java环境： java version "10.0.1" ,启动sqoop-shell端或者是sqoop-client端异常，异常如下：
[root@hadoop1 home]# sqoop2-shell
Setting conf dir: /home/sqoop-1.99.7/bin/../conf
Sqoop home directory: /home/sqoop-1.99.7
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass$3$1 (file:/home/sqoop-1.99.7/shell/lib/groovy-all-2.4.0.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass$3$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Exception in thread "main" java.lang.reflect.InaccessibleObjectException: Unable to make jdk.internal.loader.ClassLoaders$AppClassLoader(jdk.internal.loader.ClassLoaders$PlatformClassLoader,jdk.internal.loader.URLClassPath) accessible: module java.base does not "opens jdk.internal.loader" to unnamed module @7b69c6ba
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:337)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:281)
......
猜测：看报错是关于jdk的问题，可能是由于jdk与sqoop2不兼容导致
解决方法：跟换JDK版本如下
解决结果：成功启动sqoop-client