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NullPointerException when publishing a Grails 3 plugin

I am trying to publish this Grails 3 plugin in Bintray following the steps in this tutorial . The last step is to run

gradle bintrayUpload

at the command line from the root of the project. When I do this I get the following error

FAILURE: Build failed with an exception.

* What went wrong:
java.lang.NullPointerException (no error message)

* Try:
Run with --info or --debug option to get more log output.

* Exception is:
java.lang.NullPointerException
    at org.gradle.api.internal.tasks.DefaultTaskDependency.add(DefaultTaskDependency.java:109)
    at org.gradle.api.internal.AbstractTask$11.run(AbstractTask.java:327)
    at org.gradle.api.internal.tasks.TaskMutator.mutate(TaskMutator.java:37)
    at org.gradle.api.internal.AbstractTask.dependsOn(AbstractTask.java:325)
    at com.jfrog.bintray.gradle.BintrayPlugin$_apply_closure2_closure5.doCall(BintrayPlugin.groovy:96)
    at com.jfrog.bintray.gradle.BintrayPlugin$_apply_closure2.doCall(BintrayPlugin.groovy:88)

Any ideas on what is causing the problem?

Update

Following the suggestions below, I made the following changes to build.gradle

  • updated bintray plugin to version 1.2
  • changed group "org.grails.plugins"

    togroup "domurtag.plugins"

FAILURE: Build failed with exception.

  • What went wrong: Execution completed for task ': bintrayUpload'.

    Failed to create package 'grails / plugins / org.grails.plugins: grails-simple-captcha': HTTP / 1.1 403 Forbidden [message: Forbidden]

      

I added these environment variables

BINTRAY_USER=domurtag
BINTRAY_KEY=my_api_key

The error message indicates that the 403 reason is trying to publish the plugin to a repository grails/plugins

(which I don't have access to), but I don't know why this is happening?

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3 answers


I have seen exactly the same stack for my Gradle build. My Gradle build script was using com.jfrog.bintray

version 1.1. Build succeeds after upgrading to version 1.2.



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Mistake

Could not create package 'grails/plugins/org.grails.plugins:grails-simple-captcha': HTTP/1.1 403 Forbidden [message:forbidden]

This is because you are trying to publish a repository grails/plugins

to which you do not have publish permission. You have to change the build.gradle

bintray configuration to publish to your own repository. Example:



version "0.1"
group "benorama.plugins"
bintray {
  pkg {
    userOrg = '' // If you want to publish to an organization
    name = "benorama.plugins:$project.name"
    issueTrackerUrl = "https://github.com/benorama/grails-$project.name/issues"
    vcsUrl = "https://github.com/benorama/grails-$project.name"
    version {
      attributes = ['grails-plugin': "benorama.plugins:$project.name"]
      name = project.version
    }
  }
}

Once you've published your own repository, you can request to include your plugin in grails/plugins

See this tutorial for a good guide: https://medium.com/@benorama/how-to-publish-your-grails-3-plugin-to-bintray-c341b24f567d

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Your problem is your bintray config in build.gradle. By default, the Bintray Gradle plugin is configured with external files:

// Used for publishing to central repository, remove if not needed
apply from: 'https://raw.githubusercontent.com/grails/grails-profile-repository/master/profiles/plugin/templates/grailsCentralPublishing.gradle'
apply from: 'https://raw.githubusercontent.com/grails/grails-profile-repository/master/profiles/plugin/templates/bintrayPublishing.gradle'

so that you can override this config, then add your own config, for example:

// Used for publishing to central repository, remove if not needed
apply from: 'https://raw.githubusercontent.com/grails/grails-profile-repository/master/profiles/plugin/templates/grailsCentralPublishing.gradle'
apply from: 'https://raw.githubusercontent.com/grails/grails-profile-repository/master/profiles/plugin/templates/bintrayPublishing.gradle'

version '0.1'
group 'org.grails.plugins'

bintray {
    pkg {
        userOrg = '<your bintray username>'
        repo = 'plugins'
        name = "org.grails.plugins:$project.name"
        desc = "Grails $project.name plugin"
        websiteUrl = "http://grails.org/plugin/$project.name"
        issueTrackerUrl = "https://github.com/<username>/grails-$project.name/issues"
        vcsUrl = "https://github.com/<username>/grails-$project.name"
        licenses = ['Apache-2.0']
        version {
            attributes = ['grails-plugin': "org.grails.plugins:$project.name"]
            name = project.version
        }
    }
}

in your case no value userOrg

is set (userOrg is used grails

) so you are not allowed to upload tohttps://bintray.com/grails/plugins/...

Alternatively, you can check https://raw.githubusercontent.com/grails/grails-profile-repository/master/profiles/plugin/templates/bintrayPublishing.gradle

to see the complete bintray configuration.

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