When working with the following Planner project:
https://github.com/triceo/mista13

Run the Mista2013BenchmarkApp with argument "constructionHeuristics" to launch a benchmark that only validates various CH (BEST_FIT, FIRST_FIT etc.)

This benchmark works alright with 6.0.0.Beta5, but throws the following exception in 6.0.0-SNAPSHOT (to become CR1). I assume that introduction of placers must have broken something.

Exception in thread "main" java.lang.IllegalArgumentException: The selector (FromEntityPropertyValueSelector(executionMode)) does not support the cacheType (PHASE).
at org.optaplanner.core.impl.heuristic.selector.value.FromEntityPropertyValueSelector.<init>(FromEntityPropertyValueSelector.java:44)