Native support for JCommander

[jvalkeal]

While trying to get spring-shell-samples to work with spring-native there's an error with startup which seems to be around reflective dance happening in JCommanderParameterResolver.

We can remove this particular command from samples to give time to make things work while getting most parts of a sample to work with graal.

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'exampleApplicationRunnerConfiguration': Unsatisfied dependency expressed through field 'shell'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shell': Invocation of init method failed; nested exception is org.springframework.shell.ParameterResolverMissingException: No parameter resolver found for parameter with index 0 (named 'args') of public java.lang.String org.springframework.shell.samples.jcommander.JCommanderCommands.jcommander(org.springframework.shell.samples.jcommander.Args) 
	at org.springframework.aot.beans.factory.InjectedFieldResolver.resolve(InjectedFieldResolver.java:50) ~[na:na]
	at org.springframework.aot.beans.factory.InjectedElementResolver.resolve(InjectedElementResolver.java:19) ~[na:na]
	at org.springframework.aot.beans.factory.InjectedElementResolver.invoke(InjectedElementResolver.java:37) ~[na:na]
	at org.springframework.shell.samples.ContextBootstrapInitializer.lambda$registerExampleApplicationRunnerConfiguration$1(ContextBootstrapInitializer.java:16) ~[na:na]
	at org.springframework.aot.beans.factory.ThrowableFunction.apply(ThrowableFunction.java:18) ~[na:na]
	at org.springframework.aot.beans.factory.BeanDefinitionRegistrar.lambda$instanceSupplier$0(BeanDefinitionRegistrar.java:97) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.obtainFromSupplier(AbstractAutowireCapableBeanFactory.java:1249) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1191) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[na:na]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[na:na]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[na:na]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[na:na]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[na:na]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953) ~[na:na]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[na:na]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[na:na]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:730) ~[spring-shell-samples:2.6.2]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412) ~[spring-shell-samples:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) ~[spring-shell-samples:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) ~[spring-shell-samples:2.6.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1290) ~[spring-shell-samples:2.6.2]
	at org.springframework.shell.samples.SpringShellSample.main(SpringShellSample.java:38) ~[spring-shell-samples:3.0.0-SNAPSHOT]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shell': Invocation of init method failed; nested exception is org.springframework.shell.ParameterResolverMissingException: No parameter resolver found for parameter with index 0 (named 'args') of public java.lang.String org.springframework.shell.samples.jcommander.JCommanderCommands.jcommander(org.springframework.shell.samples.jcommander.Args) 
	at org.springframework.aot.context.annotation.InitDestroyBeanPostProcessor.invokeInitMethod(InitDestroyBeanPostProcessor.java:79) ~[na:na]
	at org.springframework.aot.context.annotation.InitDestroyBeanPostProcessor.postProcessBeforeInitialization(InitDestroyBeanPostProcessor.java:65) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:440) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[na:na]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[na:na]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[na:na]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[na:na]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[na:na]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[na:na]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[na:na]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389) ~[na:na]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) ~[na:na]
	at org.springframework.aot.beans.factory.InjectedFieldResolver.resolve(InjectedFieldResolver.java:43) ~[na:na]
	... 22 common frames omitted
Caused by: org.springframework.shell.ParameterResolverMissingException: No parameter resolver found for parameter with index 0 (named 'args') of public java.lang.String org.springframework.shell.samples.jcommander.JCommanderCommands.jcommander(org.springframework.shell.samples.jcommander.Args) 
	at org.springframework.shell.Shell.lambda$validateParameterResolvers$5(Shell.java:335) ~[spring-shell-samples:3.0.0-SNAPSHOT]
	at java.util.Optional.orElseThrow(Optional.java:408) ~[na:na]
	at org.springframework.shell.Shell.lambda$validateParameterResolvers$6(Shell.java:335) ~[spring-shell-samples:3.0.0-SNAPSHOT]
	at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) ~[na:na]
	at java.util.stream.IntPipeline$1$1.accept(IntPipeline.java:180) ~[na:na]
	at java.util.stream.Streams$RangeIntSpliterator.forEachRemaining(Streams.java:104) ~[na:na]
	at java.util.Spliterator$OfInt.forEachRemaining(Spliterator.java:699) ~[na:na]
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[na:na]
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[na:na]
	at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) ~[na:na]
	at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) ~[na:na]
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:na]
	at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) ~[na:na]
	at org.springframework.shell.Shell.validateParameterResolvers(Shell.java:325) ~[spring-shell-samples:3.0.0-SNAPSHOT]
	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
	at org.springframework.shell.Shell.gatherMethodTargets(Shell.java:102) ~[spring-shell-samples:3.0.0-SNAPSHOT]
	at java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
	at org.springframework.aot.context.annotation.InitDestroyBeanPostProcessor.invokeMethod(InitDestroyBeanPostProcessor.java:137) ~[na:na]
	at org.springframework.aot.context.annotation.InitDestroyBeanPostProcessor.invokeInitMethod(InitDestroyBeanPostProcessor.java:76) ~[na:na]
	... 35 common frames omitted