Compilation failed: error while loading AnnotatedElement, ConcurrentMap, CharSequence from Java 8 under Scala 2.10?

Question

I\'m using the following:

• Scala 2.10.4
• Scalatra 2.2.2
• sbt 0.13.0
• java 1.8.0
• casbah 2.7.2
• scalatra-sbt 0.3.5
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Answer 1

I am seeing the same issue with software requiring Scala 2.9.2+ and Java 1.7 running on Scala 2.10.4 and Java 1.8. Changed to Java 7 via sudo update-alternatives --config java