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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"DocumentException didn't initalize cause in the standard way and lose inner stack trace when using logback","articleBody":"In the class org.dom4j.DocumentException\r\n```\r\npublic DocumentException(Throwable nestedException) {\r\n\tsuper(nestedException.getMessage());\r\n\tthis.nestedException = nestedException;\r\n}\r\n\r\npublic DocumentException(String message, Throwable nestedException) {\r\n\tsuper(message);\r\n\tthis.nestedException = nestedException;\r\n}\r\n```\r\nThese two constructor function didn't assign inner exception to java.lang.Throwable.cause.\r\nInstead,it used org.dom4j.DocumentException.nestedException.\r\nWhen I used Logback to log the error,the inner exception stack is lost.\r\n\r\nCurrently, i used the following code to get around it.\r\n\r\n```\r\npublic static void fillDom4jCause(Throwable t) {\r\n\tif (null == t) {\r\n\t\treturn;\r\n\t}\r\n\tif (t instanceof org.dom4j.DocumentException) {\r\n\t\tThrowable inner = ((org.dom4j.DocumentException) t).getNestedException();\r\n\t\tif (null == inner)\r\n\t\t\treturn;\r\n\t\tfillDom4jCause(inner);\r\n\t\tt.initCause(inner);\r\n\t}\r\n\telse {\r\n\t\tThrowable inner = t.getCause();\r\n\t\tif (null == inner)\r\n\t\t\treturn;\r\n\t\tfillDom4jCause(inner);\r\n\t}\r\n}\r\n```\r\n\r\n","author":{"url":"https://github.com/tankilo","@type":"Person","name":"tankilo"},"datePublished":"2016-12-28T05:18:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/20/dom4j/issues/20"}