Thank you,
I confirm that (apart from setting JAVA_HOME) updating alternatives in Ubuntu 14.04 LTS with

update-alternatives --install /usr/bin/java java /usr/local/jdk1.8.0_45/bin/java 100
(change above path)

and setting with

update-alternatives --config java

solves the problem.

Anyway, this workaround is not the best, because I need multiple jdk versions on the same server. So I'll wait your new release :-)

Thank you!

romano

Same for me with Oracle jdk 1.8 (64bit):

romano@romano-Vostro-3350:/usr/local/mycollab/bin$ ./startup.sh
/usr/local/mycollab
Log /usr/local/mycollab/logs/mycollab.out
Using MYCOLLAB_HOME: /usr/local/mycollab
Using JAVA_HOME: /usr/local/jdk1.8.0_45
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/eclipse/jetty/util/component/LifeCycle$Listener : Unsupported major.minor version 52.0


Any idea?

thanks

romano