RowIterator.next() fails when hasNext() returns true

[Fitzgibbons, Brad]

I originally sent this to the users list but received no response.  I'm really hoping someone here can help me.  Thanks in advance!

I'm running into this problem occasionally resulting in the exception below.  I'm using Jackrabbit 1.4 (with core at 1.4.2).  I'm using the H2PersistenceManager and almost all configuration values are set to their released default. Document order is turned off so the query is using a LazyScoreNodeIterator.  I'm running in a transactional environment, and my entire execution flow is contained by a single, read-only, JTA transaction.  The single transaction includes executing the query and all interactions with the returned RowIterator.  If I ignore the NoSuchElementException's and continue using the iterator then there are often good results subsequent to the error.  I've noticed that when these errors occur there are often far more results than are returned by RowIterator.getSize().  I realize that getSize() is not meant to be an accurate count of all results, but in most other cases getSize() is greater than the size of the result set (this may not be helpful).  I'm using a SQL query that involves the CONTAINS constraint (so lucene) and ordering by jcr:score.  Does this warrant a bug submission?  Is there any additional information which might help?

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.util.NoSuchElementException
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:535)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:453)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:114)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:91)
        at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:103)
        at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:181)
        at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:266)
        at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:269)
        at com.caucho.server.port.TcpConnection.run(TcpConnection.java:603)
        at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:721)
        at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:643)
        at java.lang.Thread.run(Thread.java:619)
Caused by: java.util.NoSuchElementException
        at org.apache.jackrabbit.core.query.lucene.QueryResultImpl$LazyScoreNodeIterator.getScore(QueryResultImpl.java:351)
        at org.apache.jackrabbit.core.query.lucene.RowIteratorImpl.nextRow(RowIteratorImpl.java:153)
        at com.techtarget.content.data.jcr1.ElementDaoImpl.nextElement(ElementDaoImpl.java:722)
        at com.techtarget.content.data.jcr1.PropertyIterator.next(PropertyIterator.java:47)
        at com.techtarget.content.data.jcr1.PropertyIterator.next(PropertyIterator.java:21)
        at com.techtarget.content.web.controller.ProfileController.resourceQueryAndPrint(ProfileController.java:125)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java:305)
        at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:131)
        at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:308)
        at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:295)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:874)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:808)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:523)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:453)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:114)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:91)
        at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:103)
        at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:181)
        at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:266)
        at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:269)
        at com.caucho.server.port.TcpConnection.run(TcpConnection.java:603)
        at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:721)
        at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:643)
        at java.lang.Thread.run(Thread.java:619)

Brad Fitzgibbons
Senior Software Engineer
Tech Target
The Most Targeted IT Media
http://www.techtarget.com/