ci: fix paths for nightly sdk-platform-java builds (#12338)

* The nightly sdk-platform-java tests should run nightly regardless of
whether the last commit touched that folder. Thus we remove the filter
that was added during migration
* The nightly test is now scoped to just the sdk-platform-java test, but
we need to install the necessary dependencies first

Tested with workflow_dispatch:
https://github.com/googleapis/google-cloud-java/actions/runs/23818326376

Fixes #12206

Author: chingor13

.github/workflows/sdk-platform-java-nightly.yaml

@@ -6,24 +6,8 @@ on:
 defaults:
   run:
     shell: bash
-env:
-  BUILD_SUBDIR: sdk-platform-java
 jobs:
-  filter:
-    runs-on: ubuntu-latest
-    outputs:
-      library: ${{ steps.filter.outputs.library }}
-    steps:
-    - uses: actions/checkout@v4
-    - uses: dorny/paths-filter@v3
-      id: filter
-      with:
-        filters: |
-          library:
-            - 'sdk-platform-java/**'
   nightly:
-    needs: filter
-    if: ${{ needs.filter.outputs.library == 'true' }}
     strategy:
       fail-fast: false
       matrix:
@@ -39,8 +23,15 @@ jobs:
           distribution: temurin
           cache: maven
       - run: mvn -version
+      - name: Install all modules first
+        shell: bash
+        run: .kokoro/build.sh
+        env:
+          BUILD_SUBDIR: sdk-platform-java
+          JOB_TYPE: install
       - name: Install
         run: mvn install --errors --batch-mode --no-transfer-progress -Dcheckstyle.skip -Dfmt.skip
+        working-directory: sdk-platform-java
       - name: Create issue if previous step fails
         if: ${{ failure() }}
         env:
@@ -50,8 +41,6 @@ jobs:
             --title "Nightly build for Java ${{ matrix.java }} on ${{ matrix.os }} failed." \
             --body "The build has failed : https://github.com/googleapis/google-cloud-java/actions/runs/${GITHUB_RUN_ID}"
   nightly-java8: # Compile with JDK 11. Run tests with JDK 8.
-    needs: filter
-    if: ${{ needs.filter.outputs.library == 'true' }}
     strategy:
       fail-fast: false
       matrix:
@@ -66,9 +55,12 @@ jobs:
           distribution: temurin
           cache: maven
       - run: mvn -version
-      - name: Install with Java 11
-        run: mvn install --errors --batch-mode --no-transfer-progress -Dcheckstyle.skip -DskipTests -Dfmt.skip
-
+      - name: Install all modules first
+        shell: bash
+        run: .kokoro/build.sh
+        env:
+          BUILD_SUBDIR: sdk-platform-java
+          JOB_TYPE: install
       - uses: actions/setup-java@v5
         with:
           java-version: 8
@@ -77,6 +69,7 @@ jobs:
       - name: Test with Java 8
         # Direct goal invocation ("surefire:test") prevents recompiling tests
         run: mvn surefire:test --errors --batch-mode --no-transfer-progress -Dfmt.skip
+        working-directory: sdk-platform-java
       - name: Create issue if previous step fails
         if: ${{ failure() }}
         env:

.kokoro/common.sh

@@ -422,6 +422,16 @@ function install_modules() {
       'sdk-platform-java/java-shared-dependencies/first-party-dependencies'
       'sdk-platform-java/java-shared-dependencies/third-party-dependencies'
       'sdk-platform-java/gapic-generator-java-bom'
+      'sdk-platform-java/java-iam/grpc-google-iam-v1'
+      'sdk-platform-java/java-iam/grpc-google-iam-v2'
+      'sdk-platform-java/java-iam/grpc-google-iam-v2beta'
+      'sdk-platform-java/java-iam/grpc-google-iam-v3'
+      'sdk-platform-java/java-iam/grpc-google-iam-v3beta'
+      'sdk-platform-java/java-iam/proto-google-iam-v1'
+      'sdk-platform-java/java-iam/proto-google-iam-v2'
+      'sdk-platform-java/java-iam/proto-google-iam-v2beta'
+      'sdk-platform-java/java-iam/proto-google-iam-v3'
+      'sdk-platform-java/java-iam/proto-google-iam-v3beta'
       'sdk-platform-java/java-core/google-cloud-core-bom'
       'sdk-platform-java/java-core/google-cloud-core'
       'sdk-platform-java/java-core/google-cloud-core-grpc'