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org.hibernate.AnnotationException: No identifier specified for entity
org.hibernate.AnnotationException: No identifier specified for entity Posted: 10 May 2012 04:53 AM PDTSource site: Click hereWhen you are writing a piece of code from scratch a lot of转载 2012-12-04 10:17:54 · 555 阅读 · 0 评论 -
Caused by: java.lang.OutOfMemoryError: Java heap space
/*程序中创建了太多的对象,占用过多的堆空间,可试图设置增大内存或者减少创建的对象*/Long long_1 = 0L;......//here has 1000 new Object created原创 2013-05-22 17:27:45 · 1075 阅读 · 0 评论 -
Exception in thread "ContainerBackgroundProcessor[StandardEngine[Catalina]]" java.lang.OutOfMemoryEr
启动tomcat时抛出异常：Exception in thread "ContainerBackgroundProcessor[StandardEngine[Catalina]]" java.lang.OutOfMemoryError: PermGen space 1 /** 2 * 原因如下： 3 * PermGen space的全称是Permanent转载 2014-03-31 17:29:58 · 1065 阅读 · 0 评论