Make test compile

Author: GoeLin

test/langtools/jdk/jshell/ShutdownTest.java

@@ -57,13 +57,15 @@ public void testExit() {
         assertEquals(1, shutdownCount);
     }
 
+    @Test
     public void testCloseCallback() {
         shutdownCount = 0;
         getState().onShutdown(this::shutdownCounter);
         getState().close();
         assertEquals(1, shutdownCount);
     }
 
+    @Test
     public void testCloseUnsubscribe() {
         shutdownCount = 0;
         Subscription token = getState().onShutdown(this::shutdownCounter);
@@ -72,6 +74,7 @@ public void testCloseUnsubscribe() {
         assertEquals(0, shutdownCount);
     }
 
+    @Test
     public void testTwoShutdownListeners() {
         ShutdownListener listener1 = new ShutdownListener();
         ShutdownListener listener2 = new ShutdownListener();

test/langtools/jdk/jshell/StopExecutionTest.java

@@ -43,6 +43,7 @@
 import jdk.internal.jshell.tool.StopDetectingInputStream.State;
 import jdk.jshell.JShell;
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.fail;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;