Bugreport V7.7 java.lang.ArrayIndexOutOfBoundsException

On Tue, Nov 19, 2013 at 11:58 PM, Bodo Hüsemann <bodo.huesemann at gmx.de> wrote: > Hi BaseX team, > > > > Using BaseX 7.7 in an embedded Java Application Server I’ve encountered the > following reproducible error. The error occurs if the same query is issued > the second time after the first has been successfully executed (after > restarting the server the query will run again the first time ok and the > second time with this error). This indicates a potential concurrency or > non-closed cursor bug to me, but I don’t see the problem and surely we > shouldn’t get an java.lang.ArrayIndexOutOfBoundsException even if with my > bad code quality. > > Could you please have a look and advise to improve my code, or fix a > potential bug? > > > > Many thanks in advance, > > Bodo > > > > Error stack trace: > > > > WARNING 2013.11.19 23:00:36 Error while loading document: > sqlQuery_ora_F30929C659D0CED7525C61A7D149E7D4C0301A18 > > org.basex.core.BaseXException: Improper use? Potential bug? Your feedback is > welcome: > > Contact: basex-talk at mailman.uni-konstanz.de > > Version: BaseX 7.7 > > Java: Oracle Corporation, 1.7.0_15 > > OS: Windows 7, amd64 > > Stack Trace: > > java.lang.ArrayIndexOutOfBoundsException: 2 > > at > org.basex.io.random.TableDiskAccess.flush(TableDiskAccess.java:124) > > at org.basex.data.DiskData.finishUpdate(DiskData.java:212) > > at org.basex.core.cmd.Add.run(Add.java:109) > > at org.basex.core.Command.run(Command.java:345) > > at org.basex.core.Command.exec(Command.java:321) > > at org.basex.core.Command.execute(Command.java:78) > > at org.basex.core.Command.execute(Command.java:90) > > at > org.basex.server.ClientListener.execute(ClientListener.java:386) > > at > org.basex.server.ClientListener.add(ClientListener.java:357) > > at > org.basex.server.ClientListener.run(ClientListener.java:100) > > > > at > org.basex.server.ClientSession.receive(ClientSession.java:259) > > at > org.basex.server.ClientSession.send(ClientSession.java:246) > > at > org.basex.server.ClientSession.send(ClientSession.java:284) > > at > org.basex.server.ClientSession.add(ClientSession.java:134) > > at > de.infabswissarmy.control.XMLDBManagerBaseX.putDoc(XMLDBManagerBaseX.java:252) > > at > de.infabswissarmy.control.XMLDBManagerBaseX.putDoc(XMLDBManagerBaseX.java:56) > > at > de.infabswissarmy.control.QueryTask.sqlQuery(QueryTask.java:258) > > at > de.infabswissarmy.control.QueryTask.query(QueryTask.java:138) > > at > de.infabswissarmy.control.QueryTask.run(QueryTask.java:283) > > at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown > Source) > > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > > at java.lang.Thread.run(Unknown Source) > > org.basex.core.BaseXException: > java.nio.channels.OverlappingFileLockException > > at org.basex.server.ClientQuery.cache(ClientQuery.java:81) > > at org.basex.server.Query.more(Query.java:74) > > at > de.infabswissarmy.control.XMLDBManagerBaseX.query(XMLDBManagerBaseX.java:86) > > at > de.infabswissarmy.control.XMLDBManagerBaseX.queryDoc(XMLDBManagerBaseX.java:131) > > at > de.infabswissarmy.control.QueryTask.query(QueryTask.java:192) > > at > de.infabswissarmy.control.QueryTask.run(QueryTask.java:283) > > at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown > Source) > > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > > at java.lang.Thread.run(Unknown Source) > > > > Relevant source extract: > > private static void putDoc(String inContainerName, String inDocumentRef, > byte[] inDocument){ > > ClientSession mySession = null; > > try { > > mySession = getClientSession(); > > // document already exists? > > if(existsDoc(inContainerName, inDocumentRef)){ > > // delete old document > > mySession.execute(new Open(inContainerName)); > > mySession.execute(new