sszuev opened a new issue, #1556:
URL: https://github.com/apache/jena/issues/1556
### Version
4.6.1
### What happened?
```
java 11.0.15 2022-04-19 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.15+8-LTS-149)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.15+8-LTS-149, mixed mode)
------------------------------------------------------------
Gradle 7.4.2
------------------------------------------------------------
Build time: 2022-03-31 15:25:29 UTC
Revision: 540473b8118064efcc264694cbcaa4b677f61041
Kotlin: 1.5.31
Groovy: 3.0.9
Ant: Apache Ant(TM) version 1.10.11 compiled on July 10 2021
JVM: 11.0.15 (Oracle Corporation 11.0.15+8-LTS-149)
OS: Linux 5.10.16.3-microsoft-standard-WSL2 amd64
```
Commands to build & run:
```bash
$ gradle clean build
$ java -jar build/libs/test-jena-init-1.0-SNAPSHOT.jar
```
Test app:
```kotlin
package com.gitlab.sszuev.investigation
import org.apache.jena.query.QueryExecution
object JenaInitInvestigation {
init {
org.apache.jena.sys.JenaSystem.init()
//org.apache.jena.riot.RIOT.init()
//org.apache.jena.query.ARQ.init()
}
@JvmStatic
fun main(args: Array<String>) {
println("Go")
val endpoint = "http://xxx.example.com/sparql";
val queryString = "CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o }"
val m =
QueryExecution.service(endpoint).query(queryString).build().execConstruct()
println(m.size())
}
}
```
build.gradle
```gradle
plugins {
id "org.jetbrains.kotlin.jvm" version "1.7.10"
}
group 'com.gitlab.sszuev'
version '1.0-SNAPSHOT'
repositories {
mavenCentral()
}
dependencies {
implementation group: 'org.jetbrains.kotlin', name: 'kotlin-stdlib',
version: '1.7.10'
implementation 'org.apache.jena:jena-arq:4.6.1'
}
jar {
zip64 true
manifest {
attributes(
'Main-Class':
'com.gitlab.sszuev.investigation.JenaInitInvestigation',
'Implementation-Title': 'JenaInitTesting',
'Implementation-Version': archiveVersion,
"Multi-Release": true,
"Manifest-Version": "1.0",
)
}
duplicatesStrategy = 'include'
from {
configurations.runtimeClasspath.collect {
it.isDirectory() ? it : zipTree(it)
}
}
}
```
workaround - uncomment following lines:
```kotlin
org.apache.jena.riot.RIOT.init()
org.apache.jena.query.ARQ.init()
```
project:
[test-jena-init.tar.gz](https://github.com/apache/jena/files/9656288/test-jena-init.tar.gz)
### Relevant output and stacktrace
```shell
Exception in thread "main" java.lang.NullPointerException
at org.apache.jena.query.ARQ.isTrue(ARQ.java:680)
at
org.apache.jena.sparql.lang.QueryParserBase.<init>(QueryParserBase.java:322)
at
org.apache.jena.sparql.lang.SPARQLParserBase.<init>(SPARQLParserBase.java:40)
at
org.apache.jena.sparql.lang.arq.ARQParserBase.<init>(ARQParserBase.java:35)
at
org.apache.jena.sparql.lang.arq.ARQParser.<init>(ARQParser.java:8071)
at org.apache.jena.sparql.lang.ParserARQ.perform(ParserARQ.java:90)
at org.apache.jena.sparql.lang.ParserARQ.parse$(ParserARQ.java:52)
at
org.apache.jena.sparql.lang.SPARQLParser.parse(SPARQLParser.java:33)
at org.apache.jena.query.QueryFactory.parse(QueryFactory.java:144)
at org.apache.jena.query.QueryFactory.create(QueryFactory.java:83)
at org.apache.jena.query.QueryFactory.create(QueryFactory.java:56)
at org.apache.jena.query.QueryFactory.create(QueryFactory.java:44)
at
org.apache.jena.http.sys.ExecHTTPBuilder.query(ExecHTTPBuilder.java:89)
at
com.gitlab.sszuev.investigation.JenaInitInvestigation.main(JenaInitInvestigation.kt:17)
```
### Are you interested in making a pull request?
_No response_
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