8259863: doc: JShell snippet doesn't compile

Reviewed-by: sundar

src/jdk.jshell/share/classes/jdk/jshell/package-info.java

@@ -68,7 +68,7 @@
  * fixed strings, but would come from the user. Below is a very simplified
  * example of how the API might be used to implement a REPL.
  * <pre>
-* {@code
+ * {@code
  *     import java.io.ByteArrayInputStream;
  *     import java.io.Console;
  *     import java.util.List;
@@ -88,9 +88,9 @@
  *                     List<SnippetEvent> events = js.eval(input);
  *                     for (SnippetEvent e : events) {
  *                         StringBuilder sb = new StringBuilder();
- *                         if (e.causeSnippet == null) {
+ *                         if (e.causeSnippet() == null) {
  *                             //  We have a snippet creation event
- *                             switch (e.status) {
+ *                             switch (e.status()) {
  *                                 case VALID:
  *                                     sb.append("Successful ");
  *                                     break;
@@ -104,16 +104,16 @@
  *                                     sb.append("Failed ");
  *                                     break;
  *                             }
- *                             if (e.previousStatus == Status.NONEXISTENT) {
+ *                             if (e.previousStatus() == Status.NONEXISTENT) {
  *                                 sb.append("addition");
  *                             } else {
  *                                 sb.append("modification");
  *                             }
  *                             sb.append(" of ");
- *                             sb.append(e.snippet.source());
+ *                             sb.append(e.snippet().source());
  *                             System.out.println(sb);
- *                             if (e.value != null) {
- *                                 System.out.printf("Value is: %s\n", e.value);
+ *                             if (e.value() != null) {
+ *                                 System.out.printf("Value is: %s\n", e.value());
  *                             }
  *                             System.out.flush();
  *                         }