尝试通过MockMVC和Junit5执行Apache Jena测试时出现内存不足异常

Question

我正在运行Apache Jena Fuseki服务器，该服务器是我正常使用应用程序时可以连接到的SPARQL端点。一切正常，我从结果查询中获得输出。

但是，当我尝试用Springboot、Junit5(我想(和MockMVC运行测试时，它总是被以下部分卡住：

ResultSet setNew = exec.execSelect();

然后测试挂起，直到我得到一个内存不足的异常，用-Xmx将其设置为12G也不能解决这个问题。有一些潜在的东西我就是不明白。每个人都经历过这种情况吗？我做错什么了吗？甚至是这个代码有故障吗？

如果我需要发布更多代码，请随时发表评论。我改变了很多事情，试图让它发挥作用，但都无济于事。我还不得不取消对gradle的Jacobo测试套件的评论，因为它也挂在Jacobo测试上。所以我认为这与无限循环有关，但我看不出来

我有生以来第一次开始使用流媒体，也许这就是问题所在？(大部分是我没有在这里发布的代码(。

代码片段：

Sparql查询

SELECT  ?object1 ?predicate2 ?object2
WHERE
{ ?id1  ?predicate1  ?object1
FILTER ( regex(str(?predicate1), "Amsterdam", "i") || regex(str(?object1), "Amsterdam", "i") )
?id2  ?predicate2  ?object2
FILTER ( regex(str(?predicate2), "city", "i") || regex(str(?object2), "city", "i") )
}

查询代码

public ResultSet query(Query query, String endpoint) {
ResultSet resultSet = null;
log.info(String.format("Query being executed: %s on %s", query.toString(), endpoint));
try (QueryExecution exec = QueryExecutionFactory.sparqlService(endpoint, query)) {
//((QueryEngineHTTP) exec).addParam("timeout", "30000");
ResultSet setNew = exec.execSelect();
resultSet = ResultSetFactory.copyResults(setNew);
log.info("Query has been executed");
} catch (Exception e) {
log.error(e.getLocalizedMessage());
}
return resultSet;
}

我的测试

@SpringBootTest
@AutoConfigureMockMvc
class FactCheckControllerTest {
@Autowired
private MockMvc mockMvc;
@Test
void testCheckFactSuccess() throws Exception {
mockMvc.perform(post("/factcheck")
.contentType(MediaType.APPLICATION_JSON_VALUE)
.content("{"text": "Amsterdam is a city."}"))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON_VALUE));
//                .andExpect(jsonPath("$.triplets[0].subject").value("Amsterdam"))
//                .andExpect(jsonPath("$.triplets[0].predicate").value("is"))
//                .andExpect(jsonPath("$.triplets[0].object").value("small"));
}
}

启用了--stacktrace选项的错误日志(gradle worker(

FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':test'.
> Process 'Gradle Test Executor 1' finished with non-zero exit value 1
This problem might be caused by incorrect test process configuration.
Please refer to the test execution section in the User Manual at https://docs.gradle.org/6.8.3/userguide/java_testing.html#sec:test_execution
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 43s

运行正常应用程序时的日志记录：

2021-05-11 13:10:57.425  INFO 2396 --- [nio-8080-exec-2] c.s.factcheck.data.JenaRDFConnector      : Query has been executed
2021-05-11 13:10:57.425  INFO 2396 --- [nio-8080-exec-2] c.s.factcheck.domain.FactDeterminer      : Setting ResultSet!
2021-05-11 13:10:57.425  INFO 2396 --- [nio-8080-exec-2] c.s.factcheck.domain.FactDeterminer      : Checking Fact!
---------------------------------------------------------------------------------------------------------
| object1     | predicate2                                        | object2                             |
=========================================================================================================
| "Amsterdam" | <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> | <https://dbpedia.org/ontology/City> |
---------------------------------------------------------------------------------------------------------

