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有人可以解释下面两个库之间的区别 -

我有两段代码，都试图在帐户中列出 s3 存储桶。

JAVA 1 库。使用来自 com.amazonaws.auth.profile.ProfileCredentialsProvider的 CredentialProvider ；

            AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                    .withCredentials(new ProfileCredentialsProvider("default"))
                    .withRegion("us-east-1")
                    .build();

            System.out.println("Number of buckets: " + s3Client.listBuckets().size());

使用 CredentialProvider 的 Java 2 库

软件.amazon.awssdk.auth.credentials.ProfileCredentialsProvider；

S3Client s3Client = S3Client.builder()
                   .credentialsProvider(ProfileCredentialsProvider.builder().profileName("default")
                    .build())
                    .region(Region.of("us-east-1"))
                    .build();
            System.out.println("Number of buckets: " + s3Client.listBuckets().buckets().size());

Java2 库调用成功，我可以看到正在打印的桶数。

使用 Java 1 库时，总是无法从配置加载配置文件。

ENV 变量已设置。我得到以下异常：

java.lang.IllegalArgumentException: No AWS profile named 'default'
    at com.amazonaws.auth.profile.ProfilesConfigFile.getCredentials(ProfilesConfigFile.java:158)
    at com.amazonaws.auth.profile.ProfileCredentialsProvider.getCredentials(ProfileCredentialsProvider.java:161)
    at com.s3.test.TestS3.testRead(TestS3.java:12)
    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.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
    at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
    at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
    at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
    at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
    at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)
    at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
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