diff -Nrup httpd-2.0.51.orig/modules/experimental/mod_disk_cache.c httpd-2.0.51/modules/experimental/mod_disk_cache.c
--- httpd-2.0.51.orig/modules/experimental/mod_disk_cache.c	2004-08-26 18:59:44.000000000 +0200
+++ httpd-2.0.51/modules/experimental/mod_disk_cache.c	2004-09-22 16:32:44.000000000 +0200
@@ -659,6 +659,21 @@ static apr_status_t store_body(cache_han
     /* Was this the final bucket? If yes, close the body file and make sanity checks */
     if (APR_BUCKET_IS_EOS(APR_BRIGADE_LAST(b))) {
         if (h->cache_obj->info.len <= 0) {
+          /* 
+           * If the target value of the content length is unknown
+           * (h->cache_obj->info.len <= 0) check if connection has been aborted
+           * by client to avoid caching incomplete request bodys.
+           * This can happen with large responses from slow backends like
+           * Tomcat via mod_jk.
+           */
+          if (r->connection->aborted) {
+            ap_log_error(APLOG_MARK, APLOG_INFO, 0, r->server,
+                       "disk_cache: Discarding body for URL %s "
+                       "because connection has been aborted.",
+                       h->cache_obj->key);
+            /* Remove the intermediate cache file and return non-APR_SUCCESS */
+            return file_cache_errorcleanup(dobj, r);
+          }
           /* XXX Fixme: file_size isn't constrained by size_t. */
           h->cache_obj->info.len = dobj->file_size;
         }