A bunch of small fixes have gone into this in the last few days and I'm feeling the imaging is once again stable. One of the last major issue was related to the installation of the JAI on a particular JDK. When installed the following native ImageReaders are installed.

com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageReaderCodecLib
com.sun.media.imageioimpl.plugins.jpeg.CLibJPEGImageReade

The problem with these readers is that they can't handle getting the image as a raster. The good news is that a call to canReadRaster() can test for and ignore these readers.

One of the cool side effects of moving to an more or less pure ImageIO implementation is that other JPEG deocders can be used. This should be useful for the Linux crowd. In my testing the twelvemonkeys API worked very well added to the class path. The following jars are required.

twelvemonkeys-common-image-3.0.jar
twelvemonkeys-common-io-3.0.jar
twelvemonkeys-common-lang-3.0.jar
twelvemonkeys-common-core3.0.jar
twelvemonkeys-common-jpeg-3.0.jar
twelvemonkeys-common-metadata-3.0.jar

Marking as fixed. QA has passed with no regressions and in genneral many improvements in the quality of the conversions.

I would suggest that in addition to targeting Java 7 that Java 8 should also be a target for this fix.

MOre comments on the forum, http://www.icesoft.org/JForum/posts/list/0/22297.page#78251

We have been hit by this issue, please have a look here: https://github.com/torakiki/sejda/issues/125

Some notes for http://www.icefaces.org/JForum/posts/list/19871.page
I have a windows setup very similar to above with regards to the ant and java version and could reproduce the error reported.

So I dug around a bit to try and figure out the problem. The missing classes in question are in the %JAVA_HOME%\jre\lib\rt.jar. So the question is why isn't ant or javac not picking up on the needed classes.

I ran a >ant -verbose clean build.jars > log.txt

In the logs shows that %JAVA_HOME%\jre\lib\rt.jar is on the classpath but afterwards there is a statement.

[javac] Using modern compiler
dropping C:\java\java\jdk1.7.0_02\jre\jre\lib\rt.jar from path as it doesn't exist

So I can't tell if this is an ant issue or a JDK issue but if I make sure the path above exists then everything compiles as expected (notice the .\jre\jre\ path).

If you are running on a 1.7 system then you might want to updated ./examples/etc/build-common.xml 's <javac /> statement to look as follows:

I have to do some testing still with openJDK to see if its a similar problem.

The library appear to be in release 1.7.0_02 of the Oracle JDK on Windows, so I'm not sure where it went in the pre-release versions. An alternative still needs to be found for people using OpenJDK. Right now I'm think we should use reflection to look for the sun API and provide some fall back code for either ImageIO or Apache Sanselan.