我正在尝试使用扩展“org.apache.camel.test.junit4.CamelTestSupport”的单元测试。当我从mvn命令行运行测试时，它失败了“java.lang.NoClassDefFoundError：org / junit / rules / TestWatcher”。我在Eclipse中运行测试时遇到同样的错误。
从一些挖掘中，我发现这个“TestWatcher”类存在于JUnit 4.12中，但后来被替换为“TestWatchman”类。我们的构建使用JUnit 4.8.1。似乎我们的一个或多个依赖项最终试图引用这个旧的“TestWatcher”类。
在Eclipse中，就像一个实验一样，我尝试手动将JUnit 4.12 jar添加到类路径的末尾，并且在此之后，它就会遇到这个问题。这显然不是一个可行的解决方法（在类路径中同时具有JUnit 4.8.1和JUnit 4.12），但这是一些信息。
我看到的完整堆栈跟踪如下：
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test (default-test) on project ...: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.19.1:test failed: There was an error in the forked process
[ERROR] java.lang.NoClassDefFoundError: org/junit/rules/TestWatcher
[ERROR] at java.lang.ClassLoader.defineClass1(Native Method)
[ERROR] at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
[ERROR] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[ERROR] at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
[ERROR] at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
[ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
[ERROR] at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
[ERROR] at java.security.AccessController.doPrivileged(Native Method)
[ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
[ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
[ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[ERROR] at java.lang.Class.getDeclaredMethods0(Native Method)
[ERROR] at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
[ERROR] at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
[ERROR] at java.lang.Class.getMethod0(Class.java:3018)
[ERROR] at java.lang.Class.privateGetMethodRecursive(Class.java:3058)
[ERROR] at java.lang.Class.getMethod0(Class.java:3018)
[ERROR] at java.lang.Class.getMethod(Class.java:1784)
[ERROR] at org.apache.maven.surefire.util.ReflectionUtils.tryGetMethod(ReflectionUtils.java:61)
[ERROR] at org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isSuiteOnly(JUnit3TestChecker.java:64)
[ERROR] at org.apache.maven.surefire.common.junit3.JUnit3TestChecker.isValidJUnit3Test(JUnit3TestChecker.java:59)
[ERROR] at org.apache.maven.surefire.common.junit3.JUnit3TestChecker.accept(JUnit3TestChecker.java:54)
[ERROR] at org.apache.maven.surefire.common.junit4.JUnit4TestChecker.accept(JUnit4TestChecker.java:52)
[ERROR] at org.apache.maven.surefire.util.DefaultScanResult.applyFilter(DefaultScanResult.java:98)
[ERROR] at org.apache.maven.surefire.junit4.JUnit4Provider.scanClassPath(JUnit4Provider.java:311)
[ERROR] at org.apache.maven.surefire.junit4.JUnit4Provider.setTestsToRun(JUnit4Provider.java:191)
[ERROR] at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:134)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
[ERROR] Caused by: java.lang.ClassNotFoundException: org.junit.rules.TestWatcher
[ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
[ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
[ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[ERROR] ... 31 more
“依赖：树”输出如下（对我的项目和公司进行了一些调查）：
[INFO] com.mycomp.proj:proj-rt-order-post:bundle:5.0.0-SNAPSHOT
[INFO] +- com.mycomp.proj:proj-rt-common-util:jar:5.0.0-SNAPSHOT:compile
[INFO] | +- org.apache.httpcomponents:httpclient:jar:4.5.2:compile
[INFO] | | \- commons-codec:commons-codec:jar:1.10:compile
[INFO] | +- org.apache.httpcomponents:httpcore:jar:4.4.4:compile
[INFO] | +- com.mycomp.dets.cosc:cosc-feature:bundle:1.3.3:compile
[INFO] | \- com.mycomp.proj:proj-comn-utils:jar:5.0.0-SNAPSHOT:compile
[INFO] | +- com.mycomp.proj:proj-data-models:jar:5.0.0-SNAPSHOT:compile
[INFO] | +- com.mycomp.proj:proj-data-models-v2_1:jar:2.0.0-RELEASE:compile
[INFO] | +- commons-httpclient:commons-httpclient:jar:3.1:compile
[INFO] | +- log4j:log4j:jar:1.2.17.redhat-1:compile
[INFO] | +- org.slf4j:slf4j-log4j12:jar:1.7.7.redhat-2:compile
[INFO] | +- org.apache.camel:camel-jasypt:jar:2.17.0.redhat-630187:compile
[INFO] | | \- org.jasypt:jasypt:jar:1.9.3.redhat_3:compile
[INFO] | +- org.apache.camel:camel-cxf:jar:2.17.0.redhat-630187:compile
[INFO] | | +- org.apache.camel:camel-cxf-transport:jar:2.17.0.redhat-630187:compile
[INFO] | | +- org.apache.cxf:cxf-rt-frontend-jaxrs:jar:3.1.5:compile
[INFO] | | | +- org.apache.cxf:cxf-core:jar:3.1.5:compile
[INFO] | | | | \- org.apache.ws.xmlschema:xmlschema-core:jar:2.2.1:compile
[INFO] | | | +- javax.annotation:javax.annotation-api:jar:1.2:compile
[INFO] | | | \- org.apache.cxf:cxf-rt-transports-http:jar:3.1.5.redhat-630187:compile
[INFO] | | +- org.apache.cxf:cxf-rt-frontend-jaxws:jar:3.1.5.redhat-630187:compile
[INFO] | | | +- xml-resolver:xml-resolver:jar:1.2.0.redhat-10:compile
[INFO] | | | +- org.ow2.asm:asm:jar:5.0.4:compile
[INFO] | | | +- org.apache.cxf:cxf-rt-bindings-xml:jar:3.1.5.redhat-630187:compile
[INFO] | | | +- org.apache.cxf:cxf-rt-frontend-simple:jar:3.1.5.redhat-630187:compile
[INFO] | | | \- org.apache.cxf:cxf-rt-ws-addr:jar:3.1.5.redhat-630187:compile
[INFO] | | | \- org.apache.cxf:cxf-rt-ws-policy:jar:3.1.5.redhat-630187:compile
[INFO] | | | \- org.apache.neethi:neethi:jar:3.0.3.redhat-1:compile
[INFO] | | +- org.apache.cxf:cxf-rt-rs-security-oauth:jar:3.1.5.redhat-630187:compile
[INFO] | | | +- org.apache.cxf:cxf-rt-rs-client:jar:3.1.5.redhat-630187:compile
[INFO] | | | \- net.oauth.core:oauth-provider:jar:20100527:compile
[INFO] | | | \- net.oauth.core:oauth:jar:20100527:compile
[INFO] | | \- org.apache.cxf:cxf-rt-bindings-soap:jar:3.1.5.redhat-630187:compile
[INFO] | | +- org.apache.cxf:cxf-rt-wsdl:jar:3.1.5.redhat-630187:compile
[INFO] | | | \- wsdl4j:wsdl4j:jar:1.6.3.redhat-1:compile
[INFO] | | \- org.apache.cxf:cxf-rt-databinding-jaxb:jar:3.1.5.redhat-630187:compile
