Package Summary  Overview Summary

class:MonitorInfo [NONE]
public class MonitorInfoextends LockInfo
Information about an object monitor lock. An object monitor is locked when entering a synchronization block or method on that object.

MXBean Mapping

MonitorInfo is mapped to a CompositeData with attributes as specified in the from method.
Since:
1.6

constructor:MonitorInfo(java.lang.String,int,int,java.lang.StackTraceElement) [NONE]

  • 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:getLockedStackDepth() [NONE]

  • 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.

    • method:getLockedStackFrame() [NONE]

    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.

    method:from(javax.management.openmbean.CompositeData) [NONE]

    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:
    The attributes and their types the given CompositeData contains
    Attribute Name Type
    lockedStackFrameCompositeData for StackTraceElement as specified in ThreadInfo.from(CompositeData) method.
    lockedStackDepthjava.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.

    © 2023 Oracle Corporation and/or its affiliates