"JBWEB004249: Page directive: invalid value for import" ERROR happens after migrating from JBoss EAP 6 to JBoss EAP 7

Issue

The follwing ERROR JBWEB004249: Page directive: invalid value for import happens after migrating from JBoss EAP 6 to JBoss EAP 7:

ERROR [io.undertow.request] (default task-1) UT005023: Exception handling request to /test/test.jsp: org.apache.jasper.JasperException: JBWEB004001: Unable to compile class for JSP
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:667)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:358)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:403)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:347)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
        (omitted)
Caused by: java.lang.IllegalArgumentException: JBWEB004249: Page directive: invalid value for import
    at org.apache.jasper.compiler.Node$PageDirective.validateImport(Node.java:610)
    at org.apache.jasper.compiler.Node$PageDirective.addImport(Node.java:591)
    at org.apache.jasper.compiler.Parser.parsePageDirective(Parser.java:347)
    at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:464)
    at org.apache.jasper.compiler.Parser.parseFileDirectives(Parser.java:1799)
    at org.apache.jasper.compiler.Parser.parse(Parser.java:140)
    at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:223)
    at org.apache.jasper.compiler.ParserController.parseDirectives(ParserController.java:119)
    at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:196)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:652)
    ... 48 more