error while trying to load a tms imagery from ftp

[anonymous]

Please provide any additional information below. Attach a screenshot if possible.

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-11-26 14:31:59 +0100 (Sun, 26 Nov 2017)
Build-Date:2017-11-26 13:34:54
Revision:13170
Relative:URL: ^/trunk

Identification: JOSM/1.5 (13170 en) Windows 10 32-Bit
OS Build number: Windows 10 Enterprise 1607 (14393)
Memory Usage: 163 MB / 247 MB (43 MB allocated, but free)
Java version: 1.8.0_151-b12, Oracle Corporation, Java HotSpot(TM) Client VM
Screen: \Display0 1360x768
Maximum Screen Size: 1360x768
VM arguments: [-Djava.security.manager, -Djava.security.policy=file:<java.home>\lib\security\javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>\bin, -Djnlpx.origFilenameArg=%UserProfile%\Desktop\josm.jnlp, -Djnlpx.remove=true, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.splashport=50652, -Djnlpx.jvm=<java.home>\bin\javaw.exe]

Plugins:
+ CADTools (1007)
+ DxfImport (1012)
+ apache-commons (33668)
+ ejml (32680)
+ geotools (33958)
+ jts (32699)
+ opendata (33791)
+ reverter (33865)
+ terracer (33839)
+ turnrestrictions (33780)
+ utilsplugin2 (33742)

Last errors/warnings:
- E: Handled by bug report queue: java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection
- W: Too many errors. Dropping ReportedException [thread=Thread[TMS-downloader-21,5,javawsApplicationThreadGroup], exception=java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection, methodWarningFrom=BugReportExceptionHandler#handleException]
- E: Handled by bug report queue: java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection
- W: Too many errors. Dropping ReportedException [thread=Thread[TMS-downloader-2,5,javawsApplicationThreadGroup], exception=java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection, methodWarningFrom=BugReportExceptionHandler#handleException]
- E: Handled by bug report queue: java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection
- W: Too many errors. Dropping ReportedException [thread=Thread[TMS-downloader-13,5,javawsApplicationThreadGroup], exception=java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection, methodWarningFrom=BugReportExceptionHandler#handleException]
- E: Handled by bug report queue: java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection
- W: Too many errors. Dropping ReportedException [thread=Thread[TMS-downloader-17,5,javawsApplicationThreadGroup], exception=java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection, methodWarningFrom=BugReportExceptionHandler#handleException]
- E: Handled by bug report queue: java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection
- W: Too many errors. Dropping ReportedException [thread=Thread[TMS-downloader-5,5,javawsApplicationThreadGroup], exception=java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection, methodWarningFrom=BugReportExceptionHandler#handleException]


=== REPORTED CRASH DATA ===
BugReportExceptionHandler#handleException:
No data collected.

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: TMS-downloader-1 (99)
java.lang.ClassCastException: sun.net.www.protocol.ftp.FtpURLConnection cannot be cast to java.net.HttpURLConnection
	at org.openstreetmap.josm.tools.HttpClient.connect(HttpClient.java:92)
	at org.openstreetmap.josm.tools.HttpClient.connect(HttpClient.java:78)
	at org.openstreetmap.josm.data.cache.JCSCachedTileLoaderJob.loadObject(JCSCachedTileLoaderJob.java:327)
	at org.openstreetmap.josm.data.cache.JCSCachedTileLoaderJob.run(JCSCachedTileLoaderJob.java:236)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

[Don-vip]

The whole imagery system and tiles cache is based on HTTP, why do you want to use FTP?