Fix declarative configuration example (#760)

Author: jaydeluca

.github/workflows/build.yml

@@ -42,15 +42,40 @@ jobs:
 
       - run: java -cp sdk-usage/build/libs/opentelemetry-examples-sdk-usage-0.1.0-SNAPSHOT-all.jar io.opentelemetry.sdk.example.ConfigureSpanProcessorExample
 
+  test-declarative-configuration-run:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - name: Set up JDK for running Gradle
+        uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1
+        with:
+          distribution: temurin
+          java-version: 17
+
+      - name: Set up gradle
+        uses: gradle/actions/setup-gradle@ac638b010cf58a27ee6c972d7336334ccaf61c96 # v4.4.1
+        with:
+          cache-read-only: ${{ github.event_name == 'pull_request' }}
+
+      - name: Run declarative-configuration
+        working-directory: declarative-configuration
+        run: |
+          export OTEL_EXPERIMENTAL_CONFIG_FILE=$(pwd)/otel-sdk-config.yaml
+          ../gradlew run
+
   # this is not a required check to avoid blocking pull requests if external links break
   markdown-link-check:
     uses: ./.github/workflows/reusable-markdown-link-check.yml
 
   required-status-check:
     needs:
       - build
+      - test-declarative-configuration-run
     runs-on: ubuntu-latest
     if: always()
     steps:
-      - if: needs.build.result != 'success'
-        run: exit 1
+      - if: >
+          needs.build.result != 'success' ||
+          needs.test-declarative-configuration-run.result != 'success'
+        run: exit 1

declarative-configuration/otel-sdk-config.yaml

@@ -1,12 +1,17 @@
 # See https://github.com/open-telemetry/opentelemetry-configuration for details on schema and examples
 
-file_format: "0.3"
+file_format: "1.0-rc.1"
 
 resource:
   attributes:
     - name: service.name
       value: file-configuration-example
 
+propagator:
+  composite:
+    - tracecontext:
+    - baggage:
+
 tracer_provider:
   processors:
     - batch:
@@ -23,9 +28,4 @@ meter_provider:
         instrument_type: histogram
       stream:
         aggregation:
-          drop:
-
-propagator:
-  composite:
-    - tracecontext
-    - baggage
+          drop: