java.lang.NullPointerException: This exception has no message.

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via GitHub by Amous-th
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This exception has no message.
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This exception has no message.
via cnblogs.com by Unknown author, 8 months ago
This exception has no message.
java.lang.NullPointerException:
at com.alibaba.druid.pool.vendor.MySqlValidConnectionChecker.(MySqlValidConnectionChecker.java:48)
at com.alibaba.druid.pool.DruidDataSource.initValidConnectionChecker(DruidDataSource.java:945)
at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:660)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)

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