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本文介紹了使用LocalStackContainer的JUnit AWSCredentials NoClassDefFoundError的處理方法，對(duì)大家解決問(wèn)題具有一定的參考價(jià)值，需要的朋友們下面隨著小編來(lái)一起學(xué)習(xí)吧！

問(wèn)題描述

在嘗試實(shí)例化LocalstackContainer時(shí)，我得到了以下異常。我確實(shí)有這個(gè)類可用，并且能夠在我的本地找到源代碼。我找不到根本原因。我使用的是帶有Java 11的Windows操作系統(tǒng)。

import org.testcontainers.containers.localstack.LocalStackContainer;
import org.testcontainers.junit.jupiter.Testcontainers;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;


@TestContainers
public class S3Test {
     private S3Client s3Client() {
            LocalStackContainer localstack= new LocalStackContainer().withServices(LocalStackContainer.Service.S3);
            return S3Client
                    .builder()
                    .endpointOverride(localstack.getEndpointOverride(LocalStackContainer.Service.S3))
                    .credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(
                            localstack.getAccessKey(), localstack.getSecretKey())))
                    .region(Region.of(localstack.getRegion()))
                    .build();
        }

@Test
 public void test() {   
}

}

錯(cuò)誤：

java.lang.NoClassDefFoundError: com/amazonaws/auth/AWSCredentials   
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:686)
    at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
    at 
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachMethods$2(TestMethodTestDescriptor.java:169)     
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:248)
    at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$5(DefaultLauncher.java:211)
    at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:226)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:199)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:141)
    at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:98)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:542)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:770)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)
Caused by: java.lang.ClassNotFoundException: com.amazonaws.auth.AWSCredentials
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 71 more

推薦答案

雖然Testtainers LocalStack支持AWS SDK版本2，但它在幕后仍然使用AWS SDK版本1，但omits the necessary runtime dependency。因此，您需要顯式包含依賴項(xiàng)：

Maven

<dependency>
    <groupId>com.amazonaws</groupId>
    <artifactId>aws-java-sdk-s3</artifactId>
    <version>1.11.914</version>
    <scope>test</scope>
</dependency>

Gradle

testImplementation "com.amazonaws:aws-java-sdk-s3:1.11.914"

這篇關(guān)于使用LocalStackContainer的JUnit AWSCredentials NoClassDefFoundError的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，