[Demonstration 1]

[Buggy Method]
@Override
public T remove() {
    return forget(delegate.remove());
}

[Buggy Hunk]
return forget(delegate.remove());

[Patch]
return delegate.remove();

[Demonstration 2]

[Buggy Method]
@LayoutlibDelegate
static /*package*/
void native_getValues(long native_object, float[] values) {
    Matrix_Delegate d = sManager.getDelegate(native_object);
    if (d == null) {
        return;
    }
    System.arraycopy(d.mValues, 0, d.mValues, 0, MATRIX_SIZE);
}

[Buggy Hunk]
System.arraycopy(d.mValues, 0, d.mValues, 0, MATRIX_SIZE);

[Patch]
System.arraycopy(d.mValues, 0, values, 0, MATRIX_SIZE);

[Demonstration 3]

[Buggy Method]
public void updateTabUnreadCounts() {
    if (mHasActiveVoicemailProvider) {
        mCallLogQueryHandler.fetchVoicemailUnreadCount();
    }
}

[Buggy Hunk]
if (mHasActiveVoicemailProvider) {

[Patch]
if (mHasActiveVoicemailProvider && mCallLogQueryHandler != null) {