本文介绍了使用LocalStackContainer的JUnit AWSCredentials NoClassDefFoundError的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在尝试实例化LocalstackContainer时，我得到了以下异常。我确实有这个类可用，并且能够在我的本地找到源代码。我找不到根本原因。我使用的是带有Java 11的Windows操作系统。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() {
}
}
错误：
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
推荐答案
虽然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，您需要显式包含依赖项：
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"
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