Buildtools Crash

java -jar BuildTools.jar --rev 1.8.3
Loading BuildTools version: git-BuildTools-5068da3-35 (#35)
BuildTools
unconfigured@null.spigotmc.org
Maven does not exist, downloading. Please wait.
Starting download of http://static.spigotmc.org/maven/apache-maven-3.2.3-bin.zip
Exception in thread "main" java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(SocketInputStream.java:196)
        at java.net.SocketInputStream.read(SocketInputStream.java:122)
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
        at java.io.BufferedInputStream.read1(BufferedInputStream.java:275)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
        at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:687)
        at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:633)
        at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:658)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1324)
        at java.net.URL.openStream(URL.java:1037)
        at com.google.common.io.Resources$UrlByteSource.openStream(Resources.java:72)
        at com.google.common.io.ByteSource.read(ByteSource.java:257)
        at com.google.common.io.Resources.toByteArray(Resources.java:99)
        at org.spigotmc.builder.Builder.download(Builder.java:593)
        at org.spigotmc.builder.Builder.main(Builder.java:182)