152      */
 153     public static StackWalker getStackWalker() {
 154         return getStackWalker(EnumSet.noneOf(StackWalker.Option.class));
 155     }
 156 
 157     /**
 158      * Gets a {@code StackWalker} instance with the given options specifying
 159      * the stack frame information it can access, and which will traverse at most
 160      * the given {@code maxDepth} number of stack frames.  If no option is
 161      * specified, this {@code StackWalker} obtains the method name and
 162      * the class name with all
 163      * {@linkplain StackWalker.Option#SHOW_HIDDEN_FRAMES hidden frames} skipped.
 164      * The returned {@code StackWalker} can get locals and operands.
 165      *
 166      * @param options stack walk {@link StackWalker.Option options}
 167      *
 168      * @throws SecurityException if the security manager is present and
 169      * it denies access to {@code RuntimePermission("liveStackFrames")}; or
 170      * or if the given {@code options} contains
 171      * {@link StackWalker.Option#RETAIN_CLASS_REFERENCE Option.RETAIN_CLASS_REFERENCE}
 172      * and it denies access to {@code StackFramePermission("retainClassReference")}.
 173      */
 174     public static StackWalker getStackWalker(Set<StackWalker.Option> options) {
 175         SecurityManager sm = System.getSecurityManager();
 176         if (sm != null) {
 177             sm.checkPermission(new RuntimePermission("liveStackFrames"));
 178         }
 179         return StackWalker.newInstance(options, LOCALS_AND_OPERANDS);
 180     }
 181 }

 152      */
 153     public static StackWalker getStackWalker() {
 154         return getStackWalker(EnumSet.noneOf(StackWalker.Option.class));
 155     }
 156 
 157     /**
 158      * Gets a {@code StackWalker} instance with the given options specifying
 159      * the stack frame information it can access, and which will traverse at most
 160      * the given {@code maxDepth} number of stack frames.  If no option is
 161      * specified, this {@code StackWalker} obtains the method name and
 162      * the class name with all
 163      * {@linkplain StackWalker.Option#SHOW_HIDDEN_FRAMES hidden frames} skipped.
 164      * The returned {@code StackWalker} can get locals and operands.
 165      *
 166      * @param options stack walk {@link StackWalker.Option options}
 167      *
 168      * @throws SecurityException if the security manager is present and
 169      * it denies access to {@code RuntimePermission("liveStackFrames")}; or
 170      * or if the given {@code options} contains
 171      * {@link StackWalker.Option#RETAIN_CLASS_REFERENCE Option.RETAIN_CLASS_REFERENCE}
 172      * and it denies access to {@code RuntimePermission("getStackWalkerWithClassReference")}.
 173      */
 174     public static StackWalker getStackWalker(Set<StackWalker.Option> options) {
 175         SecurityManager sm = System.getSecurityManager();
 176         if (sm != null) {
 177             sm.checkPermission(new RuntimePermission("liveStackFrames"));
 178         }
 179         return StackWalker.newInstance(options, LOCALS_AND_OPERANDS);
 180     }
 181 }