参考: Fedora 21 mostly working but NullPointerException at Karaf shell 在使用ODL的时候,安装功能组件时出现: Error executing command: java.lang.NullPointerException 查看本机java配置,是1.8.0版本的: java version "1.8.0_72" Java(TM) SE Runtime Environment (build 1.8.0_72-b15)…
Tomcat不失为一个好的开发学习容器,但使用Oracle 11g自带的JDBC驱动ojdbc6.jar和JDK6一起运行的时候,特别是和spring框架一起使用会报错:SEVERE: Error while registering Oracle JDBC Diagnosability MBean. javax.management.MalformedObjectNameException: Invalid character ' ' in value part of property at j…
1. 报错如下: [ERROR] Error executing Maven. [ERROR] 1 problem was encountered while building the effective settings [FATAL] Non-parseable settings D:\ChengXu\maven\apache-maven-3.5.2\conf\settings.xml: end tag name </settings> must match start tag name…