If a dependency on another project is found, don't parse its
POM again, but instead use the model we already have in memory.
This saves a large amount of time and memory for builds that have
lots of subprojects and dependencies between them.
The approach was directly copied from DefaultArtifactDescriptorReader,
which does the same optimization.
This closes#244
Updated to correctly map the optional flag of Maven model dependencies to
Aether dependencies. Prior to this change all managed dependencies implicitly
had the optional flag set to 'false' leading to Aether managing that flag to
'false' on all managed dependencies when transitive.
o Updated to fix parent version range resolution broken since 3.2.3 and to
remove parent version range resolution logic obsolete since Maven
3.2.3 which changed the initialization of MavenProject instances.
o Updated local parent resolution to behave the same way remote parent
resolution behaves. When referencing a parent using version ranges,
inheriting the version or using version expressions should not be supported.
It has been implemented that way for remote parent resolution as it got
introduced in Maven 3.2.2. For local parent resolution the version in parent
declarations had been ignored completely as of Maven 3.3.0 due to commit
be3fb20032 removing all local parent version
validation. Work on fixing this is tracked by MNG-5840 released with Maven
3.3.9. This commit adds the final missing bits to make local and remote parent
resolution behave the same way as much as possible. As an exception, remote
parent resolution still is a bit more strict than local parent resolution due
to a different API in use. When resolving a parent from a repository using
version ranges, the ModelBuilder verifies the range in use to declare an upper
bound. When resolving a parent locally using version ranges, those ranges are
not required to declare an upper bound because the API in use does not support
querying that. Authoring a POM relying on this difference should be considered
a bug.
o Added test cases to maven-core testing parent version range resolution for
local and remote parent models.