problems

//Fill buffers
{
        ByteBuffer bb = ByteBuffer.allocateDirect(4*(vertexPositionArray.length+vertexNormalArray.length));
        bb.order(ByteOrder.nativeOrder());
        buffer = bb.asFloatBuffer();
        buffer.put(vertexPositionArray);
        buffer.put(vertexNormalArray);
        buffer.rewind();
}
//fill vbos
{
        int buffers[] = new int[1];
        GLES20.glGenBuffers(1, buffers, 0);
        currentDatas.vboID = buffers[0];
        GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, currentDatas.vboID);
        {
                GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, (vertexPositionArray.length + vertexNormalArray.length) * 4, buffer, GLES20.GL_DYNAMIC_DRAW);
        }
        GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, 0);
}

//Set buffers' currentDatas length
{
        currentDatas.vertexPositionLength = vertexPositionArray.length;
        currentDatas.vertexNormalLength   = vertexNormalArray.length;
}