src/java.base/share/classes/jdk/internal/misc/ExtendedMapMode.java

*** 25,47 ****
  
  package jdk.internal.misc;
  
  import java.lang.invoke.MethodHandle;
  import java.lang.invoke.MethodHandles;
  import java.lang.invoke.MethodType;
  import java.nio.channels.FileChannel.MapMode;
  
  /**
   * JDK-specific map modes implemented in java.base.
   */
  public class ExtendedMapMode {
  
      static final MethodHandle MAP_MODE_CONSTRUCTOR;
- 
      static {
          try {
!             var lookup = MethodHandles.privateLookupIn(MapMode.class, MethodHandles.lookup());
              var methodType = MethodType.methodType(void.class, String.class);
              MAP_MODE_CONSTRUCTOR = lookup.findConstructor(MapMode.class, methodType);
          } catch (Exception e) {
              throw new InternalError(e);
          }
--- 25,51 ----
  
  package jdk.internal.misc;
  
  import java.lang.invoke.MethodHandle;
  import java.lang.invoke.MethodHandles;
+ import java.lang.invoke.MethodHandles.Lookup;
  import java.lang.invoke.MethodType;
  import java.nio.channels.FileChannel.MapMode;
+ import java.security.AccessController;
+ import java.security.PrivilegedExceptionAction;
  
  /**
   * JDK-specific map modes implemented in java.base.
   */
  public class ExtendedMapMode {
  
      static final MethodHandle MAP_MODE_CONSTRUCTOR;
      static {
          try {
!             PrivilegedExceptionAction<Lookup> pae = () ->
!                 MethodHandles.privateLookupIn(MapMode.class, MethodHandles.lookup());
!             Lookup lookup = AccessController.doPrivileged(pae);
              var methodType = MethodType.methodType(void.class, String.class);
              MAP_MODE_CONSTRUCTOR = lookup.findConstructor(MapMode.class, methodType);
          } catch (Exception e) {
              throw new InternalError(e);
          }