I am seeing, depending on the context of where I am in the build state,
different behavior of the Java object's class path.
Why this matters to me:
My build not only complies and packages Java source, but generates a large
number of xml configuration files with classnames for dependency injection.
I want to have the developer have the option of turning on a test that all
referenced classes are instantiatable.
Now when I access a class in any of my compilation dependencies I can get to
the Java.classpath object and insert the values into it.
Then any class in any of those jars can be invoked. Basically something like
this works, when invoked at the end of each subproject:
Java.classpath << all_libs # a little more complicated, but like this, and this
works
Java.java.lang.Class.forName(dep.class).asSubclass(Java.java.lang.Class.forName(dep.subclass))
# subclass is Object if not specified, this too works
So my dependency injection, which is distributed with the components can be
validated against any of the classes it is compiled against. However I want to
also distribute custom classes with the artifacts.
However, I cannot make each subproject have a circular dependency on :package,
which is what happens. To get the packaged components validated against the
configuration files, I need to arrange the dependencies such that the check is
done in a custom task that depends on :package, so that I can add in checks
with the created artifacts. There's no problem in setting the Java classpath,
but it is no longer honored, and classes that used to work, now don't.
If I do the following
puts "CLASSPATH"
p Java.classpath
Java.java.lang.System.out.println(Java.java.lang.System.getProperty("java.class.path"))
I get
CLASSPATH
[["org.apache.ant:ant:jar:1.8.0", "org.apache.ant:ant-launcher:jar:1.8.0",
"org.apache.ant:ant-trax:jar:1.8.0"],
["/Library/Ruby/Gems/1.8/gems/buildr-1.4.2/lib/buildr/java"],
["isis-toolkit/client-server.jar", "isis-toolkit/common.jar",
"isis-toolkit/document-aserver.jar", "isis-toolkit/document-client.jar",
"isis-toolkit/document-processor.jar", "isis-toolkit/netstore.jar",
"isis-toolkit/search-server.jar", "isis-toolkit/server.jar",
"isis-toolkit/software-server.jar", "isis-toolkit/transport-server.jar",
"isis-toolkit/user-server.jar", "isis-toolkit/util.jar"]]
/Users/esmiley/.m2/repository/org/apache/ant/ant/1.8.0/ant-1.8.0.jar:/Users/esmiley/.m2/repository/org/apache/ant/ant-launcher/1.8.0/ant-launcher-1.8.0.jar:/Users/esmiley/.m2/repository/org/apache/ant/ant-trax/1.8.0/ant-trax-1.8.0.jar:/Library/Ruby/Gems/1.8/gems/buildr-1.4.2/lib/buildr/java
In this new context, where it appears to need to be, it appears that I can set
the classpath until the cows come home in the Java object, but it is not being
honored. The classes that passed the test before now throw
NoClassDefFoundErrors.
--Ed
