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@opentext.com schrieb am Do., 27. 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/or...

Thanks, Srikumar