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
