Are direct buffers in Java initialized to a default value like arrays?

When I initialize an array in Java like:

float[] array = new float[1000];

all elements are initialized to 0. Is that also the case when I allocate a direct buffer like this:

FloatBuffer buffer = ByteBuffer.allocateDirect(4*1000).asFloatBuffer();

? I always seem to get only zeroes, but perhaps it's implementation dependent...