Не удалось преобразовать org.apache.hadoop.fs.FileSystem$Cache. Класс org.apache.hadoop.fs.FileSystem$Cache$Key замороже ⇐ JAVA

[Anonymous]

Я пытаюсь имитировать файловую систему Hadoop в своем тесте Scala. Есть идеи, как это обойти:
import java.net.URI
import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.fs.FileSystem
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.ArgumentMatchers.any
import org.mockito.Mockito._
import org.powermock.api.mockito.PowerMockito
import org.powermock.core.classloader.annotations.PrepareForTest
import org.powermock.modules.junit4.PowerMockRunner

@RunWith(classOf[PowerMockRunner])
@PrepareForTest(Array(classOf[FileSystem]))
class SimpleFileSystemTest {

@Test
def testMockStaticFileSystem(): Unit = {
// Mock static method FileSystem.get()
PowerMockito.mockStatic(classOf[FileSystem])
val mockFileSystem = mock(classOf[FileSystem])

// Define behavior of FileSystem.get()
when(FileSystem.get(any(classOf[URI]), any(classOf[Configuration]))).thenReturn(mockFileSystem)

// Add simple assertions to verify the behavior
val uri = new URI("s3a://bucket")
val conf = new Configuration()

// Verify that the mocked FileSystem is returned
val fileSystem = FileSystem.get(uri, conf)
assert(fileSystem eq mockFileSystem)

// Verify that the static method was called
PowerMockito.verifyStatic(classOf[FileSystem], times(1))
FileSystem.get(uri, conf)
}
}

но я получаю это исключение:
org.mockito.exceptions.base.MockitoException:
Mockito cannot mock this class: class org.apache.hadoop.fs.FileSystem.

Mockito can only mock non-private & non-final classes.
If you're not sure why you're getting this error, please report to the mailing list.

Java : 1.8
JVM vendor name : Amazon.com Inc.
JVM vendor version : 25.422-b05
JVM name : OpenJDK 64-Bit Server VM
JVM version : 1.8.0_422-b05
JVM info : mixed mode
OS name : Mac OS X
OS version : 14.7

Underlying exception : java.lang.IllegalStateException: Failed to transform class with name org.apache.hadoop.fs.FileSystem$Cache. Reason: org.apache.hadoop.fs.FileSystem$Cache$Key class is frozen

at SimpleFileSystemTest.testMockStaticFileSystem(SimpleFileSystemTest.scala:19)
at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
Caused by: java.lang.IllegalStateException: Failed to transform class with name org.apache.hadoop.fs.FileSystem$Cache. Reason: org.apache.hadoop.fs.FileSystem$Cache$Key class is frozen
at org.powermock.core.classloader.javassist.JavassistMockClassLoader.defineAndTransformClass(JavassistMockClassLoader.java:119)
at org.powermock.core.classloader.MockClassLoader.loadMockClass(MockClassLoader.java:174)
at org.powermock.core.classloader.MockClassLoader.loadClassByThisClassLoader(MockClassLoader.java:102)
at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass1(DeferSupportingClassLoader.java:147)
at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:98)

Это мои зависимости:
libraryDependencies ++= Seq(
"org.slf4j" % "slf4j-api" % "2.0.7" % "provided",
"com.google.guava" % "guava" % "32.1.2-jre" % "test",
"org.scalatest" %% "scalatest" % "3.2.16" % "test",
"org.scalatestplus" %% "mockito-3-4" % "3.2.10.0" % "test",
"org.powermock" % "powermock-module-junit4" % "2.0.9" % "test",
"org.powermock" % "powermock-api-mockito2" % "2.0.9" % "test" exclude("org.mockito", "mockito-core"),
"org.mockito" % "mockito-core" % "3.12.4" % "test",


Подробнее здесь: https://stackoverflow.com/questions/790 ... -hadoop-fs