jpackage usage problems

Hiran Chaudhuri hiran.chaudhuri at gmx.net
Mon Apr 4 06:49:22 UTC 2022 

Hello Alex,

I tried running the same command with the jdk19 you pointed at. As a
first, I get this output:

$JAVA_HOME/bin/jpackage --version
19-ea

With that, I invoked the command as before, and i fairly got the same
output. So the behaviour in the latest version has not changed.

Two things I'd like to point out:
- there is no JPackage version in the output itself so both you and me
have to trust the correct one was called
- I found out the mistake: I should have used
  --app-image build/app-image/SettlersRemake
  but JPackage gave a warning in the beginning and processed all the
  rest

Hiran


$JAVA_HOME/bin/jpackage --app-image build/app-image --verbose --dest
build
[08:41:58.675] Warning: app-image dir not generated by jpackage.
[08:41:58.688] Running dpkg
[08:41:58.696] Command [PID: 21712]:
    dpkg --print-architecture
[08:41:58.696] Output:
    amd64
[08:41:58.698] Returned: 0

[08:41:58.702] Running dpkg
[08:41:58.719] Command [PID: 21714]:
    dpkg -s coreutils
[08:41:58.719] Output:
    Package: coreutils
    Essential: yes
    Status: install ok installed
    Priority: required
    Section: utils
    Installed-Size: 7196
    Maintainer: Ubuntu Developers <
ubuntu-devel-discuss at lists.ubuntu.com>
    Architecture: amd64
    Multi-Arch: foreign
    Version: 8.30-3ubuntu2
    Pre-Depends: libacl1 (>= 2.2.23), libattr1 (>= 1:2.4.44), libc6 (>=
2.28), libselinux1 (>= 2.1.13)
    Description: GNU core utilities
     This package contains the basic file, shell and text manipulation
     utilities which are expected to exist on every operating system.
     .
     Specifically, this package includes:
     arch base64 basename cat chcon chgrp chmod chown chroot cksum comm
cp
     csplit cut date dd df dir dircolors dirname du echo env expand
expr
     factor false flock fmt fold groups head hostid id install join
link ln
     logname ls md5sum mkdir mkfifo mknod mktemp mv nice nl nohup nproc
numfmt
     od paste pathchk pinky pr printenv printf ptx pwd readlink
realpath rm
     rmdir runcon sha*sum seq shred sleep sort split stat stty sum sync
tac
     tail tee test timeout touch tr true truncate tsort tty uname
unexpand
     uniq unlink users vdir wc who whoami yes
    Homepage: http://gnu.org/software/coreutils
    Original-Maintainer: Michael Stone <mstone at debian.org>
[08:41:58.719] Returned: 0

[08:41:58.720] Running dpkg-deb
[08:41:58.722] Warning: app-image dir not generated by jpackage.
[08:41:58.723] Warning: app-image dir not generated by jpackage.
[08:41:58.723] java.lang.NullPointerException: Cannot invoke
"java.lang.CharSequence.length()" because "this.text" is null
        at
java.base/java.util.regex.Matcher.getTextLength(Matcher.java:1769)
        at java.base/java.util.regex.Matcher.reset(Matcher.java:415)
        at java.base/java.util.regex.Matcher.<init>(Matcher.java:252)
        at java.base/java.util.regex.Pattern.matcher(Pattern.java:1144)
        at
jdk.jpackage/jdk.jpackage.internal.LinuxDebBundler.lambda$static$1(Linu
xDebBundler.java:84)
        at
jdk.jpackage/jdk.jpackage.internal.LinuxPackageBundler.validate(LinuxPa
ckageBundler.java:72)
        at
jdk.jpackage/jdk.jpackage.internal.Arguments.generateBundle(Arguments.j
ava:688)
        at
jdk.jpackage/jdk.jpackage.internal.Arguments.processArguments(Arguments
.java:561)
        at jdk.jpackage/jdk.jpackage.main.Main.execute(Main.java:91)
        at jdk.jpackage/jdk.jpackage.main.Main.main(Main.java:52)
[08:41:58.725] jdk.jpackage.internal.PackagerException: Bundler DEB
Bundle failed because of java.lang.NullPointerException: Cannot invoke
"java.lang.CharSequence.length()" because "this.text" is null
        at
jdk.jpackage/jdk.jpackage.internal.Arguments.generateBundle(Arguments.j
ava:710)
        at
jdk.jpackage/jdk.jpackage.internal.Arguments.processArguments(Arguments
.java:561)
        at jdk.jpackage/jdk.jpackage.main.Main.execute(Main.java:91)
        at jdk.jpackage/jdk.jpackage.main.Main.main(Main.java:52)
Caused by: java.lang.NullPointerException: Cannot invoke
"java.lang.CharSequence.length()" because "this.text" is null
        at
java.base/java.util.regex.Matcher.getTextLength(Matcher.java:1769)
        at java.base/java.util.regex.Matcher.reset(Matcher.java:415)
        at java.base/java.util.regex.Matcher.<init>(Matcher.java:252)
        at java.base/java.util.regex.Pattern.matcher(Pattern.java:1144)
        at
jdk.jpackage/jdk.jpackage.internal.LinuxDebBundler.lambda$static$1(Linu
xDebBundler.java:84)
        at
jdk.jpackage/jdk.jpackage.internal.LinuxPackageBundler.validate(LinuxPa
ckageBundler.java:72)
        at
jdk.jpackage/jdk.jpackage.internal.Arguments.generateBundle(Arguments.j
ava:688)
        ... 3 more


