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
<

Answer 1

I hope a stable version of Scala will help you, Try 2.10.x with Java 1.7.x versions for better performance.

I mean it worked for me also in the same.

Answer 2

In my company we had this problem with CharSequence. This is due to Scala 2.10.x does not work with Java 8. This was described in Scalas mailinglist. Switch back to Java 7.

Answer 3

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

Answer 4

I have a similar problem on Java 1.8.0 working with Scala 2.10.4 and sbt 0.12.4. But when upgrading to sbt 0.13.7, the problem is solved.

Answer 5

Switching to Scala 2.10.4 solved the problem for me.

Answer 6

I had the same problem. However by switching to Java 7 my problem is resolved. So now this configuration works for me:

sbt 0.13.8
scala 2.11.7
java 7