InferStrict.java

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 /*
  * @test
  * @bug 8078093
  * @summary Exponential performance regression Java 8 compiler compared to Java 7 compiler
  * @compile InferStrict.java
  */
import java.util.HashSet;
import java.util.Set;

class InferStrict {
    public <T> Set<T> compute(Set<T> t) { return t; }
    public <T> T join(Set<T> t1, Set<T> t2) { return null; }
    public <T extends InferStrict> T compute() { return null; }
    public void test() {
        join(
            compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(new HashSet<>()))))))))))))))))),
            compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(compute(new HashSet<String>())))))))))))))))))
        ).length();
     }
}