title: JNI problem on OSX
body: <p>I'm running into problems using AWT classes on OSX (10.5.8) with Java 6 (1.6.0_17 JVM: 14.3-b01-101).
  Trying to load java.awt.Dimension the code just freezes, this happens in Eclipse or from the command line. Anyone experiencing same problems ?
  The class is used by JAI in the following code: </p>
  
  <pre><code>public static byte[] resizeAsJPG(byte[] imageContent, double scale, float outputQuality) throws IllegalArgumentException,
    ImageOperationException {
  if (scale &lt;= 0) {
    throw new IllegalArgumentException("scale must be a positive number");
  }
  if (outputQuality &lt;= 0 || outputQuality &gt; 1.0F) {
    throw new IllegalArgumentException("outputQuality must be between 0 and 1");
  }
  try {
    // Fetch input image to seekable stream
    RenderedOp originalImage = getRenderedOp(imageContent);
    ((OpImage) originalImage.getRendering()).setTileCache(null);
  
    // Set scale parameters
    ParameterBlock saclingParams = new ParameterBlock();
    saclingParams.addSource(originalImage); // The source image
    saclingParams.add(scale); // The xScale
    saclingParams.add(scale); // The yScale
    saclingParams.add(0.0); // The x translation
    saclingParams.add(0.0); // The y translation
  
    // RenderingHints renderingHints = new RenderingHints(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    Map&lt;RenderingHints.Key, Object&gt; renderingHints = new HashMap&lt;RenderingHints.Key, Object&gt;();
    renderingHints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    renderingHints.put(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
    renderingHints.put(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
    renderingHints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  
    // Scale using sub-sampling average which provides much better quality than bicubic interpolation
    RenderedOp scaledImage = JAI.create("SubsampleAverage", saclingParams, new RenderingHints(renderingHints));
  
    // Encode scaled image as JPEG
    JPEGEncodeParam encodeParam = new JPEGEncodeParam();
    encodeParam.setQuality(outputQuality);
  
    // Since we scale height and width (don't take into account the quality)
    int outputSizeEstimate = (int) (imageContent.length * scale * scale);
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(outputSizeEstimate);
    ImageEncoder encoder = ImageCodec.createImageEncoder("JPEG", outputStream, encodeParam);
    encoder.encode(scaledImage);
    return outputStream.toByteArray();
  } catch (Exception e) {
    throw new ImageOperationException(e.getMessage(), e);
  }
  </code></pre>
  
  <p>}</p>