301 response from S3 causes UnknownServiceErrorException

[kggilmer]

Describe the bug

When an service returns a 301 w/ no body, the client throws a UnknownServiceErrorException.

Expected Behavior

Some error that accurately conveys the meaning of a 301 should be returned to the caller.

Current Behavior

Sample stack trace:

Exception in thread "main" aws.sdk.kotlin.runtime.UnknownServiceErrorException: failed to parse response as Xml protocol error
	at aws.sdk.kotlin.service.s3.internal.S3ErrorFeature$install$1.invokeSuspend(S3ErrorFeature.kt:86)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.UndispatchedCoroutine.afterResume(CoroutineContext.kt:142)
	at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:102)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:274)
	at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:85)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
	at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
	at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source)
	at com.example.s3.S3ObjectOperations.main(Test.kt:51)
Caused by: java.io.EOFException: input contained no data
	at org.xmlpull.mxp1.MXParser.fillBuf(MXParser.java:3003)
	at org.xmlpull.mxp1.MXParser.more(MXParser.java:3046)
	at org.xmlpull.mxp1.MXParser.parseProlog(MXParser.java:1410)
	at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1395)
	at org.xmlpull.mxp1.MXParser.next(MXParser.java:1093)
	at aws.smithy.kotlin.runtime.serde.xml.XmlStreamReaderXmlPull.takeNextValidToken(XmlStreamReaderXmlPull.kt:127)
	at aws.smithy.kotlin.runtime.serde.xml.XmlStreamReaderXmlPull.<init>(XmlStreamReaderXmlPull.kt:37)
	at aws.smithy.kotlin.runtime.serde.xml.XmlStreamReaderXmlPull.<init>(XmlStreamReaderXmlPull.kt:21)
	at aws.smithy.kotlin.runtime.serde.xml.XmlStreamReaderXmlPullKt.xmlStreamReader(XmlStreamReaderXmlPull.kt:19)
	at aws.smithy.kotlin.runtime.serde.xml.XmlDeserializer.<init>(XmlDeserializer.kt:34)
	at aws.sdk.kotlin.service.s3.internal.S3ErrorFeatureKt.parseErrorResponse(S3ErrorFeature.kt:147)
	at aws.sdk.kotlin.service.s3.internal.S3ErrorFeature$install$1.invokeSuspend(S3ErrorFeature.kt:83)
	... 12 more

Steps to Reproduce

1. create a bucket
2. call s3.headBucket()

Possible Solution

Return an exception type more specific to the 3xx error type