I am trying to create an ant task to compile JSPs. Here are the excerpts from the build.xml related to the task: .... <fileset dir="${java.home}/lib"> <include name="tools.jar"/> </fileset> <java classname="weblogic.jspc" fork="yes"> <classpath refid="weblogic.jsp.classpath" /> <sysproperty key="weblogic.jsp.windows.caseSensitive" value="false"/> <arg line="-forceGeneration -keepgenerated -compileAll -webapp ${jsp.src.dir} -d ${jsp.generated.src.dir}"/> </java> When I try to run wl.jsp.generate task, I get: wl.jsp.generate: [java] [jspc] warning: expected file /WEB-INF/web.xml not found, tag libraries cannot be resolved. [java] [jspc] Overriding default descriptor option 'keepgenerated' with value specified on command-line 'true' [java] Exception encountered while compiling C:\workspace\smcmw\smcmw_browser\jsp\smcesearchprogress.jsp [java] java.lang.NoSuchMethodError: javax.servlet.jsp.tagext.TagAttributeInfo.(Ljava/lang/String;ZLjava/lang/String;ZZLjava/lang/String;ZZLjava/lang/String;Ljava/lang/String;)V [java] at weblogic.jsp.internal.jsp.tag.TagAttrInfoEx.<init>(TagAttrInfoEx.java:64) [java] at weblogic.jsp.internal.jsp.tag.TagAttrInfoEx.<init>(TagAttrInfoEx.java:57) [java] at weblogic.jsp.internal.jsp.tag.TagAttrInfoEx.<init>(TagAttrInfoEx.java:41) [java] at weblogic.jsp.internal.jsp.tag.TagAttrInfoEx.read(TagAttrInfoEx.java:86) Looks like it fails because it can't find WEB-INF/web.xml file and tag libraries. How can I fix this?