FULL PRODUCT VERSION :
java version "1.8.0_11"
Java(TM) SE Runtime Environment (build 1.8.0_11-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.11-b03, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
It might be related to JDK-8042741, however my problem still exists in jdk8u20 EA but exception is different.

ADDITIONAL REGRESSION INFORMATION:
The problem was first observed with EA builds of Java 8 (before official release of jdk8).

I did not have clue what part of code it was but now I know.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile attached code:

javac TooMuchForACompiler.java

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Code compiles successfully (or produces reasonable error message).
ACTUAL -
NullPointerException in a compiler

ERROR MESSAGES/STACK TRACES THAT OCCUR :


Error message for jdk8u11 (official release)


java.lang.NullPointerException
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.trackable(Flow.java:1476)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.visitVarDef(Flow.java:1801)
        at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitVarDef(Flow.java:2516)
        at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:846)
        at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
        at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:389)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.scan(Flow.java:1367)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.visitLambda(Flow.java:2225)


Error message for jdk8u20 EA:

java.lang.NullPointerException
        at com.sun.tools.javac.code.Scope.includes(Scope.java:296)
        at com.sun.tools.javac.comp.Flow$1.trackable(Flow.java:247)
        at com.sun.tools.javac.comp.Flow$AbstractAssignAnalyzer.visitVarDef(Flow.java:1832)
        at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitVarDef(Flow.java:2569)



REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.function.Consumer;

public class TooMuchForACompiler {

    public interface Supplier<T, E extends Exception> {
        T get() throws E;
    }

    public static <T, E extends Exception> T produceAndConsume(Supplier<T, E> supplier, Consumer<E> handler) {
        try {
            return supplier.get();
        } catch (Exception e) {
            handler.accept((E) e);

        }
        return null;
    }

    public static void main(String... args) {
        produceAndConsume(() -> -1, i -> System.out.println(i.getMessage()));
    }

}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Assign one of lambdas to a variable.

 public static void main(String... args) {
        Supplier<Integer, RuntimeException> supplier = () -> -1;
        produceAndConsume(supplier, i -> System.out.println(i.getMessage()));
    }