On Fri, 2022-04-01 at 12:37 -0400, Alexey Semenyuk wrote:
> Hi Hiran,
>
> Looks like jpackage fails because of missing package name on the
> command
> line.
> I agree that the error message is not helpful. Can you try one of
> jdk19
> EA builds [1] to see if the problem is reproducible?
>
> [1] https://jdk.java.net/19/
>
> - Alexey
>
> On 4/1/2022 5:58 AM, Hiran Chaudhuri wrote:
> > Hello there.
> >
> > While I am trying to package my project using jpackage 16.0.1 on
> > Ubuntu
> > 20 LTS I have difficulty in assembling the correct commands.
> >
> > The documentation covers a lot but not everything. For example, it
> > is
> > not clear to me when I have to provide an option - especially since
> > I
> > meanwhile take a two step approach of building the appimage, then
> > tweaking something (that could have done by JPackage directly) and
> > finally building the DEB package.
> >
> > While I believe the documentation is good enough, the error
> > messages
> > presented by JPackage are not. Here is one example. Hopefully you
> > agree
> > that the NullPointerException does not at all tell me what is wrong
> > and
> > what I could improve on.
> >
> > My feeling is that JPackage should do some better error handling
> > and
> > come up with improved messages.
> >
> > Hiran
> >
> >
> > $ jpackage --app-image build/app-image --verbose --dest build
> > [10:34:45.915] Warning: app-image dir not generated by jpackage.
> > [10:34:45.930] Running dpkg
> > [10:34:45.937] Command:
> >      dpkg --print-architecture
> > [10:34:45.937] Output:
> >      amd64
> > [10:34:45.939] Returned: 0
> >
> > [10:34:45.944] Running dpkg
> > [10:34:45.961] Command:
> >      dpkg -s coreutils
> > [10:34:45.962] Output:
> >      Package: coreutils
> >      Essential: yes
> >      Status: install ok installed
> >      Priority: required
> >      Section: utils
> >      Installed-Size: 7196
> >      Maintainer: Ubuntu Developers <
> > ubuntu-devel-discuss at lists.ubuntu.com>
> >      Architecture: amd64
> >      Multi-Arch: foreign
> >      Version: 8.30-3ubuntu2
> >      Pre-Depends: libacl1 (>= 2.2.23), libattr1 (>= 1:2.4.44),
> > libc6 (>=
> > 2.28), libselinux1 (>= 2.1.13)
> >      Description: GNU core utilities
> >       This package contains the basic file, shell and text
> > manipulation
> >       utilities which are expected to exist on every operating
> > system.
> >       .
> >       Specifically, this package includes:
> >       arch base64 basename cat chcon chgrp chmod chown chroot cksum
> > comm
> > cp
> >       csplit cut date dd df dir dircolors dirname du echo env
> > expand
> > expr
> >       factor false flock fmt fold groups head hostid id install
> > join
> > link ln
> >       logname ls md5sum mkdir mkfifo mknod mktemp mv nice nl nohup
> > nproc
> > numfmt
> >       od paste pathchk pinky pr printenv printf ptx pwd readlink
> > realpath rm
> >       rmdir runcon sha*sum seq shred sleep sort split stat stty sum
> > sync
> > tac
