在尝试使用jProfiler监控远程Linux上的Tomcat时遇到错误提示'Invalid license key. Aborting.'，通过查找终端提示发现是许可证密钥问题。解决方案包括：将Windows的`config.xml`中的许可证密钥复制到Linux对应配置文件，修改TOMCAT启动文件`catalina.sh`加入jProfiler相关参数，并重启Tomcat，最后在Windows客户端成功连接。
jprofiler监控Tomcat，连接时出现错误提示：
The JVM might have terminated unexpectedly.
If the JVM has crashed,please try the following strategies:
* Reduce the -Xmx value of the profiled application
* Change your profiling settings(e.g. from dynamic instrumentation to sampling)
I tried for a long time not depriving the line,
Later, it found a close look at Terminal prompt "Invalid license key".
JProfiler> Protocol version 25
JProfiler> Using JVMTI
JProfiler> JVMTI version 1.1 detected.
JProfiler> 32-bit library
JProfiler> Listening on port: 3175
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