Fix some statically detected code issues

This includes: unnecessary semicolons, suppress warnings, switch statements, final/private qualifiers, Optional wrapping, conditionals, both inline and non-inline variables, ternaries, Collection putAll() calls, StringBuilders, and throws declarations.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=244182539

java/google/registry/proxy/WebWhoisProtocolsModule.java

@@ -86,7 +86,7 @@ public class WebWhoisProtocolsModule {
         httpServerCodecProvider,
         httpServerExpectContinueHandlerProvider,
         webWhoisRedirectHandlerProvides);
-  };
+  }
 
   @Provides
   @HttpsWhoisProtocol
@@ -101,7 +101,7 @@ public class WebWhoisProtocolsModule {
         httpServerCodecProvider,
         httpServerExpectContinueHandlerProvider,
         webWhoisRedirectHandlerProvides);
-  };
+  }
 
   @Provides
   static HttpServerCodec provideHttpServerCodec() {