[INFO] | +- org.apache.camel:camel-sql:jar:2.17.0.redhat-630187:compile
[INFO] | | \- org.springframework:spring-jdbc:jar:3.2.16.RELEASE:compile
[INFO] | +- org.apache.camel:camel-cassandraql:jar:2.17.0.redhat-630187:compile
[INFO] | | \- com.datastax.cassandra:cassandra-driver-core:jar:3.1.0:compile
[INFO] | | +- io.netty:netty-handler:jar:4.0.37.Final:compile
[INFO] | | | +- io.netty:netty-buffer:jar:4.0.37.Final:compile
[INFO] | | | | \- io.netty:netty-common:jar:4.0.37.Final:compile
[INFO] | | | +- io.netty:netty-transport:jar:4.0.37.Final:compile
[INFO] | | | \- io.netty:netty-codec:jar:4.0.37.Final:compile
[INFO] | | +- com.google.guava:guava:jar:18.0.0.redhat-1:compile
[INFO] | | +- io.dropwizard.metrics:metrics-core:jar:3.1.2:compile
[INFO] | | +- com.github.jnr:jnr-ffi:jar:2.0.7:compile
[INFO] | | | +- com.github.jnr:jffi:jar:1.2.10:compile
[INFO] | | | +- com.github.jnr:jffi:jar:native:1.2.10:runtime
[INFO] | | | +- org.ow2.asm:asm-commons:jar:5.0.3:compile
[INFO] | | | +- org.ow2.asm:asm-analysis:jar:5.0.3:compile
[INFO] | | | +- org.ow2.asm:asm-tree:jar:5.0.3:compile
[INFO] | | | +- org.ow2.asm:asm-util:jar:5.0.3:compile
[INFO] | | | \- com.github.jnr:jnr-x86asm:jar:1.0.2:compile
[INFO] | | \- com.github.jnr:jnr-posix:jar:3.0.27:compile
[INFO] | | \- com.github.jnr:jnr-constants:jar:0.9.0:compile
[INFO] | +- org.apache.servicemix.bundles:org.apache.servicemix.bundles.spring-web:jar:3.2.16.RELEASE_1:compile
[INFO] | \- org.apache.commons:commons-lang3:jar:3.4:compile
[INFO] +- org.osgi:org.osgi.core:jar:5.0.0:provided
[INFO] +- org.osgi:org.osgi.compendium:jar:5.0.0:provided
[INFO] +- junit:junit:jar:4.8.1:test
[INFO] +- org.mockito:mockito-core:jar:1.10.19:test
[INFO] | +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO] | \- org.objenesis:objenesis:jar:2.1:test
[INFO] +- org.slf4j:slf4j-api:jar:1.7.6:provided
[INFO] +- org.apache.aries.blueprint:org.apache.aries.blueprint.annotation.api:jar:1.0.0:provided
[INFO] +- org.ops4j.pax.exam:pax-exam-junit4:jar:4.9.1:test
[INFO] | +- org.ops4j.pax.exam:pax-exam-spi:jar:4.9.1:test
[INFO] | | \- org.ops4j.pax.tinybundles:tinybundles:jar:2.0.0:test
[INFO] | | \- biz.aQute.bnd:bndlib:jar:2.1.0:test
[INFO] | \- org.ops4j.base:ops4j-base-lang:jar:1.5.0:test
[INFO] +- org.ops4j.pax.exam:pax-exam-container-karaf:jar:4.9.1:test
[INFO] | +- org.ops4j.pax.exam:pax-exam-container-remote:jar:4.9.1:test
[INFO] | | +- org.ops4j.pax.exam:pax-exam-container-rbc-client:jar:4.9.1:test
[INFO] | | | \- org.ops4j.pax.exam:pax-exam-container-rbc:jar:4.9.1:test
[INFO] | | +- org.ops4j.pax.swissbox:pax-swissbox-core:jar:1.8.2:test
[INFO] | | | \- org.ops4j.pax.swissbox:pax-swissbox-lifecycle:jar:1.8.2:test
[INFO] | | \- org.ops4j.base:ops4j-base-net:jar:1.5.0:test
[INFO] | +- org.apache.commons:commons-compress:jar:1.6:test
[INFO] | | \- org.tukaani:xz:jar:1.4:test
