142      */
 143     RELEASE_8,
 144 
 145     /**
 146      * The version recognized by the Java Platform, Standard Edition
 147      * 9.
 148      *
 149      * Additions in this release include modules and removal of a
 150      * single underscore from the set of legal identifier names.
 151      *
 152      * @since 9
 153      */
 154      RELEASE_9,
 155 
 156     /**
 157      * The version recognized by the Java Platform, Standard Edition
 158      * 10.
 159      *
 160      * @since 10
 161      */
 162      RELEASE_10;








 163 
 164     // Note that when adding constants for newer releases, the
 165     // behavior of latest() and latestSupported() must be updated too.
 166 
 167     /**
 168      * Returns the latest source version that can be modeled.
 169      *
 170      * @return the latest source version that can be modeled
 171      */
 172     public static SourceVersion latest() {
 173         return RELEASE_10;
 174     }
 175 
 176     private static final SourceVersion latestSupported = getLatestSupported();
 177 
 178     private static SourceVersion getLatestSupported() {
 179         try {
 180             String specVersion = System.getProperty("java.specification.version");
 181 
 182             switch (specVersion) {


 183                 case "10":
 184                     return RELEASE_10;
 185                 case "9":
 186                     return RELEASE_9;
 187                 case "1.8":
 188                     return RELEASE_8;
 189                 case "1.7":
 190                     return RELEASE_7;
 191                 case "1.6":
 192                     return RELEASE_6;
 193             }
 194         } catch (SecurityException se) {}
 195 
 196         return RELEASE_5;
 197     }
 198 
 199     /**
 200      * Returns the latest source version fully supported by the
 201      * current execution environment.  {@code RELEASE_5} or later must
 202      * be returned.

 142      */
 143     RELEASE_8,
 144 
 145     /**
 146      * The version recognized by the Java Platform, Standard Edition
 147      * 9.
 148      *
 149      * Additions in this release include modules and removal of a
 150      * single underscore from the set of legal identifier names.
 151      *
 152      * @since 9
 153      */
 154      RELEASE_9,
 155 
 156     /**
 157      * The version recognized by the Java Platform, Standard Edition
 158      * 10.
 159      *
 160      * @since 10
 161      */
 162      RELEASE_10,
 163 
 164     /**
 165      * The version recognized by the Java Platform, Standard Edition
 166      * 11.
 167      *
 168      * @since 11
 169      */
 170      RELEASE_11;
 171 
 172     // Note that when adding constants for newer releases, the
 173     // behavior of latest() and latestSupported() must be updated too.
 174 
 175     /**
 176      * Returns the latest source version that can be modeled.
 177      *
 178      * @return the latest source version that can be modeled
 179      */
 180     public static SourceVersion latest() {
 181         return RELEASE_11;
 182     }
 183 
 184     private static final SourceVersion latestSupported = getLatestSupported();
 185 
 186     private static SourceVersion getLatestSupported() {
 187         try {
 188             String specVersion = System.getProperty("java.specification.version");
 189 
 190             switch (specVersion) {
 191                 case "11":
 192                     return RELEASE_11;
 193                 case "10":
 194                     return RELEASE_10;
 195                 case "9":
 196                     return RELEASE_9;
 197                 case "1.8":
 198                     return RELEASE_8;
 199                 case "1.7":
 200                     return RELEASE_7;
 201                 case "1.6":
 202                     return RELEASE_6;
 203             }
 204         } catch (SecurityException se) {}
 205 
 206         return RELEASE_5;
 207     }
 208 
 209     /**
 210      * Returns the latest source version fully supported by the
 211      * current execution environment.  {@code RELEASE_5} or later must
 212      * be returned.