mavens resource-plugin is skipping all resources if the folder is empty

Maybe we can overcome this by an empty placeholder file. There might be
a different way, but atm I don't have a clue how that could look

Author: pesse

pom.xml

@@ -136,6 +136,7 @@
           <excludes>
             <exclude>**/*IT.java</exclude>
           </excludes>
+          <trimStackTrace>false</trimStackTrace>
         </configuration>
         <dependencies>
           <dependency>

src/main/java/org/utplsql/api/ResourceUtil.java

@@ -1,10 +1,8 @@
 package org.utplsql.api;
 
-import com.sun.nio.zipfs.ZipFileSystem;
 import com.sun.nio.zipfs.ZipPath;
 import org.utplsql.api.reporter.CoverageHTMLReporter;
 
-import java.io.File;
 import java.io.IOException;
 import java.net.URI;
 import java.net.URISyntaxException;