With JEP 101: Generalized Target-Type Inference, this
final List bools = Arrays.asList(true,false, true);
final List string = boo
The example is accepted by every Eclipse release since the release of Java 8.
(Releases greater or equal P20140317-1600).
Seems like this issue is fixed now with the latest JDT snapshot implementing the desired proposal.
It just works fine under IntelliJ Idea 13 which seems ahead of Eclipse for Java8 support. So I guess you just have to wait until Eclipse will be able to compile this.