private static void basicGetBucketVersions() throws IOException
	{
		System.out.println("basic get bucket versions");
    	
		String bucketName="chttest1";
		
		AmazonS3 s3 = new AmazonS3Client(new PropertiesCredentials(putBucket.class.getResourceAsStream("AwsCredentials.properties")));
		try
		{
			VersionListing result = s3.listVersions(bucketName, "hello");
			System.out.println(result.getBucketName());
			for(S3VersionSummary s : result.getVersionSummaries())
			{
				System.out.println(s.getBucketName());
				System.out.println(s.getKey());
				System.out.println(s.getETag());
				System.out.println(s.getSize());
				System.out.println(s.getVersionId());
			}
	        System.out.println();
	    }
		catch (AmazonServiceException ase) {
			System.out.println("Caught an AmazonServiceException, which means your request made it "
	                    + "to Amazon S3, but was rejected with an error response for some reason.");
	        System.out.println("Error Message:    " + ase.getMessage());
	        System.out.println("HTTP Status Code: " + ase.getStatusCode());
	        System.out.println("AWS Error Code:   " + ase.getErrorCode());
	        System.out.println("Error Type:       " + ase.getErrorType());
	        System.out.println("Request ID:       " + ase.getRequestId());
	    } catch (AmazonClientException ace) {
	    	System.out.println("Caught an AmazonClientException, which means the client encountered "
	                    + "a serious internal problem while trying to communicate with S3, "
	                    + "such as not being able to access the network.");
	    	System.out.println("Error Message: " + ace.getMessage());
	    }
	}