diff --git a/classpath/java/lang/Class.java b/classpath/java/lang/Class.java
index 551bd710d8..0abf34eb02 100644
--- a/classpath/java/lang/Class.java
+++ b/classpath/java/lang/Class.java
@@ -22,6 +22,8 @@ import java.lang.annotation.Annotation;
 import java.io.InputStream;
 import java.io.IOException;
 import java.net.URL;
+import java.util.Map;
+import java.util.HashMap;
 import java.security.ProtectionDomain;
 import java.security.Permissions;
 import java.security.AllPermission;
@@ -456,7 +458,7 @@ public final class Class <T> implements Type, GenericDeclaration {
   }
 
   public Object[] getSigners() {
-    throw new UnsupportedOperationException();
+    return Static.signers.get(this);
   }
 
   public Annotation[] getDeclaredAnnotations() {
@@ -503,6 +505,12 @@ public final class Class <T> implements Type, GenericDeclaration {
 
   // for GNU Classpath compatibility:
   void setSigners(Object[] signers) {
-    throw new UnsupportedOperationException();
+    if (signers != null && signers.length > 0) {
+      Static.signers.put(this, signers);
+    }
+  }
+
+  private static class Static {
+    public static final Map<Class,Object[]> signers = new HashMap();
   }
 }