JPackage: Fails run jpackage assemble

[GrolarDan]

Task List

• Steps to reproduce provided
• Stacktrace (if present) provided
• Example that reproduces the problem (link to git repository is ideal)
• Full description of the issue provided (see below)

Steps to Reproduce

1. Use this repo https://github.com/GrolarDan/pg-releaser-package
2. Run mvn package -P release-local

Expected Behaviour

The package should be generated

Actual Behaviour

I get this error:
Cannot invoke "org.jreleaser.maven.plugin.Jpackage.setName(String)" because the return value of "java.util.Map$Entry.getValue()" is null

Environment Information

• Operating System: Windows
• JReleaser Version: 1.1.0
• JDK Version: openjdk version "17.0.2" 2022-01-18

Please paste stacktraces from [out|build|target]/jreleaser/trace.log.

[INFO]  JReleaser 1.1.0
------------------------------------------------------------
jreleaser 1.1.0
------------------------------------------------------------
Build time:   2022-06-30 15:38:00Z
Revision:     fb2912f61f73eb1d248aac992ad499050ecdceb1
------------------------------------------------------------
[INFO]    - basedir set to C:\_Prg\01_Java\05_Playground\JReleaser\pg-jreleaser-package

[aalmiray]

It looks like you're missing some configuration. jpackage expects a runtime image which you can either create manually or let JReleaser assemble it for you. There's also some project metadata that's missing. The following configuration should work:

                                <configuration>
                                    <jreleaser>
                                        <project>
                                            <description>Project description goes here</description>
                                            <copyright>2022 Daniel Masek</copyright>
                                            <java>
                                                <mainModule>dmk.pg.jreleaser</mainModule>
                                                <mainClass>dmk.pg.jreleaser.Main</mainClass>
                                            </java>
                                        </project>
                                        <assemble>
                                            <jlink>
                                                <app-jlink>
                                                    <active>RELEASE</active>
                                                    <imageName>${project.artifactId}-${project.version}</imageName>
                                                    <executable>${project.artifactId}</executable>
                                                    <exported>false</exported>
                                                    <mainJar>
                                                        <path>${project.build.directory}/${project.artifactId}-${project.version}.jar</path>
                                                    </mainJar>
                                                </app-jlink>
                                            </jlink>
                                            <jpackage>
                                                <app>
                                                    <active>RELEASE</active>
                                                    <jlink>app-jlink</jlink>
                                                    <applicationPackage>
                                                        <vendor>Acme</vendor>
                                                        <appVersion>1.0</appVersion>
                                                    </applicationPackage>
                                                    <launcher>
                                                        <launchers>dmk=./jpackage.properties</launchers>
                                                    </launcher>
                                                    <windows>
                                                        <appName>dmk-jreleaser</appName>
                                                        <installDir>dmk-jreleaser</installDir>
                                                        <dirChooser>true</dirChooser>
                                                    </windows>
                                                </app>
                                            </jpackage>
                                        </assemble>
                                    </jreleaser>
                                </configuration>

Note that appVersion must be changed:

Bundler Mac DMG Package skipped because of a configuration problem: "Version [1.0-TEST] contains invalid component [0-TEST]" 
Advice to fix: Set a compatible 'app-version' value. Valid versions are one to three integers separated by dots.

[GrolarDan]

Hi, thanks for quick reply.

I did the changes you suggested but without luck.
I'm still getting the same error:
Cannot invoke "org.jreleaser.maven.plugin.Jpackage.setName(String)" because the return value of "java.util.Map$Entry.getValue()" is null

The github is updated.

[aalmiray]

Notice the use of the <launcher> tag. It should be this

                                                    <launcher>
                                                        <launchers>dmk=./jpackage.properties</launchers>
                                                    </launcher>

Also, do not bind config and assemble goals together. The config goal expects all artifatcs to exist which assemble will create, effectively throwing an exception. Only bind assemble.

[GrolarDan]

Thank you for your help. It works now like a charm.
I think, it was the config goal why it was failing.

[GrolarDan]

Thank you for your help. It works now like a charm.
I think, it was the config goal why it was failing.