android - 将 Android Studio 更新到 ArticFox 后运行单元测试时出现 NoClassDefFoundError | 2020.3.1

Question

未收到测试事件错误:

NoClassDefFoundError on running unit test after updating android studio to ArticFox | 2020.3.1.

下面是完整的错误:

java.lang.NoClassDefFoundError: jdk/internal/reflect/GeneratedSerializationConstructorAccessor1
at jdk.internal.reflect.GeneratedSerializationConstructorAccessor1.newInstance(Unknown Source)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at java.base/java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:1092)
at java.base/java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2180)
at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1679)
at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:493)
at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:451)
at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122)
at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:69)
at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:68)
at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:73)

Caused by: java.lang.ClassNotFoundException: jdk.internal.reflect.GeneratedSerializationConstructorAccessor1
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
... 11 more

我刚刚下载了最新的 android studio，克隆了一个项目并尝试运行单元测试。

我该如何解决这个问题？我正在使用嵌入式 JDK(即 Java 11.0)。

Answer 1

这是由于 jacoco 而发生的。最新的 android studio 附带 Java 11，但我们使用的是 Java 9。进行以下更改修复了它。

jacoco { includeNoLocationClasses = true }

到

jacoco {
   includeNoLocationClasses = true
   excludes = ['jdk.internal.*'] 
}