Fix #838: Add Android SDK compatibility check with AnimalSniffer

.github/workflows/main.yml

@@ -51,6 +51,9 @@ jobs:
     - name: Extract project Maven version
       id: projectVersion
       run: echo ::set-output name=version::$(./mvnw org.apache.maven.plugins:maven-help-plugin:3.2.0:evaluate -DforceStdout -Dexpression=project.version -q)
+    - name: Verify Android SDK Compatibility
+      if: matrix.java_version == '8'
+      run: ./mvnw -B -q -ff -ntp -DskipTests animal-sniffer:check
     - name: Deploy snapshot
       if: github.event_name != 'pull_request' && matrix.java_version == '8' && endsWith(steps.projectVersion.outputs.version, '-SNAPSHOT')
       env:

pom.xml

@@ -43,6 +43,13 @@
     <maven.compiler.source>1.6</maven.compiler.source>
     <maven.compiler.target>1.6</maven.compiler.target>
 
+   <!-- 16-Nov-2022, tatu: [core#838] Verify Android SDK compatibility.
+         Baseline compatibility:
+         * Jackson 2.13 compatible with Android SDK 19 and up
+      -->
+    <version.android.sdk>19</version.android.sdk>
+    <version.android.sdk.signature>0.5.0</version.android.sdk.signature>
+
     <osgi.export>com.fasterxml.jackson.core;version=${project.version},
 com.fasterxml.jackson.core.*;version=${project.version}
     </osgi.export>
@@ -142,6 +149,24 @@ com.fasterxml.jackson.core.*;version=${project.version}
         <groupId>de.jjohannes</groupId>
         <artifactId>gradle-module-metadata-maven-plugin</artifactId>
       </plugin>
+
+      <!-- 16-Nov-2022, tatu: [core#838] add verification of compatibility
+	   wrt Android SDK versions using AnimalSniffer with "gummy bears" signatures.
+           To be run from CI, but manually with:
+              mvn clean package animal-sniffer:check
+	-->
+      <plugin>
+	<groupId>org.codehaus.mojo</groupId>
+	<artifactId>animal-sniffer-maven-plugin</artifactId>
+	<version>1.22</version>
+	<configuration>
+          <signature>
+            <groupId>com.toasttab.android</groupId>
+            <artifactId>gummy-bears-api-${version.android.sdk}</artifactId>
+            <version>${version.android.sdk.signature}</version>
+          </signature>
+	</configuration>
+      </plugin>
     </plugins>
   </build>