抛出的异常如下：
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- java.<span style="">lang</span>.<a href="http://www.google.com/search?hl=en&q=allinurl%3Astackoverflowerror+java.sun.com&btnI=I%27m%20Feeling%20Lucky"><span style="">StackOverflowError</span></a>
- at rg.<span style="">hibernate</span>.<span style="">hql</span>.<span style="">ast</span>.<span style="">QueryTranslatorImpl</span>$JavaConstantConverter.<span style="">visit</span><span style="">(</span>QueryTranslatorImpl.<span style="">java</span><span style="color: rgb(51, 153, 51);">:</span><span style="color: rgb(204, 102, 204);">573</span><span style="">)</span>
- at org.<span style="">hibernate</span>.<span style="">hql</span>.<span style="">ast</span>.<span style="">util</span>.<span style="">NodeTraverser</span>.<span style="">visitDepthFirst</span><span style="">(</span>NodeTraverser.<span style="">java</span><span style="color: rgb(51, 153, 51);">:</span><span style="color: rgb(204, 102, 204);">64</span><span style="">)</span>
- at org.<span style="">hibernate</span>.<span style="">hql</span>.<span style="">ast</span>.<span style="">util</span>.<span style="">NodeTraverser</span>.<span style="">visitDepthFirst</span><span style="">(</span>NodeTraverser.<span style="">java</span><span style="color: rgb(51, 153, 51);">:</span><span style="color: rgb(204, 102, 204);">66</span><span style="">)</span>
- at org.<span style="">hibernate</span>.<span style="">hql</span>.<span style="">ast</span>.<span style="">util</span>.<span style="">NodeTraverser</span>.<span style="">visitDepthFirst</span><span style="">(</span>NodeTraverser.<span style="">java</span><span style="color: rgb(51, 153, 51);">:</span><span style="color: rgb(204, 102, 204);">66</span><span style="">)</span>
- at org.<span style="">hibernate</span>.<span style="">hql</span>.<span style="">ast</span>.<span style="">util</span>.<span style="">NodeTraverser</span>.<span style="">visitDepthFirst</span><span style="">(</span>NodeTraverser.<span style="">java</span><span style="color: rgb(51, 153, 51);">:</span><span style="color: rgb(204, 102, 204);">66</span><span style="">)</span>
- at org.<span style="">hibernate</span>.<span style="">hql</span>.<span style="">ast</span>.<span style="">util</span>.<span style="">NodeTraverser</span>.<span style="">visitDepthFirst</span><span style="">(</span>NodeTraverser.<span style="">java</span><span style="color: rgb(51, 153, 51);">:</span><span style="color: rgb(204, 102, 204);">66</span><span style="">)</span>
java.lang.StackOverflowError
at rg.hibernate.hql.ast.QueryTranslatorImpl$JavaConstantConverter.visit(QueryTranslatorImpl.java:573)
at org.hibernate.hql.ast.util.NodeTraverser.visitDepthFirst(NodeTraverser.java:64)
at org.hibernate.hql.ast.util.NodeTraverser.visitDepthFirst(NodeTraverser.java:66)
at org.hibernate.hql.ast.util.NodeTraverser.visitDepthFirst(NodeTraverser.java:66)
at org.hibernate.hql.ast.util.NodeTraverser.visitDepthFirst(NodeTraverser.java:66)
at org.hibernate.hql.ast.util.NodeTraverser.visitDepthFirst(NodeTraverser.java:66)
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不论是使用 where x in(:x) 还是使用 where x in (1,2,3…)的方式，如果引用的参数超过堆栈空间，都会引发堆栈溢出异常。在大多数的JVM中，参数限制在9000~10000之间。
堆栈溢出的原因在于org.hibernate.hql.ast.util.NodeTraverser在解析语法树的时候采用了递归算法，大量的
in参数会生成一个的子树，子树的深度和in参数的个数相同。解决方法是使用迭代的方式代替递归树，这样就不会耗尽堆栈。在Hibernate
3.2.x以上版本已经解决了这个问题。
