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BaseX 9.4.2: Tweaks & Fixes

Friday, 21 August 2020 · 8 messages · last reply 2 Apr 2021
CG
Christian Grün21 Aug 2020 15:02 #
Dear all, We have released another 9.4 late-summer maintenance release with new performance tweaks and minor bug fixes: http://basex.org In addition, we have started a new Wiki article on XQuery optimizations, which we plan to extend step by step: https://docs.basex.org/wiki/XQuery_Optimizations We are looking forward to your feedback; have fun, Your BaseX Team
SC
Srikumar Choudhury27 Aug 2020 06:57 #
Hi Christian, I am using basex-xqj client, XQExpression-8.executeQuery() API throws java.lang.NullPointerException exception while executing XQuery(retrieving the 171 MB xml document) like db:open('testenvSSL1', '6300000180000114/0600000180002931.xml'), marked in red below. Could you please help me to fix this java.lang.NullPointerException exception issue? Source code:
===========
final XQExpression xqpe = m_conn.createExpression();
String query = "db:open('" + databaseName + "', '" + pathURL + "')";
   final XQResultSequence resultSeq = xqpe.executeQuery(query);
pom.xml:
========
<!-- https://mvnrepository.com/artifact/net.xqj/basex-xqj -->
<dependency>
    <groupId>net.xqj</groupId>
    <artifactId>basex-xqj</artifactId>
    <version>9.0</version>
</dependency>
        <dependency>
            <groupId>com.xqj2</groupId>
            <artifactId>xqj2</artifactId>
            <version>0.2.0</version>
        </dependency>
        <dependency>
            <groupId>javax.xml.xquery</groupId>
            <artifactId>xqj-api</artifactId>
            <version>1.0</version>
        </dependency>
Retrieve of 8 MB xml document successful working log: =================================================== 2020-08-27 10:04:12,040 INFO [stdout] (default task-3) [10:04:12.040] TRACE: XQConnection-1.createExpression() invoked. 2020-08-27 10:04:12,040 INFO [stdout] (default task-3) [10:04:12.040] TRACE: XQConnection.getStaticContext() invoked. 2020-08-27 10:04:12,056 INFO [stdout] (default task-3) [10:04:12.040] TRACE: XQExpression-4.executeQuery(), raw XQuery resolved to: db:open('testenvSSL1', '6300000180000114/0600000180002930.xml') 2020-08-27 10:04:12,650 INFO [stdout] (default task-3) [10:04:12.650] DEBUG: XQExpression-4.close() invoked. Upload 171 MB xml document successful log: ======================================== 2020-08-27 10:06:31,552 INFO [stdout] (default task-3) [10:06:31.552] TRACE: XQConnection-1.createExpression() invoked. 2020-08-27 10:06:31,552 INFO [stdout] (default task-3) [10:06:31.552] TRACE: XQConnection.getStaticContext() invoked. 2020-08-27 10:06:31,568 INFO [stdout] (default task-3) [10:06:31.552] TRACE: XQExpression-6.executeQuery(), raw XQuery resolved to: db:replace('testenvSSL1', '6300000180000114/0600000180002931.xml', 'C:\Program Files (x86)\BaseX\data\0600000180002931.xml') 2020-08-27 10:06:40,896 INFO [stdout] (default task-3) [10:06:40.896] DEBUG: XQExpression-6.close() invoked. Retrieve of 171 MB xml document failed, nonworking log: ========================================================= 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] TRACE: XQConnection-1.createExpression() invoked. 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] TRACE: XQConnection.getStaticContext() invoked. 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] TRACE: XQExpression-8.executeQuery(), raw XQuery resolved to: db:open('testenvSSL1', '6300000180000114/0600000180002931.xml') 2020-08-27 10:06:53,083 ERROR [org.springframework.boot.web.servlet.support.ErrorPageFilter] (default task-3) Forwarding to error page from request [/servlet/XMLStoreServiceServlet] due to exception [null]: java.lang.NullPointerException referred source code from: https://github.com/BaseXdb/basex/tree/master/basex-examples/src/main/java/org/basex/examples/xqj Thanks, Srikumar
SC
Srikumar Choudhury27 Aug 2020 07:02 #
