//       fallback: chain
				leaf := NewSourceIP()
				leaf.Map["1.2.3.4"] = ToChain("chain")

				inner := NewDestinationIP()
				inner.OnNoMatch = ToMatcher(leaf.Matcher)

				root := NewDestinationPort()
				root.OnNoMatch = ToMatcher(inner.Matcher)
				return root
			},
			want: func() *matcher.Matcher {
				// src port
				// 15001: chain
				want := NewSourceIP()

        if (specs != null) {
            ImmutableList.Builder<SpecMatcher> builder = ImmutableList.builderWithExpectedSize(specs.size());
            for (ContentSpec spec : specs) {
                builder.add(spec.toMatcher());
            }
            matchers = builder.build();
        }
        return matchers;
    }

    private static void checkNotNull(@Nullable String value, String message) {

			Action: &xds.TypedExtensionConfig{
				Name:        name,
				TypedConfig: protoconv.MessageToAny(&wrappers.StringValue{Value: name}),
			},
		},
	}
}

func ToMatcher(match *matcher.Matcher) *matcher.Matcher_OnMatch {
	return &matcher.Matcher_OnMatch{
		OnMatch: &matcher.Matcher_OnMatch_Matcher{
			Matcher: match,
		},
	}
}

			}
			if port.Protocol.IsUnsupported() {
				// If we need to sniff, insert two chains and the protocol detector
				chains = append(chains, tcpChain, httpChain)
				portMapper.Map[portString] = match.ToMatcher(match.NewAppProtocol(match.ProtocolMatch{
					TCP:  match.ToChain(tcpName),
					HTTP: match.ToChain(httpName),
				}))
			} else if port.Protocol.IsHTTP() {
				// Otherwise, just insert HTTP/TCP

); public final String toString(); public final java.util.Map getAttributes(); public final PatternMatcher getPatternMatcher(); } org/apache/ivy/plugins/matcher/NoMatcher.class package org.apache.ivy.plugins.matcher; public final synchronized class NoMatcher implements Matcher { public static final Matcher INSTANCE; public void NoMatcher(); public final boolean matches(String); static void <clinit>(); } org/apache/ivy/plugins/matcher/Matcher.class package org.apache.ivy.plugins.matcher; public abstract...