> >       tail tee test timeout touch tr true truncate tsort tty uname
> > unexpand
> >       uniq unlink users vdir wc who whoami yes
> >      Homepage: http://gnu.org/software/coreutils
> >      Original-Maintainer: Michael Stone <mstone at debian.org>
> > [10:34:45.962] Returned: 0
> >
> > [10:34:45.963] Running dpkg-deb
> > [10:34:45.965] Warning: app-image dir not generated by jpackage.
> > [10:34:45.967] Warning: app-image dir not generated by jpackage.
> > [10:34:45.967] java.lang.NullPointerException: Cannot invoke
> > "java.lang.CharSequence.length()" because "this.text" is null
> >          at
> > java.base/java.util.regex.Matcher.getTextLength(Matcher.java:1769)
> >          at
> > java.base/java.util.regex.Matcher.reset(Matcher.java:415)
> >          at
> > java.base/java.util.regex.Matcher.<init>(Matcher.java:252)
> >          at
> > java.base/java.util.regex.Pattern.matcher(Pattern.java:1134)
> >          at
> > jdk.jpackage/jdk.jpackage.internal.LinuxDebBundler.lambda$static$1(
> > Linu
> > xDebBundler.java:83)
> >          at
> > jdk.jpackage/jdk.jpackage.internal.LinuxPackageBundler.validate(Lin
> > uxPa
> > ckageBundler.java:72)
> >          at
> > jdk.jpackage/jdk.jpackage.internal.Arguments.generateBundle(Argumen
> > ts.j
> > ava:663)
> >          at
> > jdk.jpackage/jdk.jpackage.internal.Arguments.processArguments(Argum
> > ents
> > .java:538)
> >          at
> > jdk.jpackage/jdk.jpackage.main.Main.execute(Main.java:98)
> >          at jdk.jpackage/jdk.jpackage.main.Main.main(Main.java:52)
> > [10:34:45.969] jdk.jpackage.internal.PackagerException: Bundler DEB
> > Bundle failed because of java.lang.NullPointerException: Cannot
> > invoke
> > "java.lang.CharSequence.length()" because "this.text" is null
> >          at
> > jdk.jpackage/jdk.jpackage.internal.Arguments.generateBundle(Argumen
> > ts.j
> > ava:685)
> >          at
> > jdk.jpackage/jdk.jpackage.internal.Arguments.processArguments(Argum
> > ents
> > .java:538)
> >          at
> > jdk.jpackage/jdk.jpackage.main.Main.execute(Main.java:98)
> >          at jdk.jpackage/jdk.jpackage.main.Main.main(Main.java:52)
> > Caused by: java.lang.NullPointerException: Cannot invoke
> > "java.lang.CharSequence.length()" because "this.text" is null
> >          at
> > java.base/java.util.regex.Matcher.getTextLength(Matcher.java:1769)
> >          at
> > java.base/java.util.regex.Matcher.reset(Matcher.java:415)
> >          at
> > java.base/java.util.regex.Matcher.<init>(Matcher.java:252)
> >          at
> > java.base/java.util.regex.Pattern.matcher(Pattern.java:1134)
> >          at
> > jdk.jpackage/jdk.jpackage.internal.LinuxDebBundler.lambda$static$1(
> > Linu
> > xDebBundler.java:83)
> >          at
> > jdk.jpackage/jdk.jpackage.internal.LinuxPackageBundler.validate(Lin
> > uxPa
> > ckageBundler.java:72)
> >          at
> > jdk.jpackage/jdk.jpackage.internal.Arguments.generateBundle(Argumen
> > ts.j
> > ava:663)
> >          ... 3 more
> >
> > $
> >
> >

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