Relative paths in permissions.xml doesn't work on JDK11.

This is not a regression against EAP 7.3.0GA.

JmxControlledStateNotificationsTestCase in domain module fails because of this on JDK11, same test in standalone/manualmode modules are passing because workarounds added by WFCORE-4252.

Steps to reproduce:

• Prepare deployment with permissions.xml file:

  <?xml version="1.0" encoding="UTF-8"?>
  <permissions version="7" xmlns="http://xmlns.jcp.org/xml/ns/javaee">
      <permission xmlns="">
          <class-name>java.io.FilePermission</class-name>
          <name>test.txt</name>
          <actions>read, write</actions>
      </permission>
  </permissions>
  

• and end-point

      @GET
      @Path("test")
      public String test1() throws Exception {
          if (!Files.exists(targetFile)) {
              Files.createDirectories(targetFile);
          }
          return "ok\n";
      }
  

• Start server with enabled secmgr: ./standalone.sh -secmgr
• Allow basic permissions:

  /subsystem=security-manager/deployment-permissions=default:write-attribute(name=minimum-permissions, value=[{class="java.util.PropertyPermission", actions="read", name="*"}])
  reload
  

• Deploy the deployment
• Make http request for the end-point
  • JDK8: ok
  • JDK11:

    Caused by: java.security.AccessControlException: WFSM000001: Permission check failed (permission "("java.io.FilePermission" "/home/mkopecky/playground/eap/old/7.3.0/jboss-eap-7.3/bin/test.txt" "read")" in code source "(vfs:/content/custom-application.war/WEB-INF/classes <no signer certificates>)" of "ModuleClassLoader for Module "deployment.custom-application.war" from Service Module Loader")