A report on OpenJDK mailing list :

==
One of my customer encountered a disk full error and found
that the /tmp was filled with files "jaxws<19 numbers>.bin".

I could not find a known issue like it, but noticed that
the jaxws code in openjdk may leave temporary files in the /tmp.

I suggest a fix for the code as attached.

Please note that I have not confirmed that the fix works,
but I would like to show you it now because it may take
some time to confirm, and necessity for the fix looks
rather obvious for me.

===

diff -r 45ef73bb85c1 -r 455600e57dd2 src/java.xml.ws/share/classes/com/sun/xml/internal/ws/transport/http/server/ServerConnectionImpl.java
--- a/src/java.xml.ws/share/classes/com/sun/xml/internal/ws/transport/http/server/ServerConnectionImpl.java Thu May 14 12:38:10 2015 -0700
+++ b/src/java.xml.ws/share/classes/com/sun/xml/internal/ws/transport/http/server/ServerConnectionImpl.java Tue May 19 10:09:15 2015 +0900
@@ -168,6 +168,7 @@
         public void close() throws IOException {
             if (!closed) {
                 readAll();
+ in.close();
                 super.close();
                 closed = true;
             }
@@ -195,6 +196,7 @@
                         // This causes problems for streaming in one-way cases
                         in.readAll();
                         try {
+ in.close();
                             super.close();
                         } catch(IOException ioe) {
                             // Ignoring purposefully.


More info at http://mail.openjdk.java.net/pipermail/net-dev/2015-May/008982.html