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src/java.management/share/classes/java/lang/management/MonitorInfo.java
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*** 31,41 ****
/**
* Information about an object monitor lock. An object monitor is locked
* when entering a synchronization block or method on that object.
*
* <h3>MXBean Mapping</h3>
! * <tt>MonitorInfo</tt> is mapped to a {@link CompositeData CompositeData}
* with attributes as specified in
* the {@link #from from} method.
*
* @author Mandy Chung
* @since 1.6
--- 31,41 ----
/**
* Information about an object monitor lock. An object monitor is locked
* when entering a synchronization block or method on that object.
*
* <h3>MXBean Mapping</h3>
! * {@code MonitorInfo} is mapped to a {@link CompositeData CompositeData}
* with attributes as specified in
* the {@link #from from} method.
*
* @author Mandy Chung
* @since 1.6
*** 44,65 ****
private int stackDepth;
private StackTraceElement stackFrame;
/**
! * Construct a <tt>MonitorInfo</tt> object.
*
* @param className the fully qualified name of the class of the lock object.
* @param identityHashCode the {@link System#identityHashCode
* identity hash code} of the lock object.
* @param stackDepth the depth in the stack trace where the object monitor
* was locked.
* @param stackFrame the stack frame that locked the object monitor.
* @throws IllegalArgumentException if
! * <tt>stackDepth</tt> ≥ 0 but <tt>stackFrame</tt> is <tt>null</tt>,
! * or <tt>stackDepth</tt> < 0 but <tt>stackFrame</tt> is not
! * <tt>null</tt>.
*/
public MonitorInfo(String className,
int identityHashCode,
int stackDepth,
StackTraceElement stackFrame) {
--- 44,65 ----
private int stackDepth;
private StackTraceElement stackFrame;
/**
! * Construct a {@code MonitorInfo} object.
*
* @param className the fully qualified name of the class of the lock object.
* @param identityHashCode the {@link System#identityHashCode
* identity hash code} of the lock object.
* @param stackDepth the depth in the stack trace where the object monitor
* was locked.
* @param stackFrame the stack frame that locked the object monitor.
* @throws IllegalArgumentException if
! * {@code stackDepth} ≥ 0 but {@code stackFrame} is {@code null},
! * or {@code stackDepth} < 0 but {@code stackFrame} is not
! * {@code null}.
*/
public MonitorInfo(String className,
int identityHashCode,
int stackDepth,
StackTraceElement stackFrame) {
*** 76,86 ****
this.stackFrame = stackFrame;
}
/**
* Returns the depth in the stack trace where the object monitor
! * was locked. The depth is the index to the <tt>StackTraceElement</tt>
* array returned in the {@link ThreadInfo#getStackTrace} method.
*
* @return the depth in the stack trace where the object monitor
* was locked, or a negative number if not available.
*/
--- 76,86 ----
this.stackFrame = stackFrame;
}
/**
* Returns the depth in the stack trace where the object monitor
! * was locked. The depth is the index to the {@code StackTraceElement}
* array returned in the {@link ThreadInfo#getStackTrace} method.
*
* @return the depth in the stack trace where the object monitor
* was locked, or a negative number if not available.
*/
*** 89,109 ****
}
/**
* Returns the stack frame that locked the object monitor.
*
! * @return <tt>StackTraceElement</tt> that locked the object monitor,
! * or <tt>null</tt> if not available.
*/
public StackTraceElement getLockedStackFrame() {
return stackFrame;
}
/**
! * Returns a <tt>MonitorInfo</tt> object represented by the
! * given <tt>CompositeData</tt>.
! * The given <tt>CompositeData</tt> must contain the following attributes
* as well as the attributes specified in the
* <a href="LockInfo.html#MappedType">
* mapped type</a> for the {@link LockInfo} class:
* <blockquote>
* <table border summary="The attributes and their types the given CompositeData contains">
--- 89,109 ----
}
/**
* Returns the stack frame that locked the object monitor.
*
! * @return {@code StackTraceElement} that locked the object monitor,
! * or {@code null} if not available.
*/
public StackTraceElement getLockedStackFrame() {
return stackFrame;
}
/**
! * Returns a {@code MonitorInfo} object represented by the
! * given {@code CompositeData}.
! * The given {@code CompositeData} must contain the following attributes
* as well as the attributes specified in the
* <a href="LockInfo.html#MappedType">
* mapped type</a> for the {@link LockInfo} class:
* <blockquote>
* <table border summary="The attributes and their types the given CompositeData contains">
*** 111,142 ****
* <th align=left>Attribute Name</th>
* <th align=left>Type</th>
* </tr>
* <tr>
* <td>lockedStackFrame</td>
! * <td><tt>CompositeData as specified in the
* <a href="ThreadInfo.html#StackTrace">stackTrace</a>
* attribute defined in the {@link ThreadInfo#from
* ThreadInfo.from} method.
! * </tt></td>
* </tr>
* <tr>
* <td>lockedStackDepth</td>
! * <td><tt>java.lang.Integer</tt></td>
* </tr>
* </table>
* </blockquote>
*
! * @param cd <tt>CompositeData</tt> representing a <tt>MonitorInfo</tt>
*
! * @throws IllegalArgumentException if <tt>cd</tt> does not
! * represent a <tt>MonitorInfo</tt> with the attributes described
* above.
! * @return a <tt>MonitorInfo</tt> object represented
! * by <tt>cd</tt> if <tt>cd</tt> is not <tt>null</tt>;
! * <tt>null</tt> otherwise.
*/
public static MonitorInfo from(CompositeData cd) {
if (cd == null) {
return null;
}
--- 111,142 ----
* <th align=left>Attribute Name</th>
* <th align=left>Type</th>
* </tr>
* <tr>
* <td>lockedStackFrame</td>
! * <td><code>CompositeData as specified in the
* <a href="ThreadInfo.html#StackTrace">stackTrace</a>
* attribute defined in the {@link ThreadInfo#from
* ThreadInfo.from} method.
! * </code></td>
* </tr>
* <tr>
* <td>lockedStackDepth</td>
! * <td>{@code java.lang.Integer}</td>
* </tr>
* </table>
* </blockquote>
*
! * @param cd {@code CompositeData} representing a {@code MonitorInfo}
*
! * @throws IllegalArgumentException if {@code cd} does not
! * represent a {@code MonitorInfo} with the attributes described
* above.
! * @return a {@code MonitorInfo} object represented
! * by {@code cd} if {@code cd} is not {@code null};
! * {@code null} otherwise.
*/
public static MonitorInfo from(CompositeData cd) {
if (cd == null) {
return null;
}
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