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https://issues.apache.org/jira/browse/MGPG-87?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylwester Lachiewicz closed MGPG-87.
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Resolution: Duplicate
> NullPointerException when gpg not installed
> -------------------------------------------
>
> Key: MGPG-87
> URL: https://issues.apache.org/jira/browse/MGPG-87
> Project: Maven GPG Plugin
> Issue Type: Bug
> Affects Versions: 3.0.1
> Reporter: Dave Wichers
> Priority: Major
> Fix For: 3.1.0
>
>
> If you don't have gpg installed at all, you get the exception below when
> trying to use the mvn-gpg-plugin:
> Can you please update this to explain what the problem is and not throw an
> Exception? For example, "gpg must be installed to use this plugin."
> For other errors, error messages like: "no gpg.keyname/passphrase found in
> settings.xml", or no gpg key specified in settings.xml, or whatever, to help
> explain what the actual problem is.
> {*}Caused by{*}: java.lang.NullPointerException
> *at* org.apache.maven.plugins.gpg.GpgSigner.generateSignatureForFile
> ({*}GpgSigner.java:73{*})
> *at*
> org.apache.maven.plugins.gpg.AbstractGpgSigner.generateSignatureForArtifact
> ({*}AbstractGpgSigner.java:203{*})
> *at* org.apache.maven.plugins.gpg.GpgSignAttachedMojo.execute
> ({*}GpgSignAttachedMojo.java:143{*})
> *at* org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo
> ({*}DefaultBuildPluginManager.java:137{*})
> *at* org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2
> ({*}MojoExecutor.java:370{*})
> *at* org.apache.maven.lifecycle.internal.MojoExecutor.doExecute
> ({*}MojoExecutor.java:351{*})
> *at* org.apache.maven.lifecycle.internal.MojoExecutor.execute
> ({*}MojoExecutor.java:215{*})
> *at* org.apache.maven.lifecycle.internal.MojoExecutor.execute
> ({*}MojoExecutor.java:171{*})
> *at* org.apache.maven.lifecycle.internal.MojoExecutor.execute
> ({*}MojoExecutor.java:163{*})
> *at*
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
> ({*}LifecycleModuleBuilder.java:117{*})
> *at*
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
> ({*}LifecycleModuleBuilder.java:81{*})
> *at*
> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build
> ({*}SingleThreadedBuilder.java:56{*})
> *at* org.apache.maven.lifecycle.internal.LifecycleStarter.execute
> ({*}LifecycleStarter.java:128{*})
> *at* org.apache.maven.DefaultMaven.doExecute ({*}DefaultMaven.java:294{*})
> *at* org.apache.maven.DefaultMaven.doExecute ({*}DefaultMaven.java:192{*})
> *at* org.apache.maven.DefaultMaven.execute ({*}DefaultMaven.java:105{*})
> *at* org.apache.maven.cli.MavenCli.execute ({*}MavenCli.java:960{*})
> ...
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