Use jdk11 instead of packaged java to fix printing

pkgs/applications/misc/pdfstudioviewer/default.nix

@@ -1,11 +1,19 @@
-{ stdenv, lib, fetchurl, dpkg, makeDesktopItem, copyDesktopItems
-, autoPatchelfHook, makeWrapper, sane-backends, xorg, jdk11, gtk2, gtk3 }:
+{ stdenv
+, lib
+, fetchurl
+, dpkg
+, makeDesktopItem
+, copyDesktopItems
+, autoPatchelfHook
+, sane-backends
+, jdk11
+}:
 
 let year = "2021";
 in stdenv.mkDerivation rec {
   pname = "pdfstudioviewer";
   version = "${year}.1.2";
-  autoPatchelfIgnoreMissingDeps = true;
+  autoPatchelfIgnoreMissingDeps = false;
   strictDeps = true;
 
   src = fetchurl {
@@ -15,15 +23,15 @@ in stdenv.mkDerivation rec {
     sha256 = "128k3fm8m8zdykx4s30g5m2zl7cgmvs4qinf1w525zh84v56agz6";
   };
 
-  buildInputs =
-    [ xorg.libXrandr xorg.libXtst sane-backends xorg.libXxf86vm gtk2 gtk3 ];
+  buildInputs = [
+    sane-backends
+    jdk11
+  ];
 
   nativeBuildInputs = [
     autoPatchelfHook
     dpkg
     copyDesktopItems
-    jdk11 # for unpacking .jar.pack files
-    makeWrapper
   ];
 
   desktopItems = [
@@ -42,9 +50,12 @@ in stdenv.mkDerivation rec {
   ];
 
   unpackPhase = "dpkg-deb -x $src .";
-  dontConfigure = true;
   dontBuild = true;
 
+  postPatch = ''
+    substituteInPlace opt/${pname}${year}/${pname}${year} --replace "# INSTALL4J_JAVA_HOME_OVERRIDE=" "INSTALL4J_JAVA_HOME_OVERRIDE=${jdk11.out}"
+  '';
+
   installPhase = ''
     runHook preInstall
 
@@ -52,15 +63,10 @@ in stdenv.mkDerivation rec {
     mkdir -p $out/share
     mkdir -p $out/share/pixmaps
     cp -r opt/${pname}${year} $out/share/
+    rm -rf $out/share/${pname}${year}/jre
     ln -s $out/share/${pname}${year}/.install4j/${pname}${year}.png  $out/share/pixmaps/
     ln -s $out/share/${pname}${year}/${pname}${year} $out/bin/${pname}
 
-    #Unpack jar files. Otherwise pdfstudio does this and fails due to read-only FS.
-    for pfile in $out/share/${pname}${year}/jre/lib/{,ext/}*.jar.pack; do
-      jar_file=`echo "$pfile" | awk '{ print substr($0,1,length($0)-5) }'`
-      unpack200 -r "$pfile" "$jar_file"
-    done
-
     runHook postInstall
   '';