[Solved] Thumbnail creation issue with images

Hi,
I am having issues with thumbnail creation. I have Serviio 1.5 installed on Ubuntu 14.10. Java version is javac 1.8.0_40-internal from openjdk-8 package.

When I am adding camera photo (.jpg) to library, serviio has resize issues. (See log). same issue if I try to create thumbnails from .mpg files.
The original photo can be viewed from Samsung TV.

I was reading about similar issue which was caused by lack of memory, from this forum, and I increased max memory allocation to -Xmx1024M with no help just in case without effect.

I'm a but unsure where I should go from here to investigate and fix the issue.

  Code:

WARN  [CoverImageService] Cannot convert/resize art to JPG. Message: Could not initialize class com.sun.imageio.plugins.jpeg.JPEGImageReader
java.lang.NoClassDefFoundError: Could not initialize class com.sun.imageio.plugins.jpeg.JPEGImageReader

  Code:

WARN  [CoverImageService] Cannot convert/resize art to JPG. Message: null
java.lang.NullPointerException

Thanks

I ran into the same problem, a little googling seems to indicate the imageio.plugins in openjdk-8 are broken. I removed openjdk-8 and installed Oracle Java 8 from
here http://www.webupd8.org/2012/09/install-oracle-java-8-in-ubuntu-via-ppa.html . That fixed the thumbnail problem and so far does not seem to have
caused any other problems

This did the trick.
Now I'm having thumbnails for pictures and videos!
Thanks!