Merge "Remove minimum heap size test now that the underlying interface is gone." into honeycomb

        return new WeakReference<Object>(new Object());

    }

    /**

     * Allocates the specified number of bytes. This is done in a separate method

     * to ensure that the Object's address isn't sitting in a stale local register.

     */

    private void allocateMemory(int size) {

        byte[] b = new byte[size];

    }

    @MediumTest

    public void testMinimumHeapSize() throws Exception {

        VMRuntime r = VMRuntime.getRuntime();

        final boolean RUN_FLAKY = false;

        long origSize = r.getMinimumHeapSize();

        if (RUN_FLAKY) {

            /* Check that the default value is zero.  This will break if anyone

             * in this process sets the minimum heap size to a positive value

             * before calling this test.

             */

            assertTrue(origSize == 0);

        }

        long size = 4 * 1024 * 1024;

        long oldSize = r.setMinimumHeapSize(size);

        assertTrue(oldSize == origSize);

        long newSize = r.getMinimumHeapSize();

        /* This will fail if the maximum heap size (-Xmx) is smaller than 4MB.

         */

        assertTrue(newSize == size);

        /* Make sure that getting the size doesn't change anything.

         */

        newSize = r.getMinimumHeapSize();

        assertTrue(newSize == size);

        /* This test is flaky; if the heap is already large and fragmented,

         * it can fail.  It can also fail if another thread causes a GC

         * at the wrong time.

         */

        if (RUN_FLAKY) {

            /* Increase the minimum size, allocate a big object, and make sure that

             * a GC didn't happen.

             */

            WeakReference ref = newRef();

            assertNotNull(ref.get());

            r.setMinimumHeapSize(8 * 1024 * 1024);

            allocateMemory(4 * 1024 * 1024);

            /* If a GC happened, this reference will be null.

             */

            assertNotNull(ref.get());

        }

        /* Restore the original setting.

         */

        r.setMinimumHeapSize(origSize);

        newSize = r.getMinimumHeapSize();

        assertTrue(newSize == origSize);

        /* Clean up any large stuff we've allocated,

         * and re-establish the normal utilization ratio.

         */

        Runtime.getRuntime().gc();

    }

    private static void makeRefs(Object objects[], SoftReference<Object> refs[]) {

        for (int i = 0; i < objects.length; i++) {

            objects[i] = (Object) new byte[8 * 1024];