[jira] [Assigned] (BEAM-10661) Java quickstart using Gradle doesn't work

["Beam JIRA Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-10661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Beam JIRA Bot reassigned BEAM-10661:
------------------------------------

    Assignee:     (was: David Huntsperger)

> Java quickstart using Gradle doesn't work
> -----------------------------------------
>
>                 Key: BEAM-10661
>                 URL: https://issues.apache.org/jira/browse/BEAM-10661
>             Project: Beam
>          Issue Type: Bug
>          Components: website
>            Reporter: Marcus Truscello
>            Priority: P3
>              Labels: documentation, quickstart, stale-assigned
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> As written, the Java quickstart using Gradle doesn't work.  The issue is that the {{execute}} task created in step 2 makes it so that the {{exec.args}} define is required for every task (including build!), otherwise a NullPointerException is thrown.
>  
> Example output:
>  
> {code:java}
> ~/word-count-beam$ gradle build
> FAILURE: Build failed with an exception.
> * Where:
> Build file '/Users/username/word-count-beam/build.gradle' line: 56
> * What went wrong:
> A problem occurred evaluating root project 'word-count-beam'.
> > java.lang.NullPointerException (no error message)
> * Try:
> Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
> * Get more help at https://help.gradle.org
> BUILD FAILED in 582ms
> {code}
>  
> Where line 56 of my build.gradle file is the split command in the execute task:
> {code:java}
>     52	task execute (type:JavaExec) {
>     53	        main = System.getProperty("mainClass")
>     54	        classpath = sourceSets.main.runtimeClasspath
>     55	        systemProperties System.getProperties()
>     56	        args System.getProperty("exec.args").split()
>     57	}
> {code}
>  
> Running with an empty exec.args fixes the issue:
> {code:java}
> ~/word-count-beam$ gradle build -Dexec.args=""
> Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
> Use '--warning-mode all' to show the individual deprecation warnings.
> See https://docs.gradle.org/6.5.1/userguide/command_line_interface.html#sec:command_line_warnings
> BUILD SUCCESSFUL in 782ms
> 4 actionable tasks: 4 up-to-date
> {code}



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