src/jdk.compiler/share/classes/module-info.java

*** 24,33 ****
--- 24,35 ----
   */
  
  /** Defines the implementation of the
   *  {@link javax.tools.ToolProvider#getSystemJavaCompiler system Java compiler}
   *  and its command line equivalent, <em>javac</em>, as well as <em>javah</em>.
+  *
+  *  @since 9
   */
  module jdk.compiler {
      requires transitive java.compiler;
  
      exports com.sun.source.doctree;