FULL PRODUCT VERSION :
$ ~/bin/jdk1.8.0_112/bin/javac -version
javac 1.8.0_112

$ ~/bin/jdk1.8.0_112/bin/java -version
java version "1.8.0_112"
Java(TM) SE Runtime Environment (build 1.8.0_112-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.112-b15, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
 3.13.0-100-generic #147-Ubuntu SMP Tue Oct 18 16:48:51 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
    private static void test() {
        Stream.empty()
            .filter(o -> o instanceof List)
            .map(o -> (List) o)
            .flatMap(l -> l.stream())
            .filter(o -> o instanceof String).<String>map(o -> (String) o)
            .forEach((String s) -> someString(s));
    }

    private static void someString(String s) {
        // do nothing
    }

The code above compiles with the eclipse compiler, but not the jdk compiler.

The following compiles:

    private static void test() {
        Stream.empty()
            .filter(o -> o instanceof String).<String>map(o -> (String) o)
            .forEach((String s) -> someString(s));
    }


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
$ java -jar ~/bin/eclipse-mars/plugins/org.eclipse.jdt.core_3.11.2.v20160128-0629.jar -8 ./Test.java # No Errors

$ ~/bin/jdk1.8.0_112/bin/javac -Xdiags:verbose ./Test.java
./Test.java:15: error: method forEach in interface Stream<T> cannot be applied to given types;
            .forEach((String s) -> someString(s));
            ^
  required: Consumer
  found: (String s)[...]ng(s)
  reason: argument mismatch; incompatible parameter types in lambda expression
  where T is a type-variable:
    T extends Object declared in interface Stream
1 error




ERROR MESSAGES/STACK TRACES THAT OCCUR :
./Test.java:15: error: method forEach in interface Stream<T> cannot be applied to given types;
            .forEach((String s) -> someString(s));
            ^
  required: Consumer
  found: (String s)[...]ng(s)
  reason: argument mismatch; incompatible parameter types in lambda expression
  where T is a type-variable:
    T extends Object declared in interface Stream
1 error

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.List;


public class Test {
    @SuppressWarnings({ "unchecked", "rawtypes" })
    private static void test() {
        Stream.empty()
            .filter(o -> o instanceof List)
            .map(o -> (List) o)
            .flatMap(l -> l.stream())
            .filter(o -> o instanceof String).<String>map(o -> (String) o)
            .forEach((String s) -> someString(s));
    }

    private static void someString(String s) {

    }
    
    public static void main(String[] args) {
        test();
    }
}

---------- END SOURCE ----------