com.google.appinventor.components.runtime.util

Class MemoryLeakUtil

java.lang.Object

com.google.appinventor.components.runtime.util.MemoryLeakUtil

public class MemoryLeakUtil
extends java.lang.Object

MemoryLeakUtil provides some useful methods for detecting memory leaks.

Method Summary

Methods

Modifier and Type	Method and Description
static void	checkAllTrackedObjects(boolean verbose, boolean stopTrackingCollectedObjects) Checks whether all tracked objects have been garbage collected, logging summary information including how many have been collected and how many have not.
static boolean	isTrackedObjectCollected(java.lang.String key, boolean stopTrackingIfCollected) Checks whether a particular tracked object has been garbage collected.
static java.lang.String	trackObject(java.lang.String tag, java.lang.Object object) Tracks the given Object by saving a WeakReference to it so that we can check later if it has been garbage collected.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

trackObject

public static java.lang.String trackObject(java.lang.String tag,
                           java.lang.Object object)

Tracks the given Object by saving a WeakReference to it so that we can check later if it has been garbage collected.

Parameters:

tag - the tag for the Object

object - the Object to track

Returns:

the key that is used to track the Object

isTrackedObjectCollected

public static boolean isTrackedObjectCollected(java.lang.String key,
                               boolean stopTrackingIfCollected)

Checks whether a particular tracked object has been garbage collected.

Parameters:

key - a key returned from trackObject(java.lang.String, java.lang.Object)

stopTrackingIfCollected - whether to stop tracking the object if it has been garbage collected

Returns:

true if the tracked object has been collected; false otherwise

Throws:

java.lang.IllegalArgumentException - if the key is not valid

checkAllTrackedObjects

public static void checkAllTrackedObjects(boolean verbose,
                          boolean stopTrackingCollectedObjects)

Checks whether all tracked objects have been garbage collected, logging summary information including how many have been collected and how many have not. Optionally, it can log details showing which objects have been garbage collected and which have not.

Parameters:

verbose - whether to log details about each tracked object

stopTrackingCollectedObjects - whether to stop tracking objects that have been garbage collected