Independently on how I hard I try, I'm not able to recreate the problem. It happened twice in two following days but now it's no t happening again ...
I've seen that the mail reporting the same exception:

https://mailman.uni-konstanz.de/pipermail/basex-talk/2013-February/004690.html

has been faced and solved

https://mailman.uni-konstanz.de/pipermail/basex-talk/2013-February/004734.html

Can anyone tell on whether the problem, under the hood, was the same?
Thank you.
M.


On 02/20/2013 01:20 PM, Marco Lettere wrote:
Hi all,
yesterday I stumbled upon a strange bug which today showed up again in the exact same manner.

I wanted to replace, by calling this REST uri (http://localhost:8984/rest/rlus/HCP/rules/CDAReports_rules.xml) from firefox's poster tool,  the following resource

<hdataext:extension id="CDA2_REPORT" xmlns:hdataext="urn:dedalus:hdata:extensions" extensionId="CDA2_REPORT" contentType="application/xml">
    <hdataext:namespace prefix="hl7v3" href="urn:hl7-org:v3" />
    <hdataext:documentid>$input/cda:id/data(@extension)</hdataext:documentid>
    <hdataext:documentname>concat($input/cda:templateId/data(@extension),'_',$input/cda:id/data(@extension),'.cda')</hdataext:documentname>
    <hdataext:documentrecord>concat($input//cda:patientRole/cda:id[@root='2.16.840.1.113883.2.9.4.3.2']/data(@root),'_',$input//cda:patientRole/cda:id[@root='2.16.840.1.113883.2.9.4.3.2']/data(@extension))</hdataext:documentrecord>
    <hdataext:documentaddress>concat("http://localhost:8984/rest/",$input)</hdataext:documentaddress>
    <hdataext:documentmetadata>()</hdataext:documentmetadata>
</hdataext:extension>

with this one

<hdataext:extension id="CDA2_REPORT" xmlns:hdataext="urn:dedalus:hdata:extensions" extensionId="CDA2_REPORT" contentType="application/xml">
    <hdataext:namespace prefix="hl7v3" href="urn:hl7-org:v3" />
    <hdataext:namespace prefix="cda" href="urn:hl7-org:v3" />
    <hdataext:documentid>$input/cda:id/data(@extension)</hdataext:documentid>
    <hdataext:documentname>concat($input/cda:templateId/data(@extension),'_',$input/cda:id/data(@extension),'.cda')</hdataext:documentname>
    <hdataext:documentrecord>concat($input//cda:patientRole/cda:id[@root='2.16.840.1.113883.2.9.4.3.2']/data(@root),'_',$input//cda:patientRole/cda:id[@root='2.16.840.1.113883.2.9.4.3.2']/data(@extension))</hdataext:documentrecord>
    <hdataext:documentaddress>concat("http://localhost:8984/rest/",$input)</hdataext:documentaddress>
    <hdataext:documentmetadata>()</hdataext:documentmetadata>
</hdataext:extension>


I got this nasty exception:

Improper use? Potential bug? Your feedback is welcome:
Contact: basex-talk@mailman.uni-konstanz.de
Version: BaseX 7.6
Java: Sun Microsystems Inc., 1.6.0_18
OS: Linux, i386
Stack Trace:
java.lang.ArrayIndexOutOfBoundsException: 2
  org.basex.io.random.TableDiskAccess.flush(TableDiskAccess.java:124)
  org.basex.data.DiskData.finishUpdate(DiskData.java:212)
  org.basex.core.cmd.Replace.run(Replace.java:78)
  org.basex.core.Command.run(Command.java:342)
  org.basex.core.Command.exec(Command.java:321)
  org.basex.core.Command.execute(Command.java:78)
  org.basex.core.Command.execute(Command.java:90)
  org.basex.server.LocalSession.execute(LocalSession.java:97)
  org.basex.server.LocalSession.replace(LocalSession.java:81)
  org.basex.http.rest.RESTPut.run(RESTPut.java:59)
  org.basex.http.rest.RESTServlet.run(RESTServlet.java:14)
  org.basex.http.BaseXServlet.service(BaseXServlet.java:39)
  javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
  org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:648)
  org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:455)
  org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
  org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:559)
  org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:232)
  org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
  org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
  org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:194)
  org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
  org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
  org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
  org.eclipse.jetty.server.Server.handle(Server.java:365)
  org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
  org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:937)
  org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:998)
  org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:856)
  org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
  org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
  org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:627)
  org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:51)
  org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
  org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
  java.lang.Thread.run(Thread.java:619)
1 resource(s) replaced in 2.47 ms.

