I have been using the very good Tuckey urlrewrite filter on J2EE website recently and came across the following error for one of my filters.

``` {.js name=”code”} org.xml.sax.SAXParseException: The reference to entity “documentNumber” must end with the ‘;’ delimiter.

  at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264)

  at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292)

  at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:123)

  at org.tuckey.web.filters.urlrewrite.Conf.loadDom(Conf.java:208)

  at org.tuckey.web.filters.urlrewrite.Conf.(Conf.java:130) ```

This exception perplexed me for a while and it took a bit of googling to find the answer as the exception lead me in the wrong direction.

Because the url filters are written in XML, they cannot contain the & character in plaintext. The answer to this annoying exception is to:

replace all & characters with &

i.e:

``` {.js name=”code”}

       /test.php?foo=bar&baz=(.*)
       /testing/$1

becomes

``` {.js name="code"}

           /test.php?foo=bar&baz=(.*)
           /testing/$1

I hope this helps anyone who comes across the same problem.

 

Matt Reid

Lead Software Architect. Java/Node enthusiast, badminton lover, foodie.

drei01 Matthew_Reid


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