This directory contains a series of directories that represents the evolving
state of a small set of modules, A, B, and C, where the dependency graph
looks like this:
Each stage marks a time when a new version of one or more of the modules has
been released. Each stage directory contains an image of the dependency tree
that includes versions specific to that stage. In later stages (stage2/ and
stage3), version conflicts arrise. These conflicts are either manifested as a
runtime exception or a compile time exception, depending on the build tool used
(either Maven or Gradle in this example) and how the build is configured.
Each stage depends on the build output previous stages (irrespective of build
tool). Module C contains a class with a main method, and each build tool is
configured to run it on command, as described below.
To build and run, start in stage*/ and follow these steps:
$ mvn install ... $ cd C
Next, to run the example,
$ mvn package appassembler:assemble ... maven/stage1/C$ ./target/appassembler/bin/C
For stages 2 and 3, running C should cause runtime exceptions.
To build and run, start in stage*/ and follow these steps:
In the A/ and B/ directories (when they're present) run:
$ gradle pTML
Note that pTML is short for publishToMavenLocal.
Go to the C/ directory and run the C#main by typing
$ gradle run
For stages 2 and 3, the build should fail.