[INFO] | +- org.ops4j.pax.swissbox:pax-swissbox-framework:jar:1.8.2:test
[INFO] | | +- org.ops4j.pax.swissbox:pax-swissbox-tracker:jar:1.8.2:test
[INFO] | | +- org.ops4j.base:ops4j-base-exec:jar:1.5.0:test
[INFO] | | +- org.ops4j.base:ops4j-base-io:jar:1.5.0:test
[INFO] | | \- org.ops4j.base:ops4j-base-monitors:jar:1.5.0:test
[INFO] | \- org.ops4j.base:ops4j-base-spi:jar:1.5.0:test
[INFO] +- org.apache.karaf:apache-karaf:zip:4.0.5:compile
[INFO] | +- org.apache.karaf.features:framework:kar:4.0.5:compile
[INFO] | | +- org.apache.karaf.features:base:jar:4.0.5:runtime
[INFO] | | +- org.apache.karaf:org.apache.karaf.main:jar:2.4.0.redhat-630187:runtime
[INFO] | | | \- org.apache.karaf:org.apache.karaf.util:jar:2.4.0.redhat-630187:compile
[INFO] | | +- org.apache.karaf:org.apache.karaf.exception:jar:2.4.0.redhat-630187:runtime
[INFO] | | +- org.apache.karaf:org.apache.karaf.client:jar:2.4.0.redhat-630187:runtime
[INFO] | | | +- org.apache.sshd:sshd-core:jar:0.14.0:compile
[INFO] | | | +- org.apache.karaf.shell:org.apache.karaf.shell.console:jar:2.4.0.redhat-630187:compile
[INFO] | | | +- org.fusesource.jansi:jansi:jar:1.11.redhat-1:compile
[INFO] | | | +- org.apache.karaf.jaas:org.apache.karaf.jaas.modules:jar:2.4.0.redhat-630187:compile
[INFO] | | | +- org.apache.karaf.jaas:org.apache.karaf.jaas.config:jar:2.4.0.redhat-630187:compile
[INFO] | | | +- org.apache.felix:org.apache.felix.utils:jar:1.8.0:compile
[INFO] | | | +- org.apache.aries.blueprint:org.apache.aries.blueprint.core:jar:1.4.5:compile
[INFO] | | | +- org.apache.aries.blueprint:org.apache.aries.blueprint.api:jar:1.0.1:compile
[INFO] | | | +- org.apache.aries.quiesce:org.apache.aries.quiesce.api:jar:1.0.0:compile
[INFO] | | | +- org.apache.felix:org.apache.felix.gogo.runtime:jar:0.12.1:compile
[INFO] | | | \- org.slf4j:slf4j-simple:jar:1.7.7.redhat-2:runtime
[INFO] | | +- org.apache.karaf.jaas:org.apache.karaf.jaas.boot:jar:2.4.0.redhat-630187:compile
[INFO] | | +- org.apache.karaf.diagnostic:org.apache.karaf.diagnostic.boot:jar:4.0.5:runtime
[INFO] | | +- org.eclipse.birt.runtime:org.eclipse.osgi:jar:3.10.2.v20150203-1939:runtime
[INFO] | | +- org.apache.felix:org.apache.felix.framework:jar:4.4.1:runtime
[INFO] | | +- jline:jline:jar:2.12.1.redhat-002:compile
[INFO] | | +- org.jledit:core:jar:0.2.1:compile
[INFO] | | +- org.ops4j.pax.logging:pax-logging-api:jar:1.8.5:compile
[INFO] | | +- org.ops4j.pax.logging:pax-logging-service:jar:1.8.5:compile
[INFO] | | +- org.ops4j.pax.url:pax-url-aether:jar:2.4.7:compile
[INFO] | | \- org.apache.karaf.features:org.apache.karaf.features.core:jar:2.4.0.redhat-630187:compile
[INFO] | | +- org.apache.felix:org.apache.felix.bundlerepository:jar:2.0.4:compile
[INFO] | | \- org.apache.karaf.shell:org.apache.karaf.shell.obr:jar:2.4.0.redhat-630187:compile
[INFO] | +- org.apache.karaf.features:framework:xml:features:4.0.5:runtime
