URIUtils.extractHost(...) throws a NumberFormatException line 310

Original Jboss-seam-wicket-booking application in Jboss-4.2.3.GA started, post a login request thanks httpclient, then NumberFormatException.

regarding this page :
http://hc.apache.org/httpcomponents-client-dev/httpclient/clover/org/apache/http/client/utils/URIUtils.html

305 // Extract the port suffix, if present
306 if (host != null) {
307 int colon = host.indexOf(':');
308 if (colon >= 0) {
309 if (colon+1 < host.length())

{ 310 port = Integer.parseInt(host.substring(colon+1)); 311 }

312 host = host.substring(0,colon);
313 }
314 }

resolving the port throw a NumberFormatException

java.lang.NumberFormatException: For input string: "8080;jsessionid=9E9EDA0B6E1CDD499A0A15C4A8F212D8"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:458)
at java.lang.Integer.parseInt(Integer.java:499)
at org.apache.http.client.utils.URIUtils.extractHost(URIUtils.java:310)
at org.apache.http.impl.client.AbstractHttpClient.determineTarget(AbstractHttpClient.java:764)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at org.tagbrowser.api.TagBrowser.request(TagBrowser.java:109)

another case of this problem canbe found hier :
https://gitorious.org/yacy/rc1/commit/8b0920b0b5eb67ae17eec24c1bf3a059543cb6e8/diffs