThreadInfo.from method.
  lockedStackDepth	java.lang.Integer

  Parameters:

  cd - CompositeData representing a MonitorInfo

  Returns:

  a MonitorInfo object represented by cd if cd is not null; null otherwise.

  Throws:

  IllegalArgumentException - if cd does not represent a MonitorInfo with the attributes described above.