Handle JaCoCo CLI jars without runnable manifests

Author: shai-almog

scripts/run-android-instrumentation-tests.sh

@@ -408,7 +408,15 @@ if [ -n "$COVERAGE_EXEC" ] && [ -f "$COVERAGE_EXEC" ]; then
       COVERAGE_XML="$COVERAGE_SITE_DIR/jacoco.xml"
       JACOCO_LOG="$COVERAGE_ARTIFACT_DIR/jacoco-report.log"
       ra_log "Generating JaCoCo report for Android port sources"
-      if "$JAVA17_BIN" -jar "$JACOCO_CLI_JAR" report "$COVERAGE_EXEC" \
+      JACOCO_CMD=("$JAVA17_BIN")
+      JACOCO_MAIN_CLASS="org.jacoco.cli.internal.Main"
+      if unzip -p "$JACOCO_CLI_JAR" META-INF/MANIFEST.MF 2>/dev/null | grep -qi 'Main-Class:'; then
+        JACOCO_CMD+=("-jar" "$JACOCO_CLI_JAR")
+      else
+        ra_log "WARN: JaCoCo CLI jar missing Main-Class manifest; using explicit entry point"
+        JACOCO_CMD+=("-cp" "$JACOCO_CLI_JAR" "$JACOCO_MAIN_CLASS")
+      fi
+      if "${JACOCO_CMD[@]}" report "$COVERAGE_EXEC" \
         --name "CodenameOneAndroidPort" \
         "${CLASSFILE_ARGS[@]}" \
         --sourcefiles "$REPO_ROOT/Ports/Android/src" \