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https://issues.apache.org/jira/browse/SCB-725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16538555#comment-16538555
 ] 

ASF GitHub Bot commented on SCB-725:
------------------------------------

wujimin commented on a change in pull request #799: [SCB-725] support get main 
class package when run with "java -jar xxx.jar
URL: 
https://github.com/apache/incubator-servicecomb-java-chassis/pull/799#discussion_r201332132
 
 

 ##########
 File path: 
foundations/foundation-common/src/main/java/org/apache/servicecomb/foundation/common/utils/JvmUtils.java
 ##########
 @@ -36,21 +42,50 @@ private JvmUtils() {
    * @return main class or null, never throw exception
    */
   public static Class<?> findMainClass() {
+    // 1.run with java -cp ......
+    //   command is main class and args
+    // 2.run with java -jar ......
+    //   command is jar file name and args
     String command = System.getProperty(SUN_JAVA_COMMAND);
     if (command == null || command.isEmpty()) {
       return null;
     }
 
-    // command is main class and args
-    String mainClass = command.trim().split(" ")[0];
+    String mainClassOrJar = command.trim().split(" ")[0];
+    String mainClass = readFromJar(mainClassOrJar);
+    if (mainClass == null || mainClass.isEmpty()) {
+      return null;
 
 Review comment:
   already print in "readFromJar"

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> support get main class package when run with "java -jar xxx.jar"
> ----------------------------------------------------------------
>
>                 Key: SCB-725
>                 URL: https://issues.apache.org/jira/browse/SCB-725
>             Project: Apache ServiceComb
>          Issue Type: Task
>          Components: Java-Chassis
>            Reporter: wujimin
>            Assignee: wujimin
>            Priority: Major
>




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