Modifier and Type	Class and Description
private static class	GC.Daemon
private static class	GC.LatencyLock
public static class	GC.LatencyRequest Represents an active garbage-collection latency request.

Modifier and Type	Field and Description
private static Thread	daemon
private static long	latencyTarget
private static Object	lock
private static final long	NO_TARGET

Access	Constructor and Description
private	GC()

Modifier and Type	Method and Description
public static long	currentLatencyTarget() Returns the current smallest garbage-collection latency request, or zero if there are no active requests.
public static native long	maxObjectInspectionAge() Returns the maximum object-inspection age, which is the number of real-time milliseconds that have elapsed since the least-recently-inspected heap object was last inspected by the garbage collector.
public static GC.LatencyRequest	requestLatency(long The requested latency latency) Makes a new request for a garbage-collection latency of the given number of real-time milliseconds.
private static void	setLatencyTarget(long ms)

daemon	back to summary
private static Thread daemon

latencyTarget	back to summary
private static long latencyTarget

lock	back to summary
private static Object lock

NO_TARGET	back to summary
private static final long NO_TARGET

GC	back to summary
private GC()

Method Detail

currentLatencyTarget	back to summary
public static long currentLatencyTarget() Returns the current smallest garbage-collection latency request, or zero if there are no active requests.

maxObjectInspectionAge	back to summary
public static native long maxObjectInspectionAge() Returns the maximum object-inspection age, which is the number of real-time milliseconds that have elapsed since the least-recently-inspected heap object was last inspected by the garbage collector. For simple stop-the-world collectors this value is just the time since the most recent collection. For generational collectors it is the time since the oldest generation was most recently collected. Other collectors are free to return a pessimistic estimate of the elapsed time, or simply the time since the last full collection was performed. Note that in the presence of reference objects, a given object that is no longer strongly reachable may have to be inspected multiple times before it can be reclaimed.

maxObjectInspectionAge

back to summary

public static native long maxObjectInspectionAge()

Returns the maximum object-inspection age, which is the number of real-time milliseconds that have elapsed since the least-recently-inspected heap object was last inspected by the garbage collector.

For simple stop-the-world collectors this value is just the time since the most recent collection. For generational collectors it is the time since the oldest generation was most recently collected. Other collectors are free to return a pessimistic estimate of the elapsed time, or simply the time since the last full collection was performed.

Note that in the presence of reference objects, a given object that is no longer strongly reachable may have to be inspected multiple times before it can be reclaimed.

requestLatency back to summary

requestLatency	back to summary
public static GC.LatencyRequest requestLatency(long latency) Makes a new request for a garbage-collection latency of the given number of real-time milliseconds. A low-priority daemon thread makes a best effort to ensure that the maximum object-inspection age never exceeds the smallest of the currently active requests. Parameters latency:long The requested latency Exceptions IllegalArgumentException: If the given `latency` is non-positive

public static GC.LatencyRequest requestLatency(long latency)

Makes a new request for a garbage-collection latency of the given number of real-time milliseconds. A low-priority daemon thread makes a best effort to ensure that the maximum object-inspection age never exceeds the smallest of the currently active requests.

Parameters

latency:long: The requested latency

Exceptions

IllegalArgumentException:: If the given latency is non-positive

setLatencyTarget	back to summary
private static void setLatencyTarget(long ms)

sun.rmi.transport back to summary

private Class GC.Daemon

Class Inheritance

extends Object
implements Runnable

java.lang.Object
sun.rmi.transport.GC.Daemon

All Implemented Interfaces

java.lang.Runnable

Constructor Summary

Access	Constructor and Description
private	Daemon()

Method Summary

Modifier and Type	Method and Description
public static void	create()
public void	run() Implements java.lang.Runnable.run. Runs this operation.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Constructor Detail

Daemon	back to summary
private Daemon()

Method Detail

create	back to summary
public static void create()

run	back to summary
public void run() Implements java.lang.Runnable.run. Doc from java.lang.Runnable.run. Runs this operation. Annotations @Override

run

back to summary

public void run()

Implements java.lang.Runnable.run.

