59         return "";
  60     }
  61 
  62     /**
  63      * Run the tool with the given I/O channels and arguments. By
  64      * convention a tool returns 0 for success and nonzero for errors.
  65      * Any diagnostics generated will be written to either {@code out}
  66      * or {@code err} in some unspecified format.
  67      *
  68      * @param in "standard" input; use System.in if null
  69      * @param out "standard" output; use System.out if null
  70      * @param err "standard" error; use System.err if null
  71      * @param arguments arguments to pass to the tool
  72      * @return 0 for success; nonzero otherwise
  73      * @throws NullPointerException if the array of arguments contains
  74      * any {@code null} elements.
  75      */
  76     int run(InputStream in, OutputStream out, OutputStream err, String... arguments);
  77 
  78     /**
  79      * Returns the source versions of the Java™ programming language
  80      * supported by this tool.
  81      * @return a set of supported source versions
  82      */
  83     Set<SourceVersion> getSourceVersions();
  84 
  85 }

  59         return "";
  60     }
  61 
  62     /**
  63      * Run the tool with the given I/O channels and arguments. By
  64      * convention a tool returns 0 for success and nonzero for errors.
  65      * Any diagnostics generated will be written to either {@code out}
  66      * or {@code err} in some unspecified format.
  67      *
  68      * @param in "standard" input; use System.in if null
  69      * @param out "standard" output; use System.out if null
  70      * @param err "standard" error; use System.err if null
  71      * @param arguments arguments to pass to the tool
  72      * @return 0 for success; nonzero otherwise
  73      * @throws NullPointerException if the array of arguments contains
  74      * any {@code null} elements.
  75      */
  76     int run(InputStream in, OutputStream out, OutputStream err, String... arguments);
  77 
  78     /**
  79      * Returns the source versions of the Java programming language
  80      * supported by this tool.
  81      * @return a set of supported source versions
  82      */
  83     Set<SourceVersion> getSourceVersions();
  84 
  85 }