diff --git a/src/main/java/eva2/tools/JarResources.java b/src/main/java/eva2/tools/JarResources.java
deleted file mode 100644
index e374f743..00000000
--- a/src/main/java/eva2/tools/JarResources.java
+++ /dev/null
@@ -1,172 +0,0 @@
-package eva2.tools;
-
-import java.io.BufferedInputStream;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.util.Enumeration;
-import java.util.Hashtable;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-import java.util.zip.ZipInputStream;
-
-/**
- * JarResources: JarResources maps all resources included in a
- * Zip or Jar file. Additionally, it provides a method to extract one
- * as a blob.
- */
-public final class JarResources {
-
-    // external debug flag
-    public boolean debugOn = false;
-
-    // jar resource mapping tables
-    private Hashtable<String,Integer> htSizes = new Hashtable<>();
-    private Hashtable<String,byte[]> htJarContents = new Hashtable<>();
-
-    // a jar file
-    private String jarFileName;
-
-    /**
-     * creates a JarResources. It extracts all resources from a Jar
-     * into an internal HashTable, keyed by resource names.
-     *
-     * @param jarFileName a jar or zip file
-     */
-    public JarResources(String jarFileName) {
-        this.jarFileName = jarFileName;
-        init();
-    }
-
-    /**
-     * Extracts a jar resource as a blob.
-     *
-     * @param name a resource name.
-     */
-    public byte[] getResource(String name) {
-        return htJarContents.get(name);
-    }
-
-    /**
-     * initializes internal hash tables with Jar file resources.
-     */
-    private void init() {
-        try {
-            // extracts just sizes only.
-            ZipFile zf = new ZipFile(jarFileName);
-            Enumeration e = zf.entries();
-            while (e.hasMoreElements()) {
-                ZipEntry ze = (ZipEntry) e.nextElement();
-                if (debugOn) {
-                    System.out.println(dumpZipEntry(ze));
-                }
-                htSizes.put(ze.getName(), (int) ze.getSize());
-            }
-            zf.close();
-
-            // extract resources and put them into the HashTable.
-            FileInputStream fis = new FileInputStream(jarFileName);
-            BufferedInputStream bis = new BufferedInputStream(fis);
-            ZipInputStream zis = new ZipInputStream(bis);
-            ZipEntry ze;
-            while ((ze = zis.getNextEntry()) != null) {
-                if (ze.isDirectory()) {
-                    continue;
-                }
-                if (debugOn) {
-                    System.out.println(
-                            "ze.getName()=" + ze.getName() + "," + "getSize()=" + ze.getSize()
-                    );
-                }
-                int size = (int) ze.getSize();
-                // -1 means unknown size.
-                if (size == -1) {
-                    size = htSizes.get(ze.getName());
-                }
-                byte[] b = new byte[size];
-                int rb = 0;
-                int chunk;
-                while ((size - rb) > 0) {
-                    chunk = zis.read(b, rb, size - rb);
-                    if (chunk == -1) {
-                        break;
-                    }
-                    rb += chunk;
-                }
-                // add to internal resource HashTable
-                htJarContents.put(ze.getName(), b);
-                if (debugOn) {
-                    System.out.println(
-                            ze.getName() + "  rb=" + rb +
-                                    ",size=" + size +
-                                    ",csize=" + ze.getCompressedSize()
-                    );
-                }
-            }
-        } catch (NullPointerException e) {
-            System.out.println("done.");
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
-    /**
-     * Dumps a zip entry into a string.
-     *
-     * @param ze a ZipEntry
-     */
-    private String dumpZipEntry(ZipEntry ze) {
-        StringBuilder sb = new StringBuilder();
-        if (ze.isDirectory()) {
-            sb.append("d ");
-        } else {
-            sb.append("f ");
-        }
-        if (ze.getMethod() == ZipEntry.STORED) {
-            sb.append("stored   ");
-        } else {
-            sb.append("defalted ");
-        }
-        sb.append(ze.getName());
-        sb.append("\t");
-        sb.append("").append(ze.getSize());
-        if (ze.getMethod() == ZipEntry.DEFLATED) {
-            sb.append("/").append(ze.getCompressedSize());
-        }
-        return (sb.toString());
-    }
-
-    /**
-     * Is a test driver. Given a jar file and a resource name, it tries to
-     * extract the resource and then tells us whether it could or not.
-     * <p>
-     * <strong>Example</strong>
-     * Let's say you have a JAR file which jarred up a bunch of gif image
-     * files. Now, by using JarResources, you could extract, create, and display
-     * those images on-the-fly.
-     * <pre>
-     *     ...
-     *     JarResources JR=new JarResources("GifBundle.jar");
-     *     Image image=Toolkit.createImage(JR.getResource("logo.gif");
-     *     Image logo=Toolkit.getDefaultToolkit().createImage(
-     *                   JR.getResources("logo.gif")
-     *                   );
-     *     ...
-     * </pre>
-     */
-    public static void main(String[] args) throws IOException {
-        if (args.length != 2) {
-            System.err.println(
-                    "usage: java JarResources <jar file name> <resource name>"
-            );
-            System.exit(1);
-        }
-        JarResources jr = new JarResources(args[0]);
-        byte[] buff = jr.getResource(args[1]);
-        if (buff == null) {
-            System.out.println("Could not find " + args[1] + ".");
-        } else {
-            System.out.println("Found " + args[1] + " (length=" + buff.length + ").");
-        }
-    }
-
-}