8255394: jdk/test/lib/hexdump/ASN1FormatterTest.java fails with ---illegal-access=deny

Reviewed-by: alanb, weijun

test/lib-test/jdk/test/lib/hexdump/ASN1FormatterTest.java

@@ -39,6 +39,7 @@ import static org.testng.Assert.*;
 /*
  * @test
  * @summary ASN.1 formatting
+ * @modules java.base/sun.security.util
  * @library /test/lib
  * @compile ASN1FormatterTest.java
  * @run testng jdk.test.lib.hexdump.ASN1FormatterTest

test/lib/jdk/test/lib/hexdump/ASN1Formatter.java

@@ -412,7 +412,6 @@ public class ASN1Formatter implements HexPrinter.Formatter {
             // Look up the OID; if the class is not accessible just return the numeric form
             Class<?> cl = Class.forName("sun.security.util.KnownOIDs");
             Method findMatch = cl.getDeclaredMethod("findMatch", String.class);
-            findMatch.setAccessible(true);
             Object oid = findMatch.invoke(null, noid);
             return (oid == null) ? noid : noid + " (" + oid.toString() + ")";
         } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {