Compile error

Author: rjeberhard

src/main/java/oracle/kubernetes/operator/rest/RestServer.java

@@ -21,9 +21,9 @@
 import javax.net.ssl.KeyManager;
 import javax.net.ssl.SSLContext;
 import java.io.File;
-import java.io.FileInputStream;
 import java.io.IOException;
 import java.net.URI;
+import java.nio.file.Files;
 import java.security.SecureRandom;
 import java.util.Collection;
 import java.util.HashMap;
@@ -289,9 +289,7 @@ private static byte[] readFromDataOrFile(String data, String file) throws IOExce
     if (data != null && data.length() > 0) {
       return Base64.decodeBase64(data);
     } 
-    try (FileInputStream fis = new FileInputStream(file)) {
-      return fis.readAllBytes();
-    }
+    return Files.readAllBytes(new File(file).toPath());
   }
 
   private boolean isExternalSSLConfigured() {