Examples with WeakReference java.lang.ref.WeakReference used on opensource projects

Example 1 with WeakReference

use of java.lang.ref.WeakReference in project groovy by apache.

the class ClassInfoLeakStressTest method testLeak.

@Test
public void testLeak() {
    assertFalse(Boolean.getBoolean("groovy.use.classvalue"));
    for (int i = 0; i < NUM_OBJECTS; i++) {
        GroovyClassLoader gcl = new GroovyClassLoader();
        Class scriptClass = gcl.parseClass("int myvar = " + i);
        ClassInfo ci = ClassInfo.getClassInfo(scriptClass);
        Reference<ClassLoader> classLoaderRef = new WeakReference<ClassLoader>(gcl, classLoaderQueue);
        Reference<Class<?>> classRef = new WeakReference<Class<?>>(scriptClass, classQueue);
        Reference<ClassInfo> classInfoRef = new WeakReference<ClassInfo>(ci, classInfoQueue);
        refList.add(classLoaderRef);
        refList.add(classRef);
        refList.add(classInfoRef);
        gcl = null;
        scriptClass = null;
        ci = null;
        GCUtils.gc();
    }
    // Add new class to help evict the last collected entry
    GroovyClassLoader gcl = new GroovyClassLoader();
    Class scriptClass = gcl.parseClass("int myvar = 7777");
    ClassInfo ci = ClassInfo.getClassInfo(scriptClass);
    GCUtils.gc();
    // All objects should have been collected
    assertEquals("GroovyClassLoaders not collected by GC", NUM_OBJECTS, queueSize(classLoaderQueue));
    assertEquals("Script Classes not collected by GC", NUM_OBJECTS, queueSize(classQueue));
    int ciSize = queueSize(classInfoQueue);
    assertEquals("ClassInfo objects [" + ciSize + "] collected by GC, expected [" + NUM_OBJECTS + "]", NUM_OBJECTS, ciSize);
}

Example 2 with WeakReference

use of java.lang.ref.WeakReference in project cglib by cglib.

the class Enhancer method wrapCachedClass.

@Override
protected Object wrapCachedClass(Class klass) {
    Class[] argumentTypes = this.argumentTypes;
    if (argumentTypes == null) {
        argumentTypes = Constants.EMPTY_CLASS_ARRAY;
    }
    EnhancerFactoryData factoryData = new EnhancerFactoryData(klass, argumentTypes, classOnly);
    Field factoryDataField = null;
    try {
        // The subsequent dance is performed just once for each class,
        // so it does not matter much how fast it goes
        factoryDataField = klass.getField(FACTORY_DATA_FIELD);
        factoryDataField.set(null, factoryData);
        Field callbackFilterField = klass.getDeclaredField(CALLBACK_FILTER_FIELD);
        callbackFilterField.setAccessible(true);
        callbackFilterField.set(null, this.filter);
    } catch (NoSuchFieldException e) {
        throw new CodeGenerationException(e);
    } catch (IllegalAccessException e) {
        throw new CodeGenerationException(e);
    }
    return new WeakReference<EnhancerFactoryData>(factoryData);
}

Example 3 with WeakReference

use of java.lang.ref.WeakReference in project Meizhi by drakeet.

the class SmoothAppBarLayout method removeOnOffsetSyncedListener.

public void removeOnOffsetSyncedListener(OnOffsetSyncedListener listener) {
    Iterator i = mOffsetSyncedListeners.iterator();
    while (true) {
        OnOffsetSyncedListener item;
        do {
            if (!i.hasNext()) {
                return;
            }
            WeakReference ref = (WeakReference) i.next();
            item = (OnOffsetSyncedListener) ref.get();
        } while (item != listener && item != null);
        i.remove();
    }
}

Example 4 with WeakReference

use of java.lang.ref.WeakReference in project Meizhi by drakeet.

the class SmoothAppBarLayout method addOnOffsetSyncedListener.

public void addOnOffsetSyncedListener(OnOffsetSyncedListener listener) {
    int i = 0;
    for (int z = this.mOffsetSyncedListeners.size(); i < z; ++i) {
        WeakReference ref = (WeakReference) this.mOffsetSyncedListeners.get(i);
        if (ref != null && ref.get() == listener) {
            return;
        }
    }
    this.mOffsetSyncedListeners.add(new WeakReference(listener));
}

Example 5 with WeakReference

use of java.lang.ref.WeakReference in project Meizhi by drakeet.

the class SmoothAppBarLayout method syncOffset.

public void syncOffset() {
    int i = 0;
    for (int z = mOffsetSyncedListeners.size(); i < z; ++i) {
        WeakReference ref = (WeakReference) mOffsetSyncedListeners.get(i);
        OnOffsetSyncedListener listener = ref != null ? (OnOffsetSyncedListener) ref.get() : null;
        if (listener != null) {
            listener.onOffsetSynced(this);
        }
    }
}