diff --git a/build.xml b/build.xml
index 52b1e3572..631abd71f 100644
--- a/build.xml
+++ b/build.xml
@@ -174,6 +174,7 @@
            source="${javacSource}" target="${javacTarget}" encoding="UTF-8">
       <classpath refid="project.class.path" />
       <compilerarg value="-Xlint"/>
+      <compilerarg value="-nowarn"/>
     </javac>
 
     <!-- prepare classpath for MANIFEST (manifest cp is relative to jar) -->
diff --git a/source/net/yacy/server/http/HTTPDProxyHandler.java b/source/net/yacy/server/http/HTTPDProxyHandler.java
index 493cd7a6f..744c4515c 100644
--- a/source/net/yacy/server/http/HTTPDProxyHandler.java
+++ b/source/net/yacy/server/http/HTTPDProxyHandler.java
@@ -178,7 +178,7 @@ public final class HTTPDProxyHandler {
         final String redirectorPath = sb.getConfig("externalRedirector", "");
         if (redirectorPath.length() > 0 && !redirectorEnabled) {
             try {
-                redirectorProcess=Runtime.getRuntime().exec(redirectorPath);
+                redirectorProcess=Runtime.getRuntime().exec(redirectorPath, null, null);
                 redirectorWriter = new PrintWriter(redirectorProcess.getOutputStream());
                 redirectorReader = new BufferedReader(new InputStreamReader(redirectorProcess.getInputStream()));
                 redirectorEnabled=true;
diff --git a/source/net/yacy/visualization/DemoApplet.java b/source/net/yacy/visualization/DemoApplet.java
index 10db0bd63..55ceb5430 100644
--- a/source/net/yacy/visualization/DemoApplet.java
+++ b/source/net/yacy/visualization/DemoApplet.java
@@ -6,6 +6,7 @@ import java.awt.Graphics;
 
 
 
+@SuppressWarnings("removal")
 public class DemoApplet extends Applet implements Runnable {
     // can be run in eclipse with
     // Run -> Run As -> Java Applet