"如何解决“java.lang.NoClassDefFoundError：io\/reactivex\/rxjava3\/core\/Observer”"

Question

我正在尝试使用 testNG 运行套件，但出现此错误：我在此站点和网络上搜索有关此问题的一些信息，但没有成功。

[RemoteTestNG] detected TestNG version 7.4.0
java.lang.NoClassDefFoundError: io/reactivex/rxjava3/core/Observer
    at resources.ExtentReporterNG.getReportObject(ExtentReporterNG.java:14)
    at ShufersalMiron.Sprod.Listeners.<init>(Listeners.java:22)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
    at java.base/java.lang.reflect.ReflectAccess.newInstance(ReflectAccess.java:128)
    at java.base/jdk.internal.reflect.ReflectionFactory.newInstance(ReflectionFactory.java:350)
    at java.base/java.lang.Class.newInstance(Class.java:645)
    at org.testng.internal.InstanceCreator.newInstance(InstanceCreator.java:30)
    at org.testng.TestNG.addListeners(TestNG.java:964)
    at org.testng.TestNG.initializeConfiguration(TestNG.java:924)
    at org.testng.TestNG.initializeEverything(TestNG.java:1012)
    at org.testng.remote.support.RemoteTestNG6_12.initialize(RemoteTestNG6_12.java:22)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:98)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
Caused by: java.lang.ClassNotFoundException: io.reactivex.rxjava3.core.Observer
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
    ... 17 more

Answer 1

这个问题看起来与 TestNG 无关。

它刚刚出现在 TestNG 生命周期中，因此错误中提到了 testng。

引发错误的行是：

at resources.ExtentReporterNG.getReportObject(ExtentReporterNG.java:14)