1. 异常:javax.el.PropertyNotFoundException: Target Unreachable, 'ManageItemBackingBean' returned null 在引用EL#{bean.entity.property}中的managed bean时,有时会出现javax.el.PropertyNotFoundException:Target Unreachable exception。通常是在设置一个property或者触发一个bean ac ...

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  2. 一个warning message导致navigation失败。网上搜的一些资料先记录在这. https://stackoverflow.com/questions/30128395/identifying-and-solving-javax-el-propertynotfoundexception-target-unreachable https://stackoverflow.com/questions/7031885/how-to-choose-the-right-bean ...

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  3. 问题:eclipsephp打开某个workspace时hang住,不能打开eclipse. 能成功打开其他workspace. 解决方法: 1. 查看log.  进入该workspace文件夹->.metadata->.log !ENTRY org.eclipse.core.resources 2 10035 2018-05-05 15:00:29.044 10 !MESSAGE The workspace exited with unsaved ...

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  4. 启动Tomcat8.5.11时遇到下面的异常: org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 19 at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:131) at org.apache.tomcat.util.bcel. ...

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