如何解决使用powermockito时Out of memory/PermGen space问题+ cobertura .
当我在测试用例上运行 mvn cobertura:cobertura 时，出现如下异常:
Exception in thread "Thread-14" java.lang.OutOfMemoryError: PermGen space
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at org.powermock.core.classloader.MockClassLoader.loadUnmockedClass(Mock
ClassLoader.java:250)
at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(Mock
ClassLoader.java:194)
at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(D
eferSupportingClassLoader.java:71)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at net.sourceforge.cobertura.coveragedata.ProjectData.getOrCreateClassDa
ta(ProjectData.java:88)
at net.sourceforge.cobertura.coveragedata.TouchCollector.applyTouchesOnP
rojectData(TouchCollector.java:109)
at net.sourceforge.cobertura.coveragedata.ProjectData.saveGlobalProjectD
ata(ProjectData.java:272)
at net.sourceforge.cobertura.coveragedata.SaveTimer.run(SaveTimer.java:3
3)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "Thread-5" java.lang.OutOfMemoryError: PermGen space
at net.sourceforge.cobertura.coveragedata.ProjectData.addClassData(Proje
ctData.java:64)
at net.sourceforge.cobertura.coveragedata.ProjectData.getOrCreateClassDa
ta(ProjectData.java:89)
at net.sourceforge.cobertura.coveragedata.TouchCollector.applyTouchesOnP
rojectData(TouchCollector.java:109)
at net.sourceforge.cobertura.coveragedata.ProjectData.saveGlobalProjectD
ata(ProjectData.java:272)
at net.sourceforge.cobertura.coveragedata.SaveTimer.run(SaveTimer.java:3
3)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "Thread-22" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-15" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-6" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-11" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-10" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-7" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-13" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-3" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-12" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-1" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-2" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-24" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-0" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-4" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-8" java.lang.OutOfMemoryError: PermGen space
Exception in thread "Thread-25" java.lang.OutOfMemoryError: PermGen space
我尝试使用以下 cobertura 属性添加最大内存，如 cobertura-mojo 中所述:
<cobertura.maxmem>1024m</cobertura.maxmem>
但它没有按预期工作，
我可以看到很少有 Unresolved 问题 Issue-227 , Issue-520在PowerMock repository ,
我尝试使用下面的注释添加忽略包，但如果测试类的数量更多，它就不起作用。 @PowerMockIgnore({"com.package.*"})
pom.xml
<dependencies>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.10.19</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>1.6.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito</artifactId>
<version>1.6.5</version>
<scope>test</scope>
</dependency>
</dependencies>
</build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>-Xmx1624m</argLine>
<redirectTestOutputToFile>true</redirectTestOutputToFile>
<!--<argLine>-Xmx600m -XX:+HeapDumpOnOutOfMemoryError</argLine> -->
<forkCount>10</forkCount>
<reuseForks>true</reuseForks>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>cobertura-maven-plugin</artifactId>
<version>2.7</version>
<configuration>
<quiet>true</quiet>
<cobertura.maxmem>1024m</cobertura.maxmem>
<instrumentation>
<maxmem>1024m</maxmem>
</instrumentation>
<!-- <argLine>-Xms512m -Xmx2048m -XX:MaxPermSize=1024m</argLine> -->
<!-- <argLine>-Xmx2048m</argLine> -->
</configuration>
<executions>
<execution>
<id>clean</id>
<phase>pre-site</phase>
<goals>
<goal>clean</goal>
</goals>
</execution>
<execution>
<id>instrument</id>
<phase>site</phase>
<goals>
<goal>instrument</goal>
<goal>cobertura</goal>
</goals>
</execution>
</executions>
</plugin>
.......
</plugins>
</build>
<reporting>
<plugins>
<plugin>
<!-- using mvn cobertura:cobertura to generate cobertura reports -->
<groupId>org.codehaus.mojo</groupId>
<artifactId>cobertura-maven-plugin</artifactId>
<version>2.7</version>
<configuration>
<formats>
<format>html</format>
<format>xml</format>
</formats>
</configuration>
</plugin>
</plugins>
</reporting>
如果有任何解决方法，请告诉我。
最佳答案
请添加 <version>2.19.1</version> 至 maven-surefire-plugin在 pom.xml 中，它应该可以正常工作。
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<argLine>-Xmx1624m</argLine>
<redirectTestOutputToFile>true</redirectTestOutputToFile>
</configuration>
</plugin>
关于java - 使用 PowerMockito 运行 Cobertura 抛出 java.lang.OutOfMemoryError : PermGen space，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38587316/