Java error: Only a type can be imported. XYZ resolves to a package

OK I just solved it. In the last import I added a ";" by copying other code examples. I guess it's the standard line ending that is required.

So

<%@ page import="java.util.*" %>
<%@ page import="org.eresearch.knowledgeportal.dao.CategoryDao" %>
<%@ page import="org.eresearch.knowledgeportal.model.Category" %>

became

 <%@ page import="java.util.*" %>
 <%@ page import="org.eresearch.knowledgeportal.dao.CategoryDao" %>
 <%@ page import="org.eresearch.knowledgeportal.model.Category;" %>

Well, you are not really providing enough details on your webapp but my guess is that you have a JSP with something like that:

<%@ page import="java.util.*,x.y.Z"%> 

And x.y.Z can't be found on the classpath (i.e. is not present under WEB-INF/classes nor in a JAR of WEB-INF/lib).

Double check that the WAR you deploy on Tomcat has the following structure:

my-webapp
|-- META-INF
|   `-- MANIFEST.MF
|-- WEB-INF
|   |-- classes
|   |   |-- x
|   |   |   `-- y
|   |   |       `-- Z.class
|   |   `-- another
|   |       `-- packagename
|   |           `-- AnotherClass.class
|   |-- lib
|   |   |-- ajar.jar
|   |   |-- bjar.jar
|   |   `-- zjar.jar
|   `-- web.xml
|-- a.jsp
|-- b.jsp
`-- index.jsp

Or that the JAR that bundles x.y.Z.class is present under WEB-INF/lib.

I got this error in Netbeans. As with most bizarre errors like this that appear out of nowhere, I resolve it by going to project properties, changing the Source/Binary Format (doesn't matter to what, just something different), and doing a clean and build.

If you spell the class name wrong or the class isn't on the classpath, the JSP processor will say it "resolves to a package" rather than that it doesn't exist. This was driving me crazy today as I kept not seeing a typo I'd made.