[INFO] | +- org.apache.karaf.features:standard:xml:features:4.0.5:compile
[INFO] | +- org.apache.karaf.features:spring:xml:features:4.0.5:runtime
[INFO] | \- org.apache.karaf.features:enterprise:xml:features:4.0.5:runtime
[INFO] +- org.ops4j.pax.exam:pax-exam:jar:4.9.1:test
[INFO] | +- org.ops4j.base:ops4j-base-store:jar:1.5.0:test
[INFO] | \- org.ops4j.base:ops4j-base-util-property:jar:1.5.0:test
[INFO] +- org.apache.camel:camel-core:jar:2.17.0.redhat-630187:provided
[INFO] | +- com.sun.xml.bind:jaxb-core:jar:2.2.11:compile
[INFO] | \- com.sun.xml.bind:jaxb-impl:jar:2.2.11.redhat-2:compile
[INFO] +- org.apache.camel:camel-blueprint:jar:2.17.0.redhat-630187:provided
[INFO] | +- org.apache.camel:camel-core-xml:jar:2.17.0.redhat-630187:provided
[INFO] | \- org.apache.camel:camel-core-osgi:jar:2.17.0.redhat-630187:provided
[INFO] +- org.apache.camel:camel-jms:jar:2.17.0.redhat-630187:provided
[INFO] | +- org.apache.camel:camel-spring:jar:2.17.0.redhat-630187:compile
[INFO] | | +- org.springframework:spring-core:jar:3.2.16.RELEASE:compile
[INFO] | | +- org.springframework:spring-aop:jar:3.2.16.RELEASE:compile
[INFO] | | | \- aopalliance:aopalliance:jar:1.0:compile
[INFO] | | \- org.springframework:spring-expression:jar:3.2.16.RELEASE:compile
[INFO] | +- org.springframework:spring-jms:jar:3.2.16.RELEASE:provided
[INFO] | +- org.springframework:spring-context:jar:3.2.16.RELEASE:compile
[INFO] | +- org.springframework:spring-tx:jar:3.2.16.RELEASE:compile
[INFO] | \- org.springframework:spring-beans:jar:3.2.16.RELEASE:compile
[INFO] +- org.apache.camel:camel-jaxb:jar:2.17.0.redhat-630187:provided
[INFO] +- org.apache.camel:camel-test:jar:2.17.0.redhat-630187:test
[INFO] +- commons-logging:commons-logging:jar:1.2:provided
[INFO] +- commons-lang:commons-lang:jar:2.6:provided
[INFO] +- commons-io:commons-io:jar:2.4:provided
[INFO] +- org.apache.camel:camel-test-blueprint:jar:2.13.0:test
[INFO] | +- org.apache.aries.blueprint:org.apache.aries.blueprint:jar:1.1.0:test
[INFO] | +- org.apache.aries:org.apache.aries.util:jar:1.1.0:compile
[INFO] | +- org.apache.aries.proxy:org.apache.aries.proxy.impl:jar:1.0.5:test
[INFO] | +- org.apache.aries.proxy:org.apache.aries.proxy.api:jar:1.0.1:compile
[INFO] | +- com.googlecode.pojosr:de.kalpatec.pojosr.framework:jar:0.2.1:test
[INFO] | +- org.ops4j.pax.swissbox:pax-swissbox-tinybundles:jar:1.3.2:test
[INFO] | | \- org.ops4j.pax.swissbox:pax-swissbox-bnd:jar:1.8.2:test
[INFO] | +- org.apache.felix:org.apache.felix.configadmin:jar:1.8.4:compile
[INFO] | \- org.apache.felix:org.apache.felix.fileinstall:jar:3.5.0:compile
[INFO] +- org.apache.camel:camel-jackson:jar:2.17.0.redhat-630187:provided
[INFO] | \- com.fasterxml.jackson.module:jackson-module-jaxb-annotations:jar:2.6.3:provided
[INFO] +- org.apache.camel:camel-jsonpath:jar:2.17.0.redhat-630187:provided
