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

Question

我正在运行连接 Apache Jena Fuseki 服务器作为 SPARQL 端点，我可以在正常使用应用程序时连接到它。一切正常，我得到了结果查询的输出。

但是当我尝试运行使用 Springboot、Junit5（我假设）和 MockMVC 进行测试时，它总是卡在以下部分：

ResultSet setNew = exec.execSelect();

然后测试挂起，直到出现内存不足异常，使用 -Xmx 将其设置为 12G 也无法解决问题。有一些根本的事情我就是不明白。每个人都经历过这种情况吗？难道我做错了什么？是不是这个代码也有问题？

如果我需要 post 更多代码，请随时发表评论。我改变了很多东西试图让它工作，但无济于事。我还必须从 gradle 中取消注释 Jacoco 测试套件，因为它也挂在 Jacoco 测试上。所以我认为它与无限循环有关，但我没有看到它。

我确实是有生以来第一次开始使用流，也许这就是问题所在？（主要是我没有在此处 post 编写的代码）。

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 工作人员）

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

在运行正常应用程序时记录：

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 turtle 文件，其中包含 Fuseki 中使用的数据。

@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

我找到的答案是堆大小不断溢出。添加行：

maxHeapSize '2g'

到我 build.gradle 的测试区解决了问题（虽然我仍然不知道为什么会这样）。

完成build.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**"
                ]
    }
}

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

Out of Memory Exception when trying to execute test for Apache Jena via MockMVC and Junit5

java

spring-boot

junit5

jena

mockmvc