Set JDK 11 for robolectric test configuration

Fixes: 216277743
Test: atest --host NearbyRoboTests
Change-Id: Iedf76ea477d3f18d3ad790253e2328c87a7b5217
diff --git a/core/robolectric_test_config_template.xml b/core/robolectric_test_config_template.xml
index e62175f..483b957 100644
--- a/core/robolectric_test_config_template.xml
+++ b/core/robolectric_test_config_template.xml
@@ -18,7 +18,7 @@
     <option name="test-suite-tag" value="robolectric" />
     <option name="test-suite-tag" value="robolectric-tests" />
 
-    <option name="java-folder" value="prebuilts/jdk/jdk9/linux-x86/" />
+    <option name="java-folder" value="prebuilts/jdk/jdk11/linux-x86/" />
     <option name="exclude-paths" value="java" />
     <option name="use-robolectric-resources" value="true" />