Fully replace [Content_Types].xml in signed APPX files

README.md

@@ -68,6 +68,7 @@ See https://ebourg.github.io/jsign for more information.
 * RSA 4096 keys are supported with the `PIV` storetype (for Yubikeys with firmware version 5.7 or higher)
 * Certificates using an Ed25519 or Ed448 key are now supported (experimental)
 * The APPX/MSIX bundles are now signed with the correct Authenticode UUID
+* The signed APPX/MSIX files no longer contain a `[Content_Types].old` entry
 * The error message displayed when the password of a PKCS#12 keystore is missing has been fixed
 * The log4j configuration warning displayed when signing a MSI file has been fixed (contributed by Pascal Davoust)
 * The value of the `storetype` parameter is now case insensitive

jsign-core/src/main/java/net/jsign/appx/APPXFile.java

@@ -271,7 +271,7 @@ void addContentType(String partName, String contentType) throws IOException {
         if (!contentTypes.contains(override)) {
             contentTypes = contentTypes.replace("</Types>", "<Override PartName=\"" + partName + "\" ContentType=\"" + contentType + "\"/></Types>");
 
-            renameEntry("[Content_Types].xml", "[Content_Types].old");
+            removeEntry("[Content_Types].xml");
             addEntry("[Content_Types].xml", contentTypes.getBytes(), true);
         }
     }