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

Example 16 with SoftReference

use of java.lang.ref.SoftReference in project robovm by robovm.

the class SoftReferenceTest method test_ConstructorLjava_lang_Object.

/**
     * java.lang.ref.SoftReference#SoftReference(java.lang.Object)
     */
public void test_ConstructorLjava_lang_Object() {
    bool = new Boolean(true);
    try {
        SoftReference sr = new SoftReference(bool);
        assertTrue("Initialization failed.", ((Boolean) sr.get()).booleanValue());
    } catch (Exception e) {
        fail("Exception during test : " + e.getMessage());
    }
}

Example 17 with SoftReference

use of java.lang.ref.SoftReference in project robovm by robovm.

the class SoftReferenceTest method test_get.

/**
     * java.lang.ref.SoftReference#get()
     */
public void test_get() {
    bool = new Boolean(false);
    SoftReference sr = new SoftReference(bool);
    assertTrue("Same object not returned.", bool == sr.get());
}

Example 18 with SoftReference

use of java.lang.ref.SoftReference in project robovm by robovm.

the class SoftReferenceTest method test_get_SoftReference.

@SideEffect("Causes OutOfMemoryError to test finalization")
public void test_get_SoftReference() {
    class TestObject {

        public boolean finalized;

        public TestObject() {
            finalized = false;
        }

        protected void finalize() {
            finalized = true;
        }
    }
    final ReferenceQueue rq = new ReferenceQueue();
    class TestThread extends Thread {

        public void run() {
            Object testObj = new TestObject();
            r = new SoftReference(testObj, rq);
        }
    }
    Reference ref;
    try {
        TestThread t = new TestThread();
        t.start();
        t.join();
        Vector<StringBuffer> v = new Vector<StringBuffer>();
        try {
            while (true) {
                v.add(new StringBuffer(10000));
            }
        } catch (OutOfMemoryError ofme) {
            v = null;
        }
    } catch (InterruptedException e) {
        fail("InterruptedException : " + e.getMessage());
    }
    assertNull("get() should return null " + "if OutOfMemoryError is thrown.", r.get());
    try {
        TestThread t = new TestThread();
        t.start();
        t.join();
        FinalizationTester.induceFinalization();
        ref = rq.poll();
        assertNotNull("Object not garbage collected.", ref);
        assertNull("Object is not null.", ref.get());
        assertNotNull("Object could not be reclaimed.", r.get());
    } catch (Exception e) {
        fail("Exception : " + e.getMessage());
    }
}

Example 19 with SoftReference

use of java.lang.ref.SoftReference in project robovm by robovm.

the class ReferenceQueueTest method test_poll.

/**
     * java.lang.ref.ReferenceQueue#poll()
     */
public void test_poll() {
    // store in a static so it won't be gc'ed because the jit
    // optimized it out
    b = new Boolean(true);
    Object obj = new Object();
    String str = "Test";
    SoftReference sr = new SoftReference(b, rq);
    WeakReference wr = new WeakReference(obj, rq);
    PhantomReference pr = new PhantomReference(str, rq);
    assertNull(rq.poll());
    sr.enqueue();
    wr.enqueue();
    pr.enqueue();
    try {
        assertNull("Remove failed.", rq.poll().get());
    } catch (Exception e) {
        fail("Exception during the test : " + e.getMessage());
    }
    try {
        assertEquals("Remove failed.", obj, (rq.poll().get()));
    } catch (Exception e) {
        fail("Exception during the test : " + e.getMessage());
    }
    try {
        assertTrue("Remove failed.", ((Boolean) rq.poll().get()).booleanValue());
    } catch (Exception e) {
        fail("Exception during the test : " + e.getMessage());
    }
    assertNull(rq.poll());
    sr.enqueue();
    wr.enqueue();
    FinalizationTester.induceFinalization();
    assertNull(rq.poll());
}

Example 20 with SoftReference

use of java.lang.ref.SoftReference in project ceylon-compiler by ceylon.

the class ZipFileIndex method inflate.

private int inflate(byte[] src, byte[] dest) {
    Inflater inflater = (inflaterRef == null ? null : inflaterRef.get());
    // construct the inflater object or reuse an existing one
    if (inflater == null)
        inflaterRef = new SoftReference<Inflater>(inflater = new Inflater(true));
    inflater.reset();
    inflater.setInput(src);
    try {
        return inflater.inflate(dest);
    } catch (DataFormatException ex) {
        return -1;
    }
}