異常信息如下：
Fatal Error: Unable to find package java.lang in classpath or bootclasspath
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] An unknown compilation problem occurred
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.612 s
[INFO] Finished at: 2020-07-01T16:40:55+08:00
[INFO] Final Memory: 15M/314M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project admin: Compilation failure
[ERROR] An unknown compilation problem occurred
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
Linux下maven打包遇到的異常，檢查發現是因爲<bootclasspath>${java.home}/lib/rt.jar;${java.home}/lib/jce.jar</bootclasspath> 這個配置問題，中間的分號“；”改爲“：”，重新打包就正常了。
注意：maven 中bootclasspath多個jar包時，在windows下用;分隔,linux下用:分隔。