编辑：添加了包含Fuseki中使用的数据的乌龟文件。

@prefix schema: <http://schema.org/> .
@prefix pq:    <http://www.wikidata.org/prop/qualifier/> .
@prefix bd:    <http://www.bigdata.com/rdf#> .
@prefix pr:    <http://www.wikidata.org/prop/reference/> .
@prefix ps:    <http://www.wikidata.org/prop/statement/> .
@prefix owl:   <http://www.w3.org/2002/07/owl#> .
@prefix wdt:   <http://www.wikidata.org/prop/direct/> .
@prefix wds:   <http://www.wikidata.org/entity/statement/> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .
@prefix wdv:   <http://www.wikidata.org/value/> .
@prefix skos:  <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix psn:   <http://www.wikidata.org/prop/statement/value-normalized/> .
@prefix pqn:   <http://www.wikidata.org/prop/qualifier/value-normalized/> .
@prefix wd:    <http://www.wikidata.org/entity/> .
@prefix geo:   <http://www.opengis.net/ont/geosparql#> .
@prefix psv:   <http://www.wikidata.org/prop/statement/value/> .
@prefix dct:   <http://purl.org/dc/terms/> .
@prefix pqv:   <http://www.wikidata.org/prop/qualifier/value/> .
@prefix ontolex: <http://www.w3.org/ns/lemon/ontolex#> .
@prefix wdata: <http://www.wikidata.org/wiki/Special:EntityData/> .
@prefix wdref: <http://www.wikidata.org/reference/> .
@prefix prov:  <http://www.w3.org/ns/prov#> .
@prefix cc:    <http://creativecommons.org/ns#> .
@prefix wikibase: <http://wikiba.se/ontology#> .
@prefix prn:   <http://www.wikidata.org/prop/reference/value-normalized/> .
@prefix dbo:   <https://dbpedia.org/ontology/> .
@prefix wdtn:  <http://www.wikidata.org/prop/direct-normalized/> .
@prefix p:     <http://www.wikidata.org/prop/> .
@prefix rdf:   <https://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dbr:   <https://dbpedia.org/resource/> .
@prefix prv:   <http://www.wikidata.org/prop/reference/value/> .
@prefix hint:  <http://www.bigdata.com/queryHints#> .
@prefix wdno:  <http://www.wikidata.org/prop/novalue/> .
<http://www.dataset.org/turtle/Amsterdam>
a             dbo:City ;
rdfs:label    "Amsterdam" ;
dbo:areaCode  "020" ;
dbo:country   dbr:Netherlands .
<http://www.dataset.org/turtle/ArnoldSchwarzenegger>
a           wdata:Q5 ;
rdfs:label  "Arnold Schwarzenegger" .

Answer 1

我发现的答案是堆大小不断溢出。添加行：

maxHeapSize '2g'

对于我的构建中的测试区域，.gradle解决了这个问题(不过我仍然不知道为什么会这样(。

完整构建.gradle:

plugins {
id 'org.springframework.boot' version '2.4.5'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
id 'jacoco'
id 'info.solidsoft.pitest' version '1.6.0'
id "org.sonarqube" version "3.1.1"
}
group = 'com.nlxdodge.factcheck'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'
configurations {
compileOnly {
extendsFrom annotationProcessor
}
}
repositories {
mavenCentral()
}
dependencies {
// Spring Boot Web
implementation 'org.springframework.boot:spring-boot-starter-actuator:2.4.5'
implementation 'org.springframework.boot:spring-boot-starter-web:2.4.5'
testImplementation 'org.springframework.boot:spring-boot-starter-test:2.4.5'
// Lombok Annotation Processor
compileOnly 'org.projectlombok:lombok:1.18.20'
annotationProcessor 'org.projectlombok:lombok:1.18.20'
testCompileOnly 'org.projectlombok:lombok:1.18.20'
testAnnotationProcessor 'org.projectlombok:lombok:1.18.20'
// Stanford NLP
implementation 'edu.stanford.nlp:stanford-corenlp:4.2.0'
implementation 'edu.stanford.nlp:stanford-corenlp:4.2.0:models'
implementation 'edu.stanford.nlp:stanford-corenlp:4.2.0:models-english'
// Jena
implementation 'org.apache.jena:apache-jena-libs:4.0.0'
implementation 'org.apache.jena:jena-querybuilder:4.0.0'
}
test {
useJUnitPlatform()
maxHeapSize '2g'
finalizedBy jacocoTestReport
finalizedBy 'pitest'
}
jacocoTestReport {
dependsOn test
reports {
xml.enabled = true
}
afterEvaluate {
afterEvaluate {
classDirectories.setFrom(files(classDirectories.files.collect {
fileTree(dir: it, exclude: [
'com/nlxdodge/factcheck/service/config/**',
'com/nlxdodge/factcheck/FactCheckApplication**'
])
}))
}
}
}
pitest {
junit5PluginVersion = '0.12'
targetClasses = ['com.nlxdodge.factcheck.*']
outputFormats = ['XML', 'HTML']
timestampedReports = false
}
sonarqube {
properties {
property 'sonar.exclusions',
[
"**/com/nlxdodge/factcheck/FactCheckApplication**"
]
}
}