Hi Christian, I am using basex-xqj client, XQExpression-8.executeQuery() API throws java.lang.NullPointerException exception while executing XQuery(retrieving the 171 MB xml document) like db:open('testenvSSL1', '6300000180000114/0600000180002931.xml'), marked in red below. Could you please help me to fix this java.lang.NullPointerException exception issue? Source code:
===========
final XQExpression xqpe = m_conn.createExpression();
String query = "db:open('" + databaseName + "', '" + pathURL + "')";
   final XQResultSequence resultSeq = xqpe.executeQuery(query);
pom.xml:
========
<!-- https://mvnrepository.com/artifact/net.xqj/basex-xqj -->
<dependency>
    <groupId>net.xqj</groupId>
    <artifactId>basex-xqj</artifactId>
    <version>9.0</version>
</dependency>
        <dependency>
            <groupId>com.xqj2</groupId>
            <artifactId>xqj2</artifactId>
            <version>0.2.0</version>
        </dependency>
        <dependency>
            <groupId>javax.xml.xquery</groupId>
            <artifactId>xqj-api</artifactId>
            <version>1.0</version>
        </dependency>
Retrieve of 8 MB xml document successful working log: =================================================== 2020-08-27 10:04:12,040 INFO [stdout] (default task-3) [10:04:12.040] TRACE: XQConnection-1.createExpression() invoked. 2020-08-27 10:04:12,040 INFO [stdout] (default task-3) [10:04:12.040] TRACE: XQConnection.getStaticContext() invoked. 2020-08-27 10:04:12,056 INFO [stdout] (default task-3) [10:04:12.040] TRACE: XQExpression-4.executeQuery(), raw XQuery resolved to: db:open('testenvSSL1', '6300000180000114/0600000180002930.xml') 2020-08-27 10:04:12,650 INFO [stdout] (default task-3) [10:04:12.650] DEBUG: XQExpression-4.close() invoked. Upload 171 MB xml document successful log: ======================================== 2020-08-27 10:06:31,552 INFO [stdout] (default task-3) [10:06:31.552] TRACE: XQConnection-1.createExpression() invoked. 2020-08-27 10:06:31,552 INFO [stdout] (default task-3) [10:06:31.552] TRACE: XQConnection.getStaticContext() invoked. 2020-08-27 10:06:31,568 INFO [stdout] (default task-3) [10:06:31.552] TRACE: XQExpression-6.executeQuery(), raw XQuery resolved to: db:replace('testenvSSL1', '6300000180000114/0600000180002931.xml', 'C:\Program Files (x86)\BaseX\data\0600000180002931.xml') 2020-08-27 10:06:40,896 INFO [stdout] (default task-3) [10:06:40.896] DEBUG: XQExpression-6.close() invoked. Retrieve of 171 MB xml document failed, nonworking log: ========================================================= 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] TRACE: XQConnection-1.createExpression() invoked. 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] TRACE: XQConnection.getStaticContext() invoked. 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] TRACE: XQExpression-8.executeQuery(), raw XQuery resolved to: db:open('testenvSSL1', '6300000180000114/0600000180002931.xml') 2020-08-27 10:06:53,083 ERROR [org.springframework.boot.web.servlet.support.ErrorPageFilter] (default task-3) Forwarding to error page from request [/servlet/XMLStoreServiceServlet] due to exception [null]: java.lang.NullPointerException referred source code from: https://github.com/BaseXdb/basex/tree/master/basex-examples/src/main/java/org/basex/examples/xqj Thanks, Srikumar
CG
Christian Grünin reply to Srikumar Choudhury, 27 Aug 2020, 06:5727 Aug 2020 08:25 #
Hi Srikumar, The error message seems to have been raised from within the Spring framework. Could you please provide us with some Java example code that we can run without Spring? Thanks in advance Christian Srikumar Choudhury <schoudhu at opentext.com> schrieb am Do., 27. Aug. 2020, 06:57:
Quoted text · Srikumar Choudhury · 95 lines
