[jira] [Assigned] (TINKERPOP-1962) GroovyTranslator doesn't handle empty maps

["stephen mallette (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TINKERPOP-1962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stephen mallette reassigned TINKERPOP-1962:
-------------------------------------------

    Assignee: stephen mallette

> GroovyTranslator doesn't handle empty maps
> ------------------------------------------
>
>                 Key: TINKERPOP-1962
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1962
>             Project: TinkerPop
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 3.3.2
>            Reporter: Dimitry Solovyov
>            Assignee: stephen mallette
>            Priority: Minor
>
> Bytecode queries that contain an empty map and lambdas fail because GroovyTranslator doesn't account for empty maps when [removing the last trailing comma|https://github.com/apache/tinkerpop/blob/3.3.2/gremlin-groovy/src/main/java/org/apache/tinkerpop/gremlin/groovy/jsr223/GroovyTranslator.java#L134].
> To reproduce:
> {code:java}
> gremlin> identity = new OneArgLambda('it.get()', 'gremlin-groovy')
> ==>lambda[it.get()]
> gremlin> bytecode = __.inject([:]).map(identity).asAdmin().getBytecode()
> ==>[[], [inject({}), map(lambda[it.get()])]]
> gremlin> client.submit(bytecode).all().get()
> org.apache.tinkerpop.gremlin.driver.exception.ResponseException: org.codehaus.groovy.control.MultipleCompilationErrorsException: 
> Script9.groovy: 1: expecting ')', found ']' @ line 1, column 31.
> gremlinscriptengine__g.inject(]).map({it.get()})
> ^
> 1 error
> {code}
>  



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