Android's Java 9, 10, 11, and 12 Support
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Jake Wharton
$ java -version java version "1.8.0_192" Java(TM) SE Runtime Environment (build 1.8.0_192-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.192-b12, mixed mode) $ javac *.java $ javap -c *.class class Java9Concat { public static java.lang.String thing(java.lang.String, java.lang.String); Code: 0: new #2 // class java/lang/StringBuilder 3: dup 4: invokespecial #3 // Method java/lang/StringBuilder.