as.sh support jps crash. #2487

bin/as.sh

@@ -393,12 +393,32 @@ update_if_necessary()
     fi
 }
 
+# jps command may crash, so need to check it
+check_jps() {
+    "${JAVA_HOME}/bin/jps" > /dev/null 2>&1
+    local exit_code=$?
+    if [ $exit_code -ne 0 ]; then
+        echo "jps command failed with exit code ${exit_code}" >&2
+    fi
+    return $exit_code
+}
+
 call_jps()
 {
-    if [ "${VERBOSE}" = true ] ; then
-        "${JAVA_HOME}"/bin/jps -l -v
+    check_jps
+    local exit_code=$?
+    if [[ "$exit_code" -eq 0 ]]; then
+        # jps command is ok
+        local jps_command=("${JAVA_HOME}/bin/jps" "-l")
+        if [ "${VERBOSE}" = true ] ; then
+            jps_command=("${JAVA_HOME}/bin/jps" "-l" "-v")
+        fi
+        local jps_output=$("${jps_command[@]}")
+        echo "$jps_output"
     else
-        "${JAVA_HOME}"/bin/jps -l
+        # jps command failed, use ps and grep
+        ps_output=$(ps aux | grep java | grep -v grep | awk '{print $2" "$11}')
+        echo "$ps_output"
     fi
 }