StackOverflow2013

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plurals

PO
primarykey
Id
12702300
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2012-10-03T05:17:44.047
FavoriteCount
0
LastActivityDate
2012-10-03T12:31:46.663
LastEditDate
2012-10-03T12:31:46.663
LastEditorUserId
139985
OwnerUserId
139985
ParentId
12701789
PostTypeId
2
Score
4
ViewCount
0
LastEditorDisplayName
text
Body
<blockquote> AException a = new AException (new BException ( new AException ) ); </blockquote> This is legal. <hr> You can also initialize the cause directly using the <code>initCause(Throwable)</code> method. If you try to make exception its own cause; e.g. <pre><code> AException a = new AException(); a.initCause(a); </code></pre> you will get an <code>IllegalArgumentException("Self-causation not permitted")</code>. (Thanks to Joachim Sauer for pointing that out.) While, the JVM will not stop you creating an indirect cycle, it is a really bad idea nonetheless. <ul> <li>It is an abuse of the <code>Throwable</code> API. It makes no logical sense for an exceptional event to have caused itself, directly or indirectly.</li> <li>There is likely be code out there that assumes that the "cause" chain of an exception doesn't have any cycles. Such code is likely to fail in a nasty way if it ever encounters a pathological exception with a cause cycle. </li> </ul> Note that current generation (Java 7) <code>printStackTrace()</code> detects and deals with a "cause" cycles, but earlier generations did not: <ul> <li><a href="http://srl.cs.berkeley.edu/~mhn/ftp/java/lang/Throwable.java.html" rel="nofollow">http://srl.cs.berkeley.edu/~mhn/ftp/java/lang/Throwable.java.html</a></li> <li><a href="http://javasourcecode.org/html/open-source/jdk/jdk-6u23/java.lang/Throwable.java.html" rel="nofollow">http://javasourcecode.org/html/open-source/jdk/jdk-6u23/java.lang/Throwable.java.html</a></li> </ul>
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1. POCan we wrap an Exception with its own in java
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1. PTAnswer
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1. USStephen C
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1. USStephen C
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1. POCan we wrap an Exception with its own in java
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1. CO@JoachimSauer - Fixed ... thanks ...
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