PropertyLike Fails when

have the attached sld that fails to render (in styler) at certain times. individual featuretypestyles render, but in combination and at certain zoom levels, it fails. believe its something with propertylike and null values.

error:
30 Sep 13:14:23 ERROR [geoserver.ows] -
org.vfny.geoserver.wms.WmsException: org.vfny.geoserver.wms.WmsException: Rendering process failed
at org.vfny.geoserver.wms.responses.GetMapResponse.execute(GetMapResponse.java:442)
at org.geoserver.ows.adapters.ResponseAdapter.getMimeType(ResponseAdapter.java:48)
at org.geoserver.ows.Dispatcher.response(Dispatcher.java:692)
at org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:213)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093)
at org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:265)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)
at org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
at org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:124)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:174)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
at org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
at org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:149)
at org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:73)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at org.geoserver.filters.ReverseProxyFilter.doFilter(ReverseProxyFilter.java:183)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:41)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:828)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:450)
Caused by: org.vfny.geoserver.wms.WmsException: Rendering process failed
at org.vfny.geoserver.wms.responses.DefaultRasterMapProducer.produceMap(DefaultRasterMapProducer.java:409)
at org.vfny.geoserver.wms.responses.GetMapResponse.execute(GetMapResponse.java:421)
... 52 more
Caused by: java.lang.Exception: Error rendering feature
at org.geotools.renderer.lite.StreamingRenderer.drawOptimized(StreamingRenderer.java:1821)
at org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRenderer.java:1731)
at org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:676)
at org.geotools.renderer.shape.ShapefileRenderer.renderWithStreamingRenderer(ShapefileRenderer.java:1510)
at org.geotools.renderer.shape.ShapefileRenderer.paint(ShapefileRenderer.java:1358)
at org.geotools.renderer.shape.ShapefileRenderer.paint(ShapefileRenderer.java:270)
at org.vfny.geoserver.wms.responses.DefaultRasterMapProducer.produceMap(DefaultRasterMapProducer.java:385)
... 53 more
Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: 8
at java.lang.String.charAt(String.java:558)
at java.lang.Character.codePointAt(Character.java:2335)
at java.util.regex.Pattern$Dot.match(Pattern.java:4100)
at java.util.regex.Pattern$Curly.match0(Pattern.java:4231)
at java.util.regex.Pattern$Curly.match0(Pattern.java:4234)
at java.util.regex.Pattern$Curly.match0(Pattern.java:4234)
at java.util.regex.Pattern$Curly.match0(Pattern.java:4234)
at java.util.regex.Pattern$Curly.match(Pattern.java:4205)
at java.util.regex.Matcher.match(Matcher.java:1114)
at java.util.regex.Matcher.matches(Matcher.java:495)
at org.geotools.filter.LikeFilterImpl.evaluate(LikeFilterImpl.java:458)
at org.geotools.filter.AndImpl.evaluate(AndImpl.java:53)
at org.geotools.filter.OrImpl.evaluate(OrImpl.java:40)
at org.geotools.renderer.lite.StreamingRenderer.process(StreamingRenderer.java:1871)
at org.geotools.renderer.lite.StreamingRenderer.drawOptimized(StreamingRenderer.java:1816)
... 59 more