[tests] drops Java9 classes from Java8 mock JDK

java/java-tests/testSrc/com/intellij/codeInsight/daemon/AnnotationsHighlightingTest.java

@@ -15,7 +15,9 @@
  */
 package com.intellij.codeInsight.daemon;
 
+import com.intellij.openapi.projectRoots.Sdk;
 import com.intellij.pom.java.LanguageLevel;
+import com.intellij.testFramework.IdeaTestUtil;
 
 /**
  * @author ven
@@ -23,6 +25,11 @@ import com.intellij.pom.java.LanguageLevel;
 public class AnnotationsHighlightingTest extends LightDaemonAnalyzerTestCase {
   private static final String BASE_PATH = "/codeInsight/daemonCodeAnalyzer/annotations";
 
+  @Override
+  protected Sdk getProjectJDK() {
+    return IdeaTestUtil.getMockJdk9();
+  }
+
   public void testWrongPlace() { setLanguageLevel(LanguageLevel.JDK_1_7); doTest(); }
   public void testNotValueNameOmitted() { doTest(); }
   public void testCannotFindMethod() { doTest(); }