diff --git a/source/net/yacy/kelondro/order/CloneableMapIterator.java b/source/net/yacy/kelondro/order/CloneableMapIterator.java
index e9b2efbfc..ce8cc0707 100644
--- a/source/net/yacy/kelondro/order/CloneableMapIterator.java
+++ b/source/net/yacy/kelondro/order/CloneableMapIterator.java
@@ -55,9 +55,9 @@ public class CloneableMapIterator<E> implements CloneableIterator<E> {
 		this.last = null;
 	}
 	
-	@SuppressWarnings({ "unchecked", "rawtypes" })
-    public CloneableMapIterator<E> clone(final Object modifier) {
-		return new CloneableMapIterator(map, modifier);
+    @SuppressWarnings("unchecked")
+	public CloneableMapIterator<E> clone(final Object modifier) {
+		return new CloneableMapIterator<E>(map, (E) modifier);
 	}
 
 	public boolean hasNext() {
diff --git a/source/net/yacy/kelondro/rwi/IODispatcher.java b/source/net/yacy/kelondro/rwi/IODispatcher.java
index c38a865ec..b99ce3142 100644
--- a/source/net/yacy/kelondro/rwi/IODispatcher.java
+++ b/source/net/yacy/kelondro/rwi/IODispatcher.java
@@ -79,8 +79,8 @@ public class IODispatcher extends Thread {
         }
     }
 
-    @SuppressWarnings({ "unchecked", "rawtypes" })
-    protected synchronized void dump(ReferenceContainerCache<? extends Reference> cache, File file, ReferenceContainerArray<? extends Reference> array) {
+    @SuppressWarnings("unchecked")
+	protected synchronized void dump(ReferenceContainerCache<? extends Reference> cache, File file, ReferenceContainerArray<? extends Reference> array) {
         if (dumpQueue == null || controlQueue == null || !this.isAlive()) {
             Log.logWarning("IODispatcher", "emergency dump of file " + file.getName());
              if (!cache.isEmpty()) cache.dump(file, (int) Math.min(MemoryControl.available() / 3, writeBufferSize), true);
diff --git a/source/net/yacy/kelondro/util/FileUtils.java b/source/net/yacy/kelondro/util/FileUtils.java
index 9aefddafc..23bd04c98 100644
--- a/source/net/yacy/kelondro/util/FileUtils.java
+++ b/source/net/yacy/kelondro/util/FileUtils.java
@@ -814,7 +814,8 @@ public final class FileUtils {
         }
     }    
 
-    public static final File createTempFile(@SuppressWarnings("rawtypes") Class classObj, final String name) throws IOException {
+    @SuppressWarnings("unchecked")
+	public static final File createTempFile(Class classObj, final String name) throws IOException {
         String parserClassName = classObj.getName();
         int idx = parserClassName.lastIndexOf('.');
         if (idx != -1) {