diff --git a/brouter-codec/src/main/java/btools/codec/MicroCache2.java b/brouter-codec/src/main/java/btools/codec/MicroCache2.java
index 21aa5c2..c7b6878 100644
--- a/brouter-codec/src/main/java/btools/codec/MicroCache2.java
+++ b/brouter-codec/src/main/java/btools/codec/MicroCache2.java
@@ -289,7 +289,7 @@ public final class MicroCache2 extends MicroCache {
   public int encodeMicroCache(byte[] buffer) {
     HashMap<Long, Integer> idMap = new HashMap<>();
     for (int n = 0; n < size; n++) { // loop over nodes
-      idMap.put(Long.valueOf(expandId(faid[n])), Integer.valueOf(n));
+      idMap.put(expandId(faid[n]), n);
     }
 
     IntegerFifo3Pass linkCounts = new IntegerFifo3Pass(256);
@@ -404,7 +404,7 @@ public final class MicroCache2 extends MicroCache {
           }
 
           long link64 = ((long) ilonlink) << 32 | ilatlink;
-          Integer idx = idMap.get(Long.valueOf(link64));
+          Integer idx = idMap.get(link64);
           boolean isInternal = idx != null;
 
           if (isReverse && isInternal) {
diff --git a/brouter-core/src/main/java/btools/router/SuspectInfo.java b/brouter-core/src/main/java/btools/router/SuspectInfo.java
index b1f4cfe..34bc621 100644
--- a/brouter-core/src/main/java/btools/router/SuspectInfo.java
+++ b/brouter-core/src/main/java/btools/router/SuspectInfo.java
@@ -17,7 +17,7 @@ public class SuspectInfo {
   public int triggers;
 
   public static void addSuspect(Map<Long, SuspectInfo> map, long id, int prio, int trigger) {
-    Long iD = Long.valueOf(id);
+    Long iD = id;
     SuspectInfo info = map.get(iD);
     if (info == null) {
       info = new SuspectInfo();
diff --git a/brouter-expressions/src/main/java/btools/expressions/BExpressionContext.java b/brouter-expressions/src/main/java/btools/expressions/BExpressionContext.java
index 8f05277..2bfd2f0 100644
--- a/brouter-expressions/src/main/java/btools/expressions/BExpressionContext.java
+++ b/brouter-expressions/src/main/java/btools/expressions/BExpressionContext.java
@@ -528,7 +528,7 @@ public abstract class BExpressionContext implements IByteArrayUnifier {
       }
 
       // unknown name, create
-      num = Integer.valueOf(lookupValues.size());
+      num = lookupValues.size();
       lookupNumbers.put(name, num);
       lookupNames.add(name);
       lookupValues.add(new BExpressionLookupValue[]{new BExpressionLookupValue("")
@@ -855,7 +855,7 @@ public abstract class BExpressionContext implements IByteArrayUnifier {
     Integer num = variableNumbers.get(name);
     if (num == null) {
       if (create) {
-        num = Integer.valueOf(variableNumbers.size());
+        num = variableNumbers.size();
         variableNumbers.put(name, num);
       } else {
         return -1;
diff --git a/brouter-map-creator/src/main/java/btools/mapcreator/RelationMerger.java b/brouter-map-creator/src/main/java/btools/mapcreator/RelationMerger.java
index 7715bf8..8279d41 100644
--- a/brouter-map-creator/src/main/java/btools/mapcreator/RelationMerger.java
+++ b/brouter-map-creator/src/main/java/btools/mapcreator/RelationMerger.java
@@ -130,7 +130,7 @@ public class RelationMerger extends MapCreatorBase {
           if (routeset.contains(data.wid)) {
             int sepIdx = key.lastIndexOf('_');
             String tagname = key.substring(0, sepIdx);
-            int val = Integer.valueOf(key.substring(sepIdx + 1));
+            int val = Integer.parseInt(key.substring(sepIdx + 1));
             expctxReport.addSmallestLookupValue(tagname, val);
           }
         }
diff --git a/brouter-map-creator/src/main/java/btools/mapcreator/WayLinker.java b/brouter-map-creator/src/main/java/btools/mapcreator/WayLinker.java
index 2e1c273..91c70a9 100644
--- a/brouter-map-creator/src/main/java/btools/mapcreator/WayLinker.java
+++ b/brouter-map-creator/src/main/java/btools/mapcreator/WayLinker.java
@@ -480,7 +480,7 @@ public class WayLinker extends MapCreatorBase implements Runnable {
                   if (mc.expandId(shrinkid) != longId) {
                     throw new IllegalArgumentException("inconstistent shrinking: " + longId);
                   }
-                  sortedList.put(Integer.valueOf(shrinkid), n);
+                  sortedList.put(shrinkid, n);
                 }
 
                 for (OsmNodeP n : sortedList.values()) {
diff --git a/brouter-routing-app/src/main/java/btools/routingapp/BRouterWorker.java b/brouter-routing-app/src/main/java/btools/routingapp/BRouterWorker.java
index ec3fce0..4543b8d 100644
--- a/brouter-routing-app/src/main/java/btools/routingapp/BRouterWorker.java
+++ b/brouter-routing-app/src/main/java/btools/routingapp/BRouterWorker.java
@@ -107,7 +107,7 @@ public class BRouterWorker {
         String straight = params.getString("straight");
         String[] sa = straight.split(",");
         for (int i = 0; i < sa.length; i++) {
-          int v = Integer.valueOf(sa[i]);
+          int v = Integer.parseInt(sa[i]);
           if (waypoints.size() > v) waypoints.get(v).direct