On 8/23/16, 6:37 PM, Jonathan Gibbons wrote:
David,
Are you being affected by javac's long-standing policy of implicit compilation?
This is why I ask the list :-)
No, I was not aware of this behavior, but will play with it now.
Regardless of how I get there - I am pretty sure I need two "modules", one
"real" one, and a test module - one that contains everything including the shim adapters.
thanks Jon.
Dave
If ListShim.java references other classes, and those classes either only exist
on the module source path, or are newer on the module source path, then they
will be compiled into the output directory as well.
You can disable this behavior with javac's -implicit option:
-implicit:{none,class} Specify whether or not to generate class files
for implicitly referenced files
-- Jon
On 08/23/2016 01:57 PM, David Hill wrote:
I am trying to understand module compilation using a trivial set of classes. These comprise a
"module" of two classes, a test class, and a "shim" test class. (The shim is an
adapter used for 'white box' style tests).
On top of this, I am trying this with Gradle 3.
So far, I have made some interesting progress. For the "simple" case, Gradle 3
seems to be handling the required tasks nicely. A 'simple' module and set of public api
test classes works without much effort. Certainly Gradle has a few more fixes to go, for
example its insistence on stuffing
-sourcepath /some/empty/directory
in some compilations, which collides with my addition of --module-source-path
Mostly however, I have just be able to tack on additional JDK 9 arguments.
I am currently trying to understand how I can best compile my shim classes. In
my current build, I perform a non-modular build of the module classes, and then
the shim classes, and then combine the sum of them together and call it a
module :-) This is a stopgap until we can rework to create a proper modular
build.
The item that currently puzzles me is an invocation of javac (b132) with a list
of a single file to be compiled that ends up compiling everything within the
module-source-path. I would have expected that only the listed files would be
compiled. Below is the extracted compile line (with -sourcepath removed).
Any thoughts or suggestions are welcome.
Anyone else interested in my Gradle module quickstart demo let me know off list
and I will point you to a copy when I get past this hump.
/Users/ddhill/shared/jdk9/osx-x64/jdk-9.jdk/Contents/Home//bin/javac -verbose \
-d \
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims \
-g \
-release \
9 \
--module-path
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/main/dave
\
--add-modules dave \
--module-source-path
'/Users/ddhill/shared/gradle/module-quickstart/modules/*/src/{main,test}/{java,module-info}'
\
-classpath \
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/test:/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/resources/test:/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/main:/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/resources/main:/Users/ddhill/.gradle/caches/modules-2/files-2.1/junit/junit/4.12/2973d150c0dc1fefe998f834810d68f278ea58ec/junit-4.12.jar:/Users/ddhill/.gradle/caches/modules-2/files-2.1/org.hamcrest/hamcrest-core/1.3/42a25dc3219429f0e5d060061f71acb49bf010a0/hamcrest-core-1.3.jar
\
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/src/test/java/org/dave/ListShim.java
\
-XDuseUnsharedTable=true
and yet the result is more classes than the ListShim that was listed:
[ddhill module-quickstart]$ find
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims/dave
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims/dave/module-info.class
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims/dave/org
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims/dave/org/dave
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims/dave/org/dave/List.class
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims/dave/org/dave/ListShim.class
/Users/ddhill/shared/gradle/module-quickstart/modules/dave/build/classes/shims/dave/org/dave/Person.class
--
David Hill<david.h...@oracle.com>
Java Embedded Development
"A man's feet should be planted in his country, but his eyes should survey the
world."
-- George Santayana (1863 - 1952)
