FULL PRODUCT VERSION :
java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b25)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
When providing a lambda function into a constructor that has a custom consumer interface as a parameter, compiler throws an assertion error.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile provided source code

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Code compiles
ACTUAL -
Compiler throws an assertion error

ERROR MESSAGES/STACK TRACES THAT OCCUR :
An exception has occurred in the compiler (1.8.0_40). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.AssertionError
        at com.sun.tools.javac.util.Assert.error(Assert.java:126)
        at com.sun.tools.javac.util.Assert.check(Assert.java:45)
        at com.sun.tools.javac.code.Types.functionalInterfaceBridges(Types.java:656)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor$TranslationContext.<init>(LambdaToMethod.java:1692)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor$LambdaTranslationContext.<init>(LambdaToMethod.java:1775)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.analyzeLambda(LambdaToMethod.java:1275)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.visitLambda(LambdaToMethod.java:1260)
        at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1624)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:70)
        at com.sun.tools.javac.tree.TreeTranslator.visitNewClass(TreeTranslator.java:282)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.visitNewClass(LambdaToMethod.java:1325)
        at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1516)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
        at com.sun.tools.javac.tree.TreeTranslator.visitReturn(TreeTranslator.java:258)
        at com.sun.tools.javac.tree.JCTree$JCReturn.accept(JCTree.java:1384)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:70)
        at com.sun.tools.javac.tree.TreeTranslator.visitBlock(TreeTranslator.java:162)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.visitBlock(LambdaToMethod.java:1172)
        at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
        at com.sun.tools.javac.tree.TreeTranslator.visitMethodDef(TreeTranslator.java:145)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.visitMethodDef(LambdaToMethod.java:1299)
        at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:70)
        at com.sun.tools.javac.tree.TreeTranslator.visitClassDef(TreeTranslator.java:134)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.visitClassDef(LambdaToMethod.java:1209)
        at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:693)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.analyzeAndPreprocessClass(LambdaToMethod.java:1162)
        at com.sun.tools.javac.comp.LambdaToMethod$LambdaAnalyzerPreprocessor.access$300(LambdaToMethod.java:1119)
        at com.sun.tools.javac.comp.LambdaToMethod.visitClassDef(LambdaToMethod.java:232)
        at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:693)
        at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
        at com.sun.tools.javac.comp.LambdaToMethod.translate(LambdaToMethod.java:197)
        at com.sun.tools.javac.comp.LambdaToMethod.translate(LambdaToMethod.java:190)
        at com.sun.tools.javac.comp.LambdaToMethod.translateTopLevelClass(LambdaToMethod.java:217)
        at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1493)
        at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1356)
        at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:901)
        at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:860)
        at com.sun.tools.javac.main.Main.compile(Main.java:523)
        at com.sun.tools.javac.main.Main.compile(Main.java:381)
        at com.sun.tools.javac.main.Main.compile(Main.java:370)
        at com.sun.tools.javac.main.Main.compile(Main.java:361)
        at com.sun.tools.javac.Main.compile(Main.java:56)
        at com.sun.tools.javac.Main.main(Main.java:42)

REPRODUCIBILITY :
This bug can be reproduced always.

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

public final class Resolver {

    @SuppressWarnings("unchecked")
    public Invocation resolve(Handler handler) {
        return new Invocation((t) -> handler.handle((String) t));
    }

    public static class Handler {
        public void handle(String s) {
            System.out.println(s);
        }
    }

    public static class Invocation<T> {
        public final ThrowingConsumer<T> consumer;

        public Invocation(final ThrowingConsumer<T> consumer) {
            this.consumer = consumer;
        }
    }

    @FunctionalInterface
    public interface ThrowingConsumer<T> extends BiConsumer<T,Consumer<Throwable>> {
        @Override
        default void accept(final T elem, final Consumer<Throwable> errorHandler) {
            try {
                acceptThrows(elem);
            } catch (final Throwable e) {
                errorHandler.accept(e);
            }
        }

        void acceptThrows(T elem) throws Throwable;
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
This error disappears if I replace following line

        return new Invocation((t) -> handler.handle((String) t));

to this one:

        return new Invocation<>((t) -> handler.handle((String) t));