NetBeans - show compiler warnings for JSP in non-standard location

Modular components for Liferay portal provided as OSGi modules use non standard Maven layout. All JSP pages are located in /src/main/resources/META-INF/resources instead of typical /src/main/webapps. Moreover, jar packaging is used instead of typical war. When such a project is opened in NetBeans, no errors or warnings are shown in JSP file even it is broken deliberately.

Example project can be found here https://github.com/liferay/liferay-blade-samples/tree/7.1/maven/apps/jsp-portlet

Can I somehow configure NetBeans to process my JSP files as usual?

Solution

NetBeans source code revealed there is some support for non-standard locations via the configuration of maven-war-plugin. So this plugin has to be present even not needed for the build:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <version>3.2.2</version>
    <configuration>
        <warSourceDirectory>/src/main/resources/META-INF/resources</warSourceDirectory>
    </configuration>
</plugin>