Maven modules depends on JDK (langchain4j#1979)

## Issue
Simplify CI configuration

## Change

- Use maven profile to activate project modules, depending on active JDK
- Simplify CI configuration

This pull request includes several updates to the CI workflows and the
`pom.xml` file, primarily focusing on simplifying the Maven options and
restructuring module definitions. The most important changes include
replacing `included_modules` with `mvn_opts` in the workflow files and
updating the `pom.xml` to conditionally include the `langchain4j-jlama`
module based on the JDK version.

### CI Workflow Updates:

*
[`.github/workflows/main.yaml`](diffhunk://#diff-71cabc4177e41ea8f15a89eb65398fa8187739f68a2762706d84885cd8b2ddc3L37-R39):
Replaced `included_modules` with `mvn_opts` to simplify the Maven
command options.
[[1]](diffhunk://#diff-71cabc4177e41ea8f15a89eb65398fa8187739f68a2762706d84885cd8b2ddc3L37-R39)
[[2]](diffhunk://#diff-71cabc4177e41ea8f15a89eb65398fa8187739f68a2762706d84885cd8b2ddc3L62-R62)
[[3]](diffhunk://#diff-71cabc4177e41ea8f15a89eb65398fa8187739f68a2762706d84885cd8b2ddc3L73-R73)
*
[`.github/workflows/nightly.yaml`](diffhunk://#diff-e79198339eb3fcc6974b6912e52526068eab3b7952ed67d03276479a235eb58eL18-R20):
Made similar changes to replace `included_modules` with `mvn_opts` for
consistency across workflows.
[[1]](diffhunk://#diff-e79198339eb3fcc6974b6912e52526068eab3b7952ed67d03276479a235eb58eL18-R20)
[[2]](diffhunk://#diff-e79198339eb3fcc6974b6912e52526068eab3b7952ed67d03276479a235eb58eL45-R51)

### `pom.xml` Updates:

*
[`pom.xml`](diffhunk://#diff-9c5fb3d1b7e3b0f54bc5c4182965c4fe1f9023d449017cece3005d3f90e8e4d8L35):
Removed the `langchain4j-jlama` module from the default module list and
added it to a new profile activated only for JDK 21 and above.
[[1]](diffhunk://#diff-9c5fb3d1b7e3b0f54bc5c4182965c4fe1f9023d449017cece3005d3f90e8e4d8L35)
[[2]](diffhunk://#diff-9c5fb3d1b7e3b0f54bc5c4182965c4fe1f9023d449017cece3005d3f90e8e4d8R175-R183)

## General checklist
- [x] There are no breaking changes
- [ ] I have added unit and integration tests for my change
- [ ] I have manually run all the unit and integration tests in the
module I have added/changed, and they are all green
- [ ] I have manually run all the unit and integration tests in the
[core](https://github.com/langchain4j/langchain4j/tree/main/langchain4j-core)
and
[main](https://github.com/langchain4j/langchain4j/tree/main/langchain4j)
modules, and they are all green
- [ ] I have added/updated the
[documentation](https://github.com/langchain4j/langchain4j/tree/main/docs/docs)
- [ ] I have added an example in the [examples
repo](https://github.com/langchain4j/langchain4j-examples) (only for
"big" features)
- [ ] I have added/updated [Spring Boot
starter(s)](https://github.com/langchain4j/langchain4j-spring) (if
applicable)

.github/workflows/main.yaml

@@ -34,9 +34,9 @@ jobs:
           - 21
         include:
           - java_version: '17'
-            included_modules: '-pl !langchain4j-jlama'
+            mvn_opts: ''
           - java_version: '21'
-            included_modules: ''
+            mvn_opts: ''
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -59,7 +59,7 @@ jobs:
         run: |
           mvn -B -U -T8C test javadoc:aggregate \
             -Dgib.disable=false -Dgib.referenceBranch=__branch_before \
-            ${{ matrix.included_modules }}
+            ${{ matrix.mvn_opts }}
 
       - name: Integration test with JDK ${{ matrix.java_version }}
         ## allow builds to run only:
@@ -70,7 +70,7 @@ jobs:
         run: |
           mvn -B -U verify \
             -Dgib.disable=false -Dgib.referenceBranch=__branch_before \
-            ${{ matrix.included_modules }}
+            ${{ matrix.mvn_opts }}
         env:
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
           AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}

.github/workflows/nightly.yaml

@@ -15,9 +15,9 @@ jobs:
           - 21
         include:
           - java_version: '17'
-            included_modules: '-pl !langchain4j-jlama'
+            mvn_opts: ''
           - java_version: '21'
-            included_modules: ''
+            mvn_opts: ''
       max-parallel: 1
     runs-on: ubuntu-latest
     steps:
@@ -42,13 +42,13 @@ jobs:
           ## compile and verify javadocs on ALL modules
           mvn -B -U -T8C test javadoc:aggregate \
             --fail-at-end \
-            ${{ matrix.included_modules }}
+            ${{ matrix.mvn_opts }}
           
           ## run tests for some modules
           mvn -B -U verify \
               --fail-at-end \
               -Dmaven.test.failure.ignore=true \
-              ${{ matrix.included_modules }}
+              ${{ matrix.mvn_opts }}
         env:
           ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
           AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}

pom.xml

@@ -32,7 +32,6 @@
         <module>langchain4j-cohere</module>
         <module>langchain4j-dashscope</module>
         <module>langchain4j-hugging-face</module>
-        <module>langchain4j-jlama</module>
         <module>langchain4j-jina</module>
         <module>langchain4j-local-ai</module>
         <module>langchain4j-mistral-ai</module>
@@ -173,6 +172,15 @@
     </reporting>
 
     <profiles>
+        <profile>
+            <id>jdk21</id>
+            <activation>
+                <jdk>[21,)</jdk>
+            </activation>
+            <modules>
+                <module>langchain4j-jlama</module>
+            </modules>
+        </profile>
         <profile>
             <id>openrewrite</id>
             <!-- `mvn -P openrewrite org.openrewrite.maven:rewrite-maven-plugin:run` -->