java.lang.OutOfMemoryError：我运行 maven 测试时的 Java 堆空间

Question

您好，我有一个 spring boot 项目并使用 maven。但是，当我运行测试时，出现以下错误

java.lang.OutOfMemoryError: Java heap space
    at java.util.Arrays.copyOf(Arrays.java:3332)
    at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:124)
    at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:596)
    at java.lang.StringBuffer.append(StringBuffer.java:367)
    at java.io.StringWriter.write(StringWriter.java:94)
    at com.thoughtworks.xstream.core.util.QuickWriter.flush(QuickWriter.java:73)
    at com.thoughtworks.xstream.io.xml.PrettyPrintWriter.flush(PrettyPrintWriter.java:346)
    at com.thoughtworks.xstream.XStream.toXML(XStream.java:1283)
    at com.thoughtworks.xstream.XStream.toXML(XStream.java:1268)
    at org.powermock.classloading.DeepCloner.clone(DeepCloner.java:57)
    at org.powermock.classloading.AbstractClassloaderExecutor.executeWithClassLoader(AbstractClassloaderExecutor.java:53)
    at org.powermock.classloading.SingleClassloaderExecutor.execute(SingleClassloaderExecutor.java:33)
    at org.powermock.classloading.AbstractClassloaderExecutor.execute(AbstractClassloaderExecutor.java:40)
    at org.powermock.modules.junit4.rule.PowerMockStatement.evaluate(PowerMockRule.java:75)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at com.github.tomakehurst.wiremock.junit.WireMockRule$1.evaluate(WireMockRule.java:73)
    at org.junit.rules.RunRules.evaluate(RunRules.java:20)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)

请找到 pom.xml 配置。我正在使用 maven sure fire 插件版本 2.18.1

2.18.1

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>${maven-surefire-plugin.version}</version>
            <configuration>
                <!-- Force alphabetical order to have a reproducible build -->
                <runOrder>alphabetical</runOrder>
                 <forkCount>1</forkCount>
                 <argLine>-Xmx1024m</argLine>
            <redirectTestOutputToFile>true</redirectTestOutputToFile>
            </configuration>

        </plugin>

知道如何解决这个问题 谢谢你

Answer 1

替换

<argLine>-Xmx1024m</argLine>

类似

<argLine>-Xmx2048m</argLine>

为测试提供更多内存。