What happened：DongTai engine installation failed

[Luffio]

OS：Ubuntu 20.04.2 LTS

JDK：openjdk version "1.8.0_292"
OpenJDK Runtime Environment (build 1.8.0_292-8u292-b10-0ubuntu1~20.04-b10)
OpenJDK 64-Bit Server VM (build 25.292-b10, mixed mode)

Run：java -javaagent:/tmp/agent.jar -Dproject.name=*** -jar ***.jar

Error：[cn.huoxian.dongtai.iast] DongTai engine installation failed, please contact staff for help.
java.lang.ClassNotFoundException: com.secnium.iast.core.AgentEngine
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at com.secnium.iast.agent.IastClassLoader.loadClass(IastClassLoader.java:66)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at com.secnium.iast.agent.manager.EngineManager.install(EngineManager.java:178)
at com.secnium.iast.agent.monitor.MonitorDaemonThread.startEngine(MonitorDaemonThread.java:46)
at com.secnium.iast.agent.monitor.MonitorDaemonThread.run(MonitorDaemonThread.java:25)
at java.lang.Thread.run(Thread.java:748)

[exexute]

Troubleshooting method see issue #85