Test databinding/viewbinding with Bazel 7.1.0

[arunkumar9t2]

Refine //tests/.. target to showcase databinding

Observations

When using Bazel 7.1.0 and associated android_tools, we get the following error

com.beust.jcommander.ParameterException: "-zipSourceOutput": couldn't convert "true " to a boolean
	at com.beust.jcommander.converters.BooleanConverter.convert(BooleanConverter.java:38)
	at com.beust.jcommander.converters.BooleanConverter.convert(BooleanConverter.java:28)
	at com.beust.jcommander.JCommander.convertValue(JCommander.java:1340)
	at com.beust.jcommander.ParameterDescription.addValue(ParameterDescription.java:249)
	at com.beust.jcommander.JCommander.processFixedArity(JCommander.java:920)
	at com.beust.jcommander.JCommander.processFixedArity(JCommander.java:901)
	at com.beust.jcommander.JCommander.parseValues(JCommander.java:731)
	at com.beust.jcommander.JCommander.parse(JCommander.java:363)
	at com.beust.jcommander.JCommander.parse(JCommander.java:342)
	at android.databinding.AndroidDataBinding.main(AndroidDataBinding.kt:67)
	at com.google.devtools.build.android.GenerateDatabindingBaseClassesAction.main(GenerateDatabindingBaseClassesAction.java:147)
	at com.google.devtools.build.android.ResourceProcessorBusyBox$Tool$13.call(ResourceProcessorBusyBox.java:142)
	at com.google.devtools.build.android.ResourceProcessorBusyBox.processRequest(ResourceProcessorBusyBox.java:237)
	at com.google.devtools.build.android.ResourceProcessorBusyBox.main(ResourceProcessorBusyBox.java:184)
Exception in thread "main" java.lang.NoSuchMethodError: 'void com.beust.jcommander.JCommander.usage(java.lang.StringBuilder)'
	at android.databinding.AndroidDataBinding.printUsageAndExit(AndroidDataBinding.kt:91)
	at android.databinding.AndroidDataBinding.main(AndroidDataBinding.kt:76)
	at com.google.devtools.build.android.GenerateDatabindingBaseClassesAction.main(GenerateDatabindingBaseClassesAction.java:147)
	at com.google.devtools.build.android.ResourceProcessorBusyBox$Tool$13.call(ResourceProcessorBusyBox.java:142)
	at com.google.devtools.build.android.ResourceProcessorBusyBox.processRequest(ResourceProcessorBusyBox.java:237)
	at com.google.devtools.build.android.ResourceProcessorBusyBox.main(ResourceProcessorBusyBox.java:184)

From a cursory look this seems to a dependency conflict between databinding's jcommander usage and Bazel's own jcommander version. Since everything is packaged into single android_tools.jar, the conflict occurs.

Workarounds

When using an older version of android_tools.jar (6.3.2) with Bazel 7.1.0, it seems we can overcome the error. This repo already uses 6.3.2 jars hence this specific issue does not occur here. However this is not recommended since there could be other mismatches and we should be using the same version of android_tools and Bazel when we migrate to 7.1.0.

Secondly the arg true does have a trailing space due to this not sure why in older versions boolean parsing appears succesfull