Use JDK17-friendly base class in 683-clinit-inline-static-invoke

Bug: 239968561
Bug: 233029164
Test: art/tools/buildbot-build.sh --dist --host
Change-Id: Ic07c81a0dbce27eb438b60ad02ca7589e6777369
diff --git a/test/683-clinit-inline-static-invoke/src/Main.java b/test/683-clinit-inline-static-invoke/src/Main.java
index 6f15e27..d222539 100644
--- a/test/683-clinit-inline-static-invoke/src/Main.java
+++ b/test/683-clinit-inline-static-invoke/src/Main.java
@@ -26,6 +26,6 @@
     // TypeId in the current DexFile, we erroneously provided the type index from the
     // declaring DexFile and that caused a crash. This was fixed by changing the
     // ClinitCheck entrypoint to take the Class reference from LoadClass.
-    int placeholder = MyModifier.classModifiers();
+    boolean placeholder = MyCalendarUtils.isJulianLeapYear(-43);
   }
 }