Exceptions when clicking on "View Diff" link for a given document, when using the Wiki Diff tool

javax.servlet.ServletException: com.xpn.xwiki.XWikiException: Error number 11007 in 0: Failed to extract Entity Resource Reference from URL [http://localhost:8080/xwiki/bin/view/Admin/WikiDiff?page=Main/WebHome.xml&source=http://localhost:8080/xwiki/bin/download/Admin/WikiDiff/package.xar&target=&skipNewRev=${request.skipNewRev}]
	org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:520)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:427)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115)
	org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:160)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:198)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:176)

com.xpn.xwiki.XWikiException: Error number 11007 in 0: Failed to extract Entity Resource Reference from URL [http://localhost:8080/xwiki/bin/view/Admin/WikiDiff?page=Main/WebHome.xml&source=http://localhost:8080/xwiki/bin/download/Admin/WikiDiff/package.xar&target=&skipNewRev=${request.skipNewRev}]
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:619)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:567)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:170)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:146)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115)
	org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:160)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:198)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:176)

org.xwiki.resource.CreateResourceReferenceException: Invalid URL [http://localhost:8080/xwiki/bin/view/Admin/WikiDiff?page=Main/WebHome.xml&source=http://localhost:8080/xwiki/bin/download/Admin/WikiDiff/package.xar&target=&skipNewRev=${request.skipNewRev}]
	org.xwiki.url.ExtendedURL.<init>(ExtendedURL.java:109)
	org.xwiki.url.internal.standard.StandardURLResourceReferenceResolver.resolve(StandardURLResourceReferenceResolver.java:161)
	org.xwiki.url.internal.standard.StandardURLResourceReferenceResolver.resolve(StandardURLResourceReferenceResolver.java:55)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:75)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:45)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:615)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:567)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:170)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:146)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115)
	org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:160)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:198)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:176)

java.net.URISyntaxException: Illegal character in query at index 212: http://localhost:8080/xwiki/bin/view/Admin/WikiDiff?page=Main/WebHome.xml&source=http://localhost:8080/xwiki/bin/download/Admin/WikiDiff/package.xar&target=&skipNewRev=${request.skipNewRev}
	java.net.URI$Parser.fail(Unknown Source)
	java.net.URI$Parser.checkChars(Unknown Source)
	java.net.URI$Parser.parseHierarchical(Unknown Source)
	java.net.URI$Parser.parse(Unknown Source)
	java.net.URI.<init>(Unknown Source)
	java.net.URL.toURI(Unknown Source)
	org.xwiki.url.ExtendedURL.<init>(ExtendedURL.java:107)
	org.xwiki.url.internal.standard.StandardURLResourceReferenceResolver.resolve(StandardURLResourceReferenceResolver.java:161)
	org.xwiki.url.internal.standard.StandardURLResourceReferenceResolver.resolve(StandardURLResourceReferenceResolver.java:55)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:75)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:45)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:615)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:567)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:170)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:146)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115)
	org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:160)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:198)
	net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:176)

${request.skipNewRev}