> Hi Christian, > I am using basex-xqj client, XQExpression-8.executeQuery() API throws > java.lang.NullPointerException exception while executing > XQuery(retrieving the 171 MB xml document) like db:open('testenvSSL1', > '6300000180000114/0600000180002931.xml'), marked in red below. > > Could you please help me to fix this java.lang.NullPointerException > exception issue? > > Source code: > =========== > final XQExpression xqpe = m_conn.createExpression(); > String query = "db:open('" + databaseName + "', '" + pathURL + "')"; > final XQResultSequence resultSeq = xqpe.executeQuery(query); > > pom.xml: > ======== > <!-- https://mvnrepository.com/artifact/net.xqj/basex-xqj --> > <dependency> > <groupId>net.xqj</groupId> > <artifactId>basex-xqj</artifactId> > <version>9.0</version> > </dependency> > <dependency> > <groupId>com.xqj2</groupId> > <artifactId>xqj2</artifactId> > <version>0.2.0</version> > </dependency> > <dependency> > <groupId>javax.xml.xquery</groupId> > <artifactId>xqj-api</artifactId> > <version>1.0</version> > </dependency> > > Retrieve of 8 MB xml document successful working log: > =================================================== > 2020-08-27 10:04:12,040 INFO [stdout] (default task-3) [10:04:12.040] > TRACE: XQConnection-1.createExpression() invoked. > > 2020-08-27 10:04:12,040 INFO [stdout] (default task-3) [10:04:12.040] > TRACE: XQConnection.getStaticContext() invoked. > > 2020-08-27 10:04:12,056 INFO [stdout] (default task-3) [10:04:12.040] > TRACE: XQExpression-4.executeQuery(), raw XQuery resolved to: > db:open('testenvSSL1', '6300000180000114/0600000180002930.xml') > > 2020-08-27 10:04:12,650 INFO [stdout] (default task-3) [10:04:12.650] > DEBUG: XQExpression-4.close() invoked. > > > Upload 171 MB xml document successful log: > ======================================== > > 2020-08-27 10:06:31,552 INFO [stdout] (default task-3) [10:06:31.552] > TRACE: XQConnection-1.createExpression() invoked. > > 2020-08-27 10:06:31,552 INFO [stdout] (default task-3) [10:06:31.552] > TRACE: XQConnection.getStaticContext() invoked. > > 2020-08-27 10:06:31,568 INFO [stdout] (default task-3) [10:06:31.552] > TRACE: XQExpression-6.executeQuery(), raw XQuery resolved to: > db:replace('testenvSSL1', '6300000180000114/0600000180002931.xml', > 'C:\Program Files (x86)\BaseX\data\0600000180002931.xml') > > 2020-08-27 10:06:40,896 INFO [stdout] (default task-3) [10:06:40.896] > DEBUG: XQExpression-6.close() invoked. > > > Retrieve of 171 MB xml document failed, nonworking log: > ========================================================= > 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] > TRACE: XQConnection-1.createExpression() invoked. > > 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] > TRACE: XQConnection.getStaticContext() invoked. > > 2020-08-27 10:06:45,161 INFO [stdout] (default task-3) [10:06:45.161] > TRACE: XQExpression-8.executeQuery(), raw XQuery resolved to: > db:open('testenvSSL1', '6300000180000114/0600000180002931.xml') > > 2020-08-27 10:06:53,083 ERROR > [org.springframework.boot.web.servlet.support.ErrorPageFilter] (default > task-3) Forwarding to error page from request > [/servlet/XMLStoreServiceServlet] due to exception [null]: > java.lang.NullPointerException > > > > referred source code from: > > https://github.com/BaseXdb/basex/tree/master/basex-examples/src/main/java/org/basex/examples/xqj > > Thanks, > Srikumar >
CG
Christian Grünin reply to Christian Grün, 21 Aug 2020, 15:0211 Sep 2020 14:00 #
Dear all, BaseX 9.4.3 is available, another late-summer maintenance release with new compile-time optimizations and performance tweaks: http://basex.org Have fun everyone, Your BaseX Team
CG
Christian Grün6 Nov 2020 13:36 #
Dear all, BaseX 9.4.4 is available. Once again, we have focused on performance tweaks and fixed some minor bugs. http://basex.org Have fun, thanks for all, Your BaseX Team
CG
Christian Grün24 Nov 2020 11:07 #
Dear all, Another patch release with bug fixes is online. All the best, Christian
CG
Christian Grünin reply to Christian Grün, 6 Nov 2020, 13:362 Apr 2021 12:19 #
Dear all, BaseX 9.5.1 is out. Some minor bugs have been fixed (nothing critical), and some more queries are rewritten to a faster representation. For example, consecutive for and let clauses will be merged now, and…
for $e in 1 to 10
let $n := $e + 1
order by $n descending
return string($n)
…will be optimized to: reverse(2 to 11) ! string(.) Have fun with the new release, stay healthy, Your BaseX Team

Written for BaseX 9.4, 9.5. BaseX may have changed since: please check the current documentation.

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