help using jbang info classpath - usage for external programs with multiple deps

[alexanderankin]

I was reading this tweet which contains the following example:

java -cp `jbang info classpath com.opencsv:opencsv:4.1` blah.java

and i was trying to figure out how to make it so that i could specify multiple dependencies. This seems to work:

jbang --deps org.bouncycastle:bcprov-jdk15on:1.68,org.apache.commons:commons-lang3:3.12.0 -i

but this does not:

jbang info classpath --deps org.bouncycastle:bcprov-jdk15on:1.68,org.apache.commons:commons-lang3:3.12.0
[jbang] [ERROR] Missing required parameter: '<scriptOrFile>'
[jbang] Run with --verbose for more details

not sure what i am missing, this might not be the intended use case: was trying to shorten the list of apt packages my productivity depends on and see if i can close the gap with jbang - basically it was an apt java package which depended on a couple other libraries, so i figured, why not just write a little jbang wrapper around it, but can't seem to figure out printing out multiple deps with the info classpath sub command.

[maxandersen]

Remove the --deps. Then it should work.

[alexanderankin]

Thanks for reading my post! When I do that I think it tries to look up the artifact as one thing:

output

jbang info classpath --verbose org.bouncycastle:bcprov-jdk15on:1.68,org.apache.commons:commons-lang3:3.12.0
[jbang] jbang version 0.102.0
[jbang] Repositories: mavencentral=https://repo1.maven.org/maven2/
[jbang] Resolving dependencies...
[jbang]    org.bouncycastle:bcprov-jdk15on:1.68,org.apache.commons
[jbang]    org.bouncycastle:bcprov-jdk15on:1.68,org.apache.commons-commons-lang3:3.12.0
[jbang] [ERROR] Could not resolve dependencies: Could not find artifact org.bouncycastle:bcprov-jdk15on:jar:commons-lang3:3.12.0:1.68,org.apache.commons in mavencentral (https://repo1.maven.org/maven2/)
dev.jbang.cli.ExitException: Could not resolve dependencies: Could not find artifact org.bouncycastle:bcprov-jdk15on:jar:commons-lang3:3.12.0:1.68,org.apache.commons in mavencentral (https://repo1.maven.org/maven2/)
        at dev.jbang.dependencies.ArtifactResolver.resolve(ArtifactResolver.java:226)
        at dev.jbang.dependencies.DependencyUtil.resolveDependencies(DependencyUtil.java:112)
        at dev.jbang.dependencies.DependencyResolver.resolve(DependencyResolver.java:80)
        at dev.jbang.source.ProjectBuilder.resolveDependency(ProjectBuilder.java:543)
        at dev.jbang.source.resolvers.GavResourceResolver.resolve(GavResourceResolver.java:34)
        at dev.jbang.source.ResourceResolver.resolve(ResourceResolver.java:32)
        at dev.jbang.source.resolvers.CombinedResourceResolver.lambda$resolve$0(CombinedResourceResolver.java:27)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
        at java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:1002)
        at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129)
        at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527)
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
        at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
        at java.base/java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:647)
        at dev.jbang.source.resolvers.CombinedResourceResolver.resolve(CombinedResourceResolver.java:29)
        at dev.jbang.source.resolvers.AliasResourceResolver.resolve(AliasResourceResolver.java:37)
        at dev.jbang.source.ResourceResolver.resolve(ResourceResolver.java:52)
        at dev.jbang.source.ProjectBuilder.resolveChecked(ProjectBuilder.java:286)
        at dev.jbang.source.ProjectBuilder.build(ProjectBuilder.java:281)
        at dev.jbang.cli.BaseInfoCommand.getInfo(Info.java:193)
        at dev.jbang.cli.ClassPath.doCall(Info.java:235)
        at dev.jbang.cli.BaseCommand.call(BaseCommand.java:136)
        at dev.jbang.cli.BaseCommand.call(BaseCommand.java:20)
        at picocli.CommandLine.executeUserObject(CommandLine.java:1953)
        at picocli.CommandLine.access$1300(CommandLine.java:145)
        at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2358)
        at picocli.CommandLine$RunLast.handle(CommandLine.java:2352)
        at dev.jbang.cli.JBang$3.handle(JBang.java:147)
        at dev.jbang.cli.JBang$3.handle(JBang.java:142)
        at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179)
        at picocli.CommandLine$RunLast.execute(CommandLine.java:2316)
        at picocli.CommandLine.execute(CommandLine.java:2078)
        at dev.jbang.Main.main(Main.java:14)
Caused by: org.eclipse.aether.resolution.DependencyResolutionException: Could not find artifact org.bouncycastle:bcprov-jdk15on:jar:commons-lang3:3.12.0:1.68,org.apache.commons in mavencentral (https://repo1.maven.org/maven2/)
        at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:374)
        at dev.jbang.dependencies.ArtifactResolver.resolve(ArtifactResolver.java:209)
        ... 34 more
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact org.bouncycastle:bcprov-jdk15on:jar:commons-lang3:3.12.0:1.68,org.apache.commons in mavencentral (https://repo1.maven.org/maven2/)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:431)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:235)
        at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:357)
        ... 35 more
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.bouncycastle:bcprov-jdk15on:jar:commons-lang3:3.12.0:1.68,org.apache.commons in mavencentral (https://repo1.maven.org/maven2/)
        at org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:48)
        at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:401)
        at org.eclipse.aether.util.concurrency.RunnableErrorForwarder.lambda$wrap$0(RunnableErrorForwarder.java:73)
        at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:669)
        at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:290)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:408)
        ... 37 more
[jbang] If you believe this a bug in jbang, open an issue at https://github.com/jbangdev/jbang/issues

[alexanderankin]

I just realized this works, with duplicates

jbang info classpath --deps org.bouncycastle:bcprov-jdk15on:1.68 org.apache.commons:commons-lang3:3.12.0

[quintesse]

I just realized this works, with duplicates

Thanks for pointing that out @alexanderankin ! I just fixed this in #1559 which should be in the next release of Jbang.