Delete(inDocumentRef)); > > } > > mySession.execute(new Open(inContainerName)); > > // add new document > > mySession.add(inDocumentRef, new > ByteArrayInputStream(inDocument)); > > } catch (IOException e) { > > logger.warning("Error while loading document: " + > inDocumentRef); > > e.printStackTrace(); > > }finally { > > if (mySession != null){ > > try { > > mySession.close(); > > } catch (IOException e) {} > > } > > } > > } > > > > public ArrayList<String> query(String inQuery, String[][] inArgs){ > > ClientSession mySession = null; > > ClientQuery myQuery = null; > > ArrayList<String> tmpString = new ArrayList<String>(); > > try { > > mySession = getClientSession(); > > myQuery = mySession.query(inQuery); > > > > // bind variable > > if (inArgs != null){ > > for (int i=0; i < inArgs.length; i++){ > > myQuery.bind("$" + inArgs[i][0], inArgs[i][1]); > > } > > } > > > > while (myQuery.more()){ > > tmpString.add(myQuery.next()); > > } > > } catch (IOException e) { > > // TODO Auto-generated catch block > > e.printStackTrace(); > > } finally { > > if (myQuery != null){ > > try { > > myQuery.close(); > > } catch (BaseXException e) { > > // ignore > > } catch (IOException e) { > > // TODO Auto-generated catch block > > e.printStackTrace(); > > } > > } > > if (mySession != null){ > > try { > > mySession.close(); > > } catch (BaseXException e){ > > //ignore > > } catch (IOException e){ > > // TODO Auto-generated catch block > > e.printStackTrace(); > > } > > } > > } > > return tmpString; > > } > > > _______________________________________________ > BaseX-Talk mailing list > BaseX-Talk at mailman.uni-konstanz.de > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk >

-----Ursprüngliche Nachricht----- Von: Christian Grün [mailto:christian.gruen at gmail.com] Gesendet: Mittwoch, 20. November 2013 02:36 An: Bodo Hüsemann Cc: BaseX Betreff: Re: [basex-talk] Bugreport V7.7 java.lang.ArrayIndexOutOfBoundsException Hi Bodo, thanks for sending the testing code; Ill have a look at it later. To be sure: does the problem also occur with the latest snapshot [1]? Thanks, Christian [1] http://files.basex.org/releases/latest/ On Tue, Nov 19, 2013 at 11:58 PM, Bodo Hüsemann <bodo.huesemann at gmx.de> wrote: > Hi BaseX team, > > > > Using BaseX 7.7 in an embedded Java Application Server Ive > encountered the following reproducible error. The error occurs if the > same query is issued the second time after the first has been > successfully executed (after restarting the server the query will run > again the first time ok and the second time with this error). This > indicates a potential concurrency or non-closed cursor bug to me, but > I dont see the problem and surely we shouldnt get an > java.lang.ArrayIndexOutOfBoundsException even if with my bad code quality. > > Could you please have a look and advise to improve my code, or fix a > potential bug? > > > > Many thanks in advance, > > Bodo > > > > Error stack trace: > > > > WARNING 2013.11.19 23:00:36 Error while loading document: > sqlQuery_ora_F30929C659D0CED7525C61A7D149E7D4C0301A18 > > org.basex.core.BaseXException: Improper use? Potential bug? Your > feedback is > welcome: > > Contact: basex-talk at mailman.uni-konstanz.de > > Version: BaseX 7.7 > > Java: Oracle Corporation, 1.7.0_15 > > OS: Windows 7, amd64 > > Stack Trace: > > java.lang.ArrayIndexOutOfBoundsException: 2 > > at > org.basex.io.random.TableDiskAccess.flush(TableDiskAccess.java:124) > > at > org.basex.data.DiskData.finishUpdate(DiskData.java:212) > > at org.basex.core.cmd.Add.run(Add.java:109) > > at org.basex.core.Command.run(Command.java:345) > > at org.basex.core.Command.exec(Command.java:321) > > at org.basex.core.Command.execute(Command.java:78) > > at org.basex.core.Command.execute(Command.java:90) > > at > org.basex.server.ClientListener.execute(ClientListener.java:386) > > at > org.basex.server.ClientListener.add(ClientListener.java:357) > > at > org.basex.server.ClientListener.run(ClientListener.java:100) > > > > at > org.basex.server.ClientSession.receive(ClientSession.java:259) > > at > org.basex.server.ClientSession.send(ClientSession.java:246) > > at > org.basex.server.ClientSession.send(ClientSession.java:284) > > at > org.basex.server.ClientSession.add(ClientSession.java:134) > > at > de.infabswissarmy.control.XMLDBManagerBaseX.putDoc(XMLDBManagerBaseX.j > ava:252) > > at > de.infabswissarmy.control.XMLDBManagerBaseX.putDoc(XMLDBManagerBaseX.j > ava:56) > > at > de.infabswissarmy.control.QueryTask.sqlQuery(QueryTask.java:258) > > at > de.infabswissarmy.control.QueryTask.query(QueryTask.java:138) > > at > de.infabswissarmy.control.QueryTask.run(QueryTask.java:283) > > at > java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown > Source) > > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > > at java.lang.Thread.run(Unknown Source) > > org.basex.core.BaseXException: > java.nio.channels.OverlappingFileLockException > > at > org.basex.server.ClientQuery.cache(ClientQuery.java:81) > > at org.basex.server.Query.more(Query.java:74) > > at > de.infabswissarmy.control.XMLDBManagerBaseX.query(XMLDBManagerBaseX.ja > va:86) > > at > de.infabswissarmy.control.XMLDBManagerBaseX.queryDoc(XMLDBManagerBaseX > .java:131) > > at > de.infabswissarmy.control.QueryTask.query(QueryTask.java:192) > > at > de.infabswissarmy.control.QueryTask.run(QueryTask.java:283) > > at > java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown > Source) > > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > > at java.lang.Thread.run(Unknown Source) > > > > Relevant source extract: > > private static void putDoc(String inContainerName, String > inDocumentRef, byte[] inDocument){ > > ClientSession mySession = null; > > try { > > mySession = getClientSession(); > > // document already exists? > > if(existsDoc(inContainerName, inDocumentRef)){ > > // delete old document > > mySession.execute(new Open(inContainerName)); > > mySession.execute(new Delete(inDocumentRef)); > > } > > mySession.execute(new Open(inContainerName)); > > // add new document > > mySession.add(inDocumentRef, new > ByteArrayInputStream(inDocument)); > > } catch (IOException e) { > > logger.warning("Error while loading document: " + > inDocumentRef); > > e.printStackTrace(); > > }finally { > > if (mySession != null){ > > try { > > mySession.close(); > > } catch (IOException e) {} > > } > > } > > } > > > > public ArrayList<String> query(String inQuery, String[][] inArgs){ > > ClientSession mySession = null; > > ClientQuery myQuery = null; > > ArrayList<String> tmpString = new ArrayList<String>(); > > try { > > mySession = getClientSession(); > > myQuery = mySession.query(inQuery); > > > > // bind variable > > if (inArgs != null){ > > for (int i=0; i < inArgs.length; i++){ > > myQuery.bind("$" + inArgs[i][0], inArgs[i][1]); > > } > > } > > > > while (myQuery.more()){ > > tmpString.add(myQuery.next()); > > } > > } catch (IOException e) { > > // TODO Auto-generated catch block > > e.printStackTrace(); > > } finally { > > if (myQuery != null){ > > try { > > myQuery.close(); > > } catch (BaseXException e) { > > // ignore > > } catch (IOException e) { > > // TODO Auto-generated catch block > > e.printStackTrace(); > > } > > } > > if (mySession != null){ > > try { > > mySession.close(); > > } catch (BaseXException e){ > > //ignore > > } catch (IOException e){ > > // TODO Auto-generated catch block > > e.printStackTrace(); > > } > > } > > } > > return tmpString; > > } > > > _______________________________________________ > BaseX-Talk mailing list > BaseX-Talk at mailman.uni-konstanz.de > https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk >