Invalid bytecode in shaded JAR reported under stricter checks in JDK9

[retronym]

Libraries, Version

shaded-async-client 1.0.1

API

Neither

JDK

Java(TM) SE Runtime Environment (build 9+178)

Expected Behavior

JVM loads classfile

Actual Behavior

⚡ (java_use 9; scala -cp /Users/jz/.ivy2/cache/com.typesafe.play/shaded-asynchttpclient/jars/shaded-asynchttpclient-1.0.1.jar)
Welcome to Scala 2.12.2 (Java HotSpot(TM) 64-Bit Server VM, Java 9).
Type in expressions for evaluation. Or try :help.

scala> play.shaded.ahc.org.asynchttpclient.proxy.ProxyServerSelector.NO_PROXY_SELECTOR
java.lang.IncompatibleClassChangeError: Inconsistent constant pool data in classfile for class play/shaded/ahc/org/asynchttpclient/proxy/ProxyServerSelector. Method lambda$static$0(Lplay/shaded/ahc/org/asynchttpclient/uri/Uri;)Lplay/shaded/ahc/org/asynchttpclient/proxy/ProxyServer; at index 30 is CONSTANT_MethodRef and should be CONSTANT_InterfaceMethodRef
  at play.shaded.ahc.org.asynchttpclient.proxy.ProxyServerSelector.<clinit>(ProxyServerSelector.java:21)
  ... 29 elided

⚡ javap -private -c -cp /Users/jz/.ivy2/cache/com.typesafe.play/shaded-asynchttpclient/jars/shaded-asynchttpclient-1.0.1.jar play.shaded.a
Compiled from "ProxyServerSelector.java"
public interface play.shaded.ahc.org.asynchttpclient.proxy.ProxyServerSelector {
  public static final play.shaded.ahc.org.asynchttpclient.proxy.ProxyServerSelector NO_PROXY_SELECTOR;

  public abstract play.shaded.ahc.org.asynchttpclient.proxy.ProxyServer select(play.shaded.ahc.org.asynchttpclient.uri.Uri);

  private static play.shaded.ahc.org.asynchttpclient.proxy.ProxyServer lambda$static$0(play.shaded.ahc.org.asynchttpclient.uri.Uri);
    Code:
       0: aconst_null
       1: areturn

  static {};
    Code:
       0: invokedynamic #33,  0             // InvokeDynamic #0:select:()Lplay/shaded/ahc/org/asynchttpclient/proxy/ProxyServerSelector;
       5: putstatic     #35                 // Field NO_PROXY_SELECTOR:Lplay/shaded/ahc/org/asynchttpclient/proxy/ProxyServerSelector;
       8: return
}