and as a MUCH WORSE side effect ... my database is completely messed up. It shows up in the basexgui but when I try to open it nothing happens and the basexgui yields the following exception:

Exception occurred during event dispatching:
java.lang.RuntimeException: Data Access out of bounds:
- pre value: 0
- #used blocks: 0
- #total locks: 0
- access: -1 (0 > -1]
    at org.basex.util.Util.notexpected(Util.java:53)
    at org.basex.io.random.TableDiskAccess.cursor(TableDiskAccess.java:488)
    at org.basex.io.random.TableDiskAccess.read1(TableDiskAccess.java:189)
    at org.basex.data.Data.kind(Data.java:283)
    at org.basex.query.value.node.DBNode.<init>(DBNode.java:49)
    at org.basex.query.value.node.FTPosNode.<init>(FTPosNode.java:22)
    at org.basex.data.Nodes.serialize(Nodes.java:227)
    at org.basex.data.Nodes.serialize(Nodes.java:222)
    at org.basex.gui.view.text.TextView.setText(TextView.java:142)
    at org.basex.gui.view.text.TextView.refreshContext(TextView.java:104)
    at org.basex.gui.view.text.TextView.refreshInit(TextView.java:90)
    at org.basex.gui.view.ViewNotifier.init(ViewNotifier.java:80)
    at org.basex.gui.dialog.DialogProgress.execute(DialogProgress.java:204)
    at org.basex.gui.dialog.DialogProgress.execute(DialogProgress.java:146)
    at org.basex.gui.dialog.DialogProgress.execute(DialogProgress.java:124)
    at org.basex.gui.dialog.DialogManage.close(DialogManage.java:249)
    at org.basex.gui.dialog.DialogManage.action(DialogManage.java:145)
    at org.basex.gui.layout.BaseXButton$1.actionPerformed(BaseXButton.java:39)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
    at java.awt.Component.processMouseEvent(Component.java:6263)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
    at java.awt.Component.processEvent(Component.java:6028)
    at java.awt.Container.processEvent(Container.java:2041)
    at java.awt.Component.dispatchEventImpl(Component.java:4630)
    at java.awt.Container.dispatchEventImpl(Container.java:2099)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
    at java.awt.Container.dispatchEventImpl(Container.java:2085)
    at java.awt.Window.dispatchEventImpl(Window.java:2478)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
    at java.awt.Dialog$1.run(Dialog.java:1046)
    at java.awt.Dialog$3.run(Dialog.java:1098)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.awt.Dialog.show(Dialog.java:1096)
    at java.awt.Component.show(Component.java:1563)
    at java.awt.Component.setVisible(Component.java:1515)
    at java.awt.Window.setVisible(Window.java:842)
    at java.awt.Dialog.setVisible(Dialog.java:986)
    at org.basex.gui.layout.BaseXDialog.finish(BaseXDialog.java:111)
    at org.basex.gui.dialog.DialogManage.<init>(DialogManage.java:119)
    at org.basex.gui.GUICommands$2.execute(GUICommands.java:52)
    at org.basex.gui.layout.BaseXButton$3.actionPerformed(BaseXButton.java:95)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
    at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
    at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
    at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
    at java.awt.Component.processMouseEvent(Component.java:6263)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
    at java.awt.Component.processEvent(Component.java:6028)
    at java.awt.Container.processEvent(Container.java:2041)
    at java.awt.Component.dispatchEventImpl(Component.java:4630)
    at java.awt.Container.dispatchEventImpl(Container.java:2099)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
    at java.awt.Container.dispatchEventImpl(Container.java:2085)
    at java.awt.Window.dispatchEventImpl(Window.java:2478)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

any hints?
Thank you.
M.


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