src/java.base/share/classes/java/io/RandomAccessFile.java

rev 51958 : 8211122: Reduce the number of internal classes made accessible to jdk.unsupported
Reviewed-by: alanb, dfuchs, kvn
rev 51959 : resolve JDK-8211122

@@ -24,10 +24,11 @@
  */
 
 package java.io;
 
 import java.nio.channels.FileChannel;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import jdk.internal.access.JavaIORandomAccessFileAccess;
 import jdk.internal.access.SharedSecrets;
 import sun.nio.ch.FileChannelImpl;