java与Amazon AWS NoSuchFieldError
这是控制台日志：
Exception in thread "AWT-EventQueue-0" java.lang.NoSuchFieldError: INSTANCE
at org.apache.http.client.utils.URLEncodedUtils.parse(URLEncodedUtils.java:246)
at org.apache.http.client.utils.URLEncodedUtils.parse(URLEncodedUtils.java:225)
at org.apache.http.client.utils.URIBuilder.parseQuery(URIBuilder.java:95)
at org.apache.http.client.utils.URIBuilder.digestURI(URIBuilder.java:165)
at org.apache.http.client.utils.URIBuilder.<init>(URIBuilder.java:90)
at org.apache.http.client.utils.URIUtils.rewriteURI(URIUtils.java:138)
at org.apache.http.impl.client.DefaultRequestDirector.rewriteRequestURI(DefaultRequestDirector.java:353)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:476)
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)
at com.amazonaws.http.AmazonHttpClient.executeOneRequest(AmazonHttpClient.java:837)
at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:607)
at com.amazonaws.http.AmazonHttpClient.doExecute(AmazonHttpClient.java:376)
at com.amazonaws.http.AmazonHttpClient.executeWithTimer(AmazonHttpClient.java:338)
at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:287)
at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:3826)
at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:3778)
at com.amazonaws.services.s3.AmazonS3Client.listObjects(AmazonS3Client.java:610)
at net.pocketsurvey.cloud.Amazon.listObjectsInBucket(Amazon.java:93)
底线是，我的代码将在哪里移交给亚马逊的S3。代码如下：
public static ObjectListing listObjectsInBucket(String bucketName,
String key) throws Exception {
ObjectListing list = null;
AmazonS3Client client = Client.s3(Client.DESKTOP);
try {
boolean b_exists = client.doesBucketExist(bucketName);
boolean o_exists = client.doesObjectExist(bucketName, key);
if(b_exists) {
list = client.listObjects(bucketName, key);
}
} catch ( AmazonServiceException e){
String err = e.getErrorMessage();
e.printStackTrace();
} catch ( AmazonClientException e){
e.printStackTrace();
} catch ( Exception e){
e.printStackTrace();
}
return list;
}
"client.listObjects"就是它爆炸的地方。
使用的库包括：aws-java-sdk-1.10.77.jarhttpclient-osgi-4.3.jarorg.apache.httpcomponents.httpcore_4.2.1.jar
"b_exists"为true，但"o_exists"返回为false，即使密钥最肯定存在。
我使用的凭据适用于其他事情，如电子邮件和下载已知对象，即完整的密钥字符串。但是，试图使用部分关键字字符串（如"hhs/"）获得列表时，我得到了上面的eror。
另外，"捕获"不会捕获它。
代码目前在UI线程上运行，但我在它自己的线程上尝试过，得到了类似的结果。
平台是Windows7。
如有任何帮助，我们将不胜感激。
问题排序-库不匹配。
"aws-java-sdk-1.10.77.jar"需要"org.apache.httpcomponents.httpcore_4.4.4.jar"作为构建路径。