[INFO] +- org.apache.camel:camel-jolt:jar:2.17.0.redhat-630187:provided
[INFO] +- org.apache.camel:camel-quartz2:jar:2.17.0.redhat-630187:provided
[INFO] | +- org.quartz-scheduler:quartz:jar:2.2.2:provided
[INFO] | | \- c3p0:c3p0:jar:0.9.1.1:provided
[INFO] | \- com.mchange:c3p0:jar:0.9.5.2:provided
[INFO] | \- com.mchange:mchange-commons-java:jar:0.2.11:provided
[INFO] +- org.apache.camel:camel-xmljson:jar:2.17.0.redhat-630187:provided
[INFO] | \- net.sf.json-lib:json-lib:jar:jdk15:2.4:provided
[INFO] | +- commons-beanutils:commons-beanutils:jar:1.9.2.redhat-1:provided
[INFO] | \- net.sf.ezmorph:ezmorph:jar:1.0.6:provided
[INFO] +- com.mycomp.dets.cosc.hazelcast:hazelcast-enterprise-all:jar:3.7.2:provided
[INFO] +- com.jayway.jsonpath:json-path:jar:2.0.0:provided
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.7.1:provided
[INFO] +- com.fasterxml.jackson.core:jackson-core:jar:2.7.1:provided
[INFO] +- com.fasterxml.jackson.core:jackson-annotations:jar:2.7.1:provided
[INFO] +- com.bazaarvoice.jolt:jolt-core:jar:0.0.16:provided
[INFO] | \- javax.inject:javax.inject:jar:1:provided
[INFO] +- com.bazaarvoice.jolt:json-utils:jar:0.0.16:provided
[INFO] +- net.minidev:json-smart:jar:2.1.1:provided
[INFO] +- net.minidev:asm:jar:1.0.2:provided
[INFO] | \- asm:asm:jar:3.3.1:provided
[INFO] +- com.google.code.gson:gson:jar:2.3.1:provided
[INFO] +- org.json:json:jar:20160810:provided
[INFO] +- commons-collections:commons-collections:jar:3.2.1:provided
[INFO] +- com.mycomp.aft:dme2:jar:2.8.8.1:provided
[INFO] | +- javax.jms:jms:jar:1.1:provided
[INFO] | +- com.mycomp.aft.discovery:discovery-clt:jar:5.1.3-01:provided
[INFO] | | \- backport-util-concurrent:backport-util-concurrent:jar:3.1:provided
[INFO] | \- javax.servlet:javax.servlet-api:jar:3.1.0.redhat-1:compile
[INFO] +- com.zaxxer:HikariCP:jar:1.3.8:provided
[INFO] | \- org.javassist:javassist:jar:3.18.1-GA:provided
[INFO] +- org.apache.activemq:activemq-client:jar:5.11.0:provided
[INFO] | +- org.apache.geronimo.specs:geronimo-jms_1.1_spec:jar:1.1.1:provided
[INFO] | +- org.fusesource.hawtbuf:hawtbuf:jar:1.11.0.redhat-1:provided
[INFO] | \- org.apache.geronimo.specs:geronimo-j2ee-management_1.1_spec:jar:1.0.1:provided
[INFO] +- org.apache.activemq:activemq-pool:jar:5.11.0:provided
[INFO] | +- org.apache.activemq:activemq-jms-pool:jar:5.11.0.redhat-630187:provided
[INFO] | +- org.apache.geronimo.specs:geronimo-jta_1.0.1B_spec:jar:1.0.1:provided
[INFO] | \- commons-pool:commons-pool:jar:1.6.0.redhat-9:provided
[INFO] \- xom:xom:jar:1.2.5:provided
[INFO] +- xml-apis:xml-apis:jar:1.4.01:provided
[INFO] +- xerces:xercesImpl:jar:2.11.0.SP4-redhat-1:provided
[INFO] \- xalan:xalan:jar:2.7.2:provided
[INFO] \- xalan:serializer:jar:2.7.2:provided
我尝试在启用“-verbose：class”的情况下运行测试，但这并没有给我任何用处。我仍然不知道是什么试图引用“TestWatcher”类。