Lucee 4.5.1.000 Problem with S3 Directory Listing: "exists, but isn't a directory"

a_test.cfm

<cfscript>
base = "s3://MYKEY:MYSKEY@/files-stage.mysite.com";

writeDump(
	var = directoryList( base ),
	label = "directoryList(#base#)",
	output = "console"
);

dir = base & "/reports";
writeDump(
	var = directoryList(dir),
	label = "directoryList()",
	output = "console"
);

file = base & "/a/foo.txt";
writeDump(
	var = fileRead( file ),
	label = "fileRead(#file#)",
	output = "console"
);

dir = base & "/a";
writeDump(
	var = directoryList(dir),
	label = "directoryList()",
	output = "console"
);
</cfscript>

b_output.txt

directoryList(s3://MYKEY:MYSKEY@/files-stage.mysite.com)
Array

    1
        string s3://MYKEY:MYSKEY@/files-stage.mysite.com/1
    2
        string s3://MYKEY:MYSKEY@/files-stage.mysite.com/a
    3
        string s3://MYKEY:MYSKEY@/files-stage.mysite.com/level1
    4
        string s3://MYKEY:MYSKEY@/files-stage.mysite.com/reports
    5
        string s3://MYKEY:MYSKEY@/files-stage.mysite.com/test

directoryList()
Array

    1
        string s3://MYKEY:MYSKEY@/files-stage.mysite.com/reports/conplans
    2
        string s3://MYKEY:MYSKEY@/files-stage.mysite.com/reports/conplans_old
    3
        string s3://MYKEY:MYSKEY@/files-stage.mysite.com/reports/test

fileRead(s3://MYKEY:MYSKEY@/files-stage.mysite.com/a/foo.txt)

    string hello there


==> /var/www/vmhost/apps/mysite/cfml/deployment_root/wwwroot/WEB-INF/lucee/logs/exception.log <==
"ERROR","http-bio-8888-exec-6","05/15/2015","10:46:14","",";file [s3://MYKEY:MYSKEY@/files-stage.mysite.com/a] exists, but isn't a directory;file [s3://MYKEY:MYSKEY@/files-stage.mysite.com/a] exists, but isn't a directory
        at lucee.runtime.tag.Directory.actionList(Unknown Source):-1
        at lucee.runtime.functions.file.DirectoryList.call(Unknown Source):-1
        at lucee.runtime.functions.file.DirectoryList.call(Unknown Source):-1
        at test.s3.untitled_cfm$cf.call(/var/www/vmhost/apps/mysite/cfml/deployment_root/wwwroot/test/s3/untitled.cfm:26):26
        at lucee.runtime.PageContextImpl.doInclude(Unknown Source):-1
        at lucee.runtime.PageContextImpl.doInclude(Unknown Source):-1
        at lucee.runtime.listener.ModernAppListener._onRequest(Unknown Source):-1
        at lucee.runtime.listener.MixedAppListener.onRequest(Unknown Source):-1
        at lucee.runtime.PageContextImpl.execute(Unknown Source):-1
        at lucee.runtime.PageContextImpl.execute(Unknown Source):-1
        at lucee.runtime.engine.CFMLEngineImpl.serviceCFML(Unknown Source):-1
        at lucee.loader.servlet.CFMLServlet.service(Unknown Source):-1
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727):727
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303):303
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208):208
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52):52
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241):241
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208):208
        at org.apache.catalina.filters.RemoteIpFilter.doFilter(RemoteIpFilter.java:834):834
        at org.apache.catalina.filters.RemoteIpFilter.doFilter(RemoteIpFilter.java:870):870
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241):241
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208):208
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220):220
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122):122
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504):504
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170):170
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103):103
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116):116
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421):421
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074):1074
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611):611
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314):314
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142):1142
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617):617
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61):61
        at java.lang.Thread.run(Thread.java:745):745

c_policy.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Action": [
                "s3:ListAllMyBuckets",
                "s3:GetBucketLocation"
            ],
            "Effect": "Allow",
            "Resource": "arn:aws:s3:::*"
        },
        {
            "Action": [
                "s3:ListBucket",
                "s3:ListBucketMultipartUploads",
                "s3:ListBucketVersions"
            ],
            "Effect": "Allow",
            "Resource": [
                "arn:aws:s3:::files-stage.mysite.com",
                "arn:aws:s3:::files-stage.mysite.com/*"
            ]
        },
        {
            "Action": [
                "s3:AbortMultipartUpload",
                "s3:DeleteObject",
                "s3:DeleteObjectVersion",
                "s3:GetObject",
                "s3:GetObjectAcl",
                "s3:GetObjectVersion",
                "s3:GetObjectVersionAcl",
                "s3:ListMultipartUploadParts",
                "s3:PutObject",
                "s3:PutObjectAcl",
                "s3:PutObjectVersionAcl",
                "s3:RestoreObject"
            ],
            "Effect": "Allow",
            "Resource": [
                "arn:aws:s3:::files-stage.mysite.com/*"
            ]
        }
    ]
}