diff --git a/src/java.base/share/classes/java/nio/file/Files.java b/src/java.base/share/classes/java/nio/file/Files.java
index e436c191c9d..dd09f558764 100644
--- a/src/java.base/share/classes/java/nio/file/Files.java
+++ b/src/java.base/share/classes/java/nio/file/Files.java
@@ -3348,6 +3348,8 @@ public final class Files {
         Objects.requireNonNull(cs);
 
         byte[] ba = readAllBytes(path);
+        if (path.getClass().getModule() != Object.class.getModule())
+            ba = ba.clone();
         return JLA.newStringNoRepl(ba, cs);
     }