EDIT

There were and still are several problems with the building the taxeditor. Some of them have to do with the switch to Java 8
This ticket should be used to solve them and also collect the information what has been done so far.

Missing Constraint: Bundle-RequiredExecutionEnvironment: JavaSE-1.8
It seems like this happens because we still build against Eclipse indigo and its osgi plugin cannot handle Java 8 (http://stackoverflow.com/questions/24669940/java-8-missing-required-capability-require-capability-osgi-ee-filter-osg)

Scenarios I tried:

• setting the Bundle-RequiredExecutionEnvironment to 1.7 ** fixes the problem but we already make use of Java 8 syntax which then causes the maven compiler to fail.
• Completely deleting Bundle-RequiredExecutionEnvironment ** lets the compiler fail due to Java 1.6 syntax like e.g. <>
• only for Eclipse workspace: Removing the old (indigo) osgi plugin from the target platform lets the editor start from the workspace with Bundle-RequiredExecutionEnvironment 1.8

A zip file cannot include itself
This happened when increasing the tycho version to 1.0.0

• SOLVED: by deleting output.. = bin/ from build.properties

Missing requirement ... org.eclipse.objectteams.otdt.core.patch.feature.group

• SOLVED: by adding the feature org.eclipse.jdt instead of the plugins (see https://dev.eclipse.org/mhonarc/lists/tycho-user/msg03128.html)

Missing requirement (general)

• Use features instead of plugins