为什么我的 jar 库中有未解析的符号？

Question

Gradle v2.9 (old I know, but upgrading is another project)

I see How to create my own java library(API)? and I'm doing something similar.

I'm pretty familiar with JARs and compiling Java code. I also have Maven experience, and I'm trying to do this in Gradle, but the fundamentals should be the same.

I want to create a library, which includes other libraries. So I have this build.gradle file

myLib/build.gradle:
dependencies {
  compile "com.someDomain:other-lib:1.0.0"
}

I can build myLib-1.1.0.jar with no issues, and deploy it to my repo as

artifactId: myLib
groupId: com.myDomain
version: 1.1.0

Now I want to use myLib.jar to build another component, myComp.war , so I have this

myComp/build.gradle:
dependencies {
  compile "com.myDomain:myLib:1.1.0"
}

So my dependency tree is as follows, meaning, myComp uses the myLib library, which in turn uses the other-lib library. Straight-forward enough.

com.myDomain:myComp:1.2.0
+--- com.myDomain:myLib:1.1.0
|    +--- com.someDomain:other-lib:1.0.0  <---- the symbol is in this library

and when I run ./gradlew build for myComp I see both the myLib-1.1.0.jar and other-lib-1.0.0.jar artifacts being downloaded from my central repo, and stored in my ~/.gradle cache.However, I get an symbol not found error for a symbol that's in other-lib.jar which was included in the myLib.jar file. Makes sense?

What am I missing?

Answer 1

Because building a jar only archives the files in that project's source tree, it does NOT include jars that it depends on for compilation. To package other jars within a jar, like I want to do, follow How to include dependencies in a jar? from the Gradle forum.