I do remember experiencing a similar problem at some point while working on the unit tests.
I don’t remember how it got resolved. Could it be an environmental issue? Maybe other people on this list have also seen this issue and can shed some light? (I think it’s a general Groovy question, not something particular to CliBuilder.) Remko (Shameless plug) Every java main() method deserves http://picocli.info > On Sep 12, 2018, at 13:40, Remko Popma <remko.po...@gmail.com> wrote: > > Kevin, that’s strange, there are working unit tests that do exactly the > same... > For example: > > https://github.com/apache/groovy/blob/GROOVY_2_5_X/subprojects/groovy-cli-picocli/src/test/groovy/groovy/cli/picocli/CliBuilderTest.groovy#L794 > > >> On Wed, Sep 12, 2018 at 12:52 Kevin Perkins <kevin.perk...@kp.org> wrote: >> Hello, >> >> I think I've found a bug with groovy.cli.picocli.CliBuilder as of Groovy >> 2.5.2. I didn't find this particular issue in JIRA. I figured I'd ask here. >> The parseFromSpec method of groovy.cli.picocli.CliBuilder seems to always >> return a LinkedHashMap instead of the expected type (the class given as the >> first argument). The source my IDE shows me for this method has "cliOptions >> as T" as the last line in the method. I think that the problem is T is >> erased when the method is compiled and so the "as T" does (effectively) >> nothing. I think the correct code would be "cliOptions.asType(optionsClass)". >> >> Environment information: >> /* -------------- groovy --version ------------------------------------ */ >> Groovy Version: 2.5.2 JVM: 1.8.0_172 Vendor: Oracle Corporation OS: Windows 7 >> >> /* --------------- IDE version info ------------------------------------- */ >> IntelliJ IDEA 2018.2.3 (Ultimate Edition) >> Build #IU-182.4323.46, built on September 3, 2018 >> JRE: 1.8.0_152-release-1248-b8 amd64 >> JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o >> Windows 7 6.1 >> >> The following code demonstrates the issue: >> /* ------------------------ Begin Example Code ------------------------ */ >> import groovy.cli.Option >> import groovy.cli.picocli.CliBuilder >> >> class CliBuilderBug { >> interface CliArguments { >> @Option(longName='dummy') int dummy() >> } >> >> static void main(String[] args) { >> CliBuilder builder = new CliBuilder() >> >> def ok = builder.parseFromSpec(CliArguments, args) as CliArguments >> assert ok instanceof CliArguments // ok >> println "Using 'as' works." >> >> def notOk = builder.parseFromSpec(CliArguments, args) >> assert notOk instanceof LinkedHashMap // this assertion is true >> assert notOk instanceof CliArguments // fails >> println 'We never get here.' >> } >> } >> /* ------------------------ End Example Code ------------------------ */ >> >> I hope this is helpful, and thank you for your time. >> - Kevin Perkins >> NOTICE TO RECIPIENT: If you are not the intended recipient of this e-mail, >> you are prohibited from sharing, copying, or otherwise using or disclosing >> its contents. If you have received this e-mail in error, please notify the >> sender immediately by reply e-mail and permanently delete this e-mail and >> any attachments without reading, forwarding or saving them. Thank you. >>
