--- old/src/java.base/share/classes/java/io/File.java 2018-10-12 20:18:47.000000000 -0700 +++ new/src/java.base/share/classes/java/io/File.java 2018-10-12 20:18:47.000000000 -0700 @@ -2237,7 +2237,7 @@ if (sep != separatorChar) pathField = pathField.replace(sep, separatorChar); String path = fs.normalize(pathField); - UNSAFE.putObject(this, PATH_OFFSET, path); + UNSAFE.putReference(this, PATH_OFFSET, path); UNSAFE.putIntVolatile(this, PREFIX_LENGTH_OFFSET, fs.prefixLength(path)); }