[Htmlunit-user] Issues with HtmlImage.getHeight() on Mac

[Lidia M. <li...@su...>]

Hello

I'm facing an issue when executing HtmlImage.getHeight() on Mac.  I'm 
using this API in order to test image size.  The test fails with the 
following exception on Mac:

[java] Exception in thread "main" java.lang.InternalError: Can't connect 
to window server - not enough permissions.
   [java]     at java.lang.ClassLoader$NativeLibrary.load(Native Method)
   [java]     at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1822)
   [java]     at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1723)
   [java]     at java.lang.Runtime.loadLibrary0(Runtime.java:823)
   [java]     at java.lang.System.loadLibrary(System.java:1030)
   [java]     at 
sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:50)
   [java]     at java.security.AccessController.doPrivileged(Native Method)
   [java]     at sun.java2d.Disposer.<clinit>(Disposer.java:40)
   [java]     at 
javax.imageio.stream.FileCacheImageInputStream.<init>(FileCacheImageInputStream.java:88) 

   [java]     at 
com.sun.imageio.spi.InputStreamImageInputStreamSpi.createInputStreamInstance(InputStreamImageInputStreamSpi.java:51) 

   [java]     at 
javax.imageio.ImageIO.createImageInputStream(ImageIO.java:331)
   [java]     at 
com.gargoylesoftware.htmlunit.html.HtmlImage.readImageIfNeeded(HtmlImage.java:362) 

   [java]     at 
com.gargoylesoftware.htmlunit.html.HtmlImage.getHeight(HtmlImage.java:291)
   [java]     at 
com.sun.asqe.jsf.jsf2_0.resource.caching.VerifyApplication.main(VerifyApplication.java:153) 

   [java] Java Result: 1

I've searched online and the solution seemed to be adding java command 
line option  "-Djava.awt.headless=true".  Thus I added the following 
system property to the Mac execution:

      <java 
classname="com.sun.asqe.jsf.jsf2_0.resource.caching.DeveloperStageCa
chingTests" fork="yes">
        <classpath path="${runtime-classpath}"/>
        <sysproperty key="java.awt.headless" value="${run-headless}"/>
        <arg value="${http.host}"/>
        <arg value="${http.port}"/>

However, I still get the same exception.  Is there a way around it?  The 
tests work fine on other unix platforms.

Thanks
Lidia