Seems it was filed, and has already been fixed in JDK17 https://bugs.openjdk.java.net/browse/JDK-8261845
Strange, I searched, but could not find any issues when I filed my bug report. /Sverre man. 26. apr. 2021 kl. 19:19 skrev Sverre Moe <sverre....@gmail.com>: > There was a regression introduced in JDK 15 of jpackage tool on Windows. > The file permission of the built EXE has changed. The file is now ReadOnly. > Both EXE and MSI was ReadWrite, now > EXE is Read-Only while MSI is still Read-Write > > The EXE can no longer be signed because it cannot be modified. > > I just filed a bug report on this > internal review ID : 9070046 > > /Sverre >