使用Jenkins 生成 Allure 报告时出现Exception in thread "main" java.lang.OutOfMemoryError: Java heap space 错误

错误：

[Montage_API_Git] $ C:\Jenkins\tools\ru.yandex.qatools.allure.jenkins.tools.AllureCommandlineInstallation\Allure\bin\allure.bat generate C:\Jenkins\workspace\Montage_API_Git\allure-results -c -o C:\Jenkins\workspace\Montage_API_Git\allure-report
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at java.lang.AbstractStringBuilder.<init>(Unknown Source)
at java.lang.StringBuilder.<init>(Unknown Source)
at com.fasterxml.jackson.core.util.TextBuffer.contentsAsString(TextBuffer.java:394)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._finishAndReturnString(UTF8StreamJsonParser.java:2414)
at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.getText(UTF8StreamJsonParser.java:269)
at com.fasterxml.jackson.databind.deser.std.StringDeserializer.deserialize(StringDeserializer.java:35)
at com.fasterxml.jackson.databind.deser.std.StringDeserializer.deserialize(StringDeserializer.java:10)
at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:127)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:288)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:151)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4013)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3070)
at io.qameta.allure.allure2.Allure2Plugin.readTestResult(Allure2Plugin.java:344)
at io.qameta.allure.allure2.Allure2Plugin$$Lambda$72/20453268.apply(Unknown Source)
at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source)
at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
at java.util.stream.ReferencePipeline.forEach(Unknown Source)
at io.qameta.allure.allure2.Allure2Plugin.readResults(Allure2Plugin.java:104)
at io.qameta.allure.ReportGenerator.lambda$readResults$0(ReportGenerator.java:47)
at io.qameta.allure.ReportGenerator$$Lambda$50/7909280.accept(Unknown Source)
at java.util.ArrayList.forEach(Unknown Source)
at io.qameta.allure.ReportGenerator.readResults(ReportGenerator.java:47)
at io.qameta.allure.ReportGenerator$$Lambda$47/23717841.apply(Unknown Source)
at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source)
at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
ERROR: Build step failed with exception
ru.yandex.qatools.allure.jenkins.exception.AllurePluginException: Can not generate Allure Report, exit code: 1
at ru.yandex.qatools.allure.jenkins.AllureReportPublisher.generateReport(AllureReportPublisher.java:314)
at ru.yandex.qatools.allure.jenkins.AllureReportPublisher.perform(AllureReportPublisher.java:231)
at jenkins.tasks.SimpleBuildStep.perform(SimpleBuildStep.java:123)
at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:79)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:814)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:763)
at hudson.model.Build$BuildExecution.post2(Build.java:179)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:707)
at hudson.model.Run.execute(Run.java:1921)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44)
at hudson.model.ResourceController.execute(ResourceController.java:101)
at hudson.model.Executor.run(Executor.java:442)
Build step 'Allure Report' marked build as failure

 

原因：报告生成过程中需要的内存超出了默认值。

回避方案：

          在Jenkins所在的服务器上，找到错误提示中指出的allure.bat。  

           C:\Jenkins\tools\ru.yandex.qatools.allure.jenkins.tools.AllureCommandlineInstallation\Allure\bin\allure.bat

           修改bat中的配置,将原来的空值调整为 -Xmx1G  就可以了。 

           set DEFAULT_JVM_OPTS=-Xmx1G