Doc from java.lang.Runnable.run.

Runs this operation.

Annotations

@Override

sun.rmi.transport back to summary

private Class GC.LatencyLock

Class Inheritance

extends Object

java.lang.Object
sun.rmi.transport.GC.LatencyLock

Constructor Summary

Access	Constructor and Description
private	LatencyLock()

Method Summary

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Constructor Detail

LatencyLock	back to summary
private LatencyLock()

sun.rmi.transport back to summary

public Class GC.LatencyRequest

Class Inheritance

extends Object
implements Comparable<GC.LatencyRequest>

java.lang.Object
sun.rmi.transport.GC.LatencyRequest

All Implemented Interfaces

java.lang.Comparable

Represents an active garbage-collection latency request. Instances of this class are created by the requestLatency method. Given a request, the only interesting operation is that of cancellation.

Field Summary

Modifier and Type	Field and Description
private static long	counter
private long	id
private long	latency
private static SortedSet<GC.LatencyRequest>	requests

Constructor Summary

Access	Constructor and Description
private	LatencyRequest(long ms)

Method Summary

Modifier and Type	Method and Description
private static void	adjustLatencyIfNeeded()
public void	cancel() Cancels this latency request.
public int	compareTo(GC.LatencyRequest r) Implements java.lang.Comparable.compareTo. Compares this object with the specified object for order.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll wait wait wait

Field Detail

counter	back to summary
private static long counter

id	back to summary
private long id

latency	back to summary
private long latency

requests	back to summary
private static SortedSet<GC.LatencyRequest> requests

Constructor Detail

LatencyRequest	back to summary
private LatencyRequest(long ms)

Method Detail

adjustLatencyIfNeeded	back to summary
private static void adjustLatencyIfNeeded()

cancel	back to summary
public void cancel() Cancels this latency request. Exceptions IllegalStateException: If this request has already been cancelled

cancel

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public void cancel()

Cancels this latency request.

Exceptions

IllegalStateException:: If this request has already been cancelled

compareTo back to summary

compareTo	back to summary
public int compareTo(GC.LatencyRequest r) Implements java.lang.Comparable.compareTo. Doc from java.lang.Comparable.compareTo. Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object. The implementor must ensure `signum(x.compareTo(y)) == -signum(y.compareTo(x))` for all `x` and `y`. (This implies that `x.compareTo(y)` must throw an exception if and only if `y.compareTo(x)` throws an exception.) The implementor must also ensure that the relation is transitive: `(x.compareTo(y) > 0 && y.compareTo(z) > 0)` implies `x.compareTo(z) > 0`. Finally, the implementor must ensure that `x.compareTo(y)==0` implies that `signum(x.compareTo(z)) == signum(y.compareTo(z))`, for all `z`.

public int compareTo(GC.LatencyRequest r)

Implements java.lang.Comparable.compareTo.

Doc from java.lang.Comparable.compareTo.

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

The implementor must ensure signum(x.compareTo(y)) == -signum(y.compareTo(x)) for all x and y. (This implies that x.compareTo(y) must throw an exception if and only if y.compareTo(x) throws an exception.)

The implementor must also ensure that the relation is transitive: (x.compareTo(y) > 0 && y.compareTo(z) > 0) implies x.compareTo(z) > 0.

Finally, the implementor must ensure that x.compareTo(y)==0 implies that signum(x.compareTo(z)) == signum(y.compareTo(z)), for all z.

toString back to summary

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Doc from java.lang.Object.toString. Returns a string representation of the object. Satisfying this method's contract implies a non-`null` result must be returned.

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

pack-priv Class GC

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private Class GC.Daemon

Constructor Summary

Method Summary

Constructor Detail

Method Detail

private Class GC.LatencyLock

Constructor Summary

Method Summary

Constructor Detail

public Class GC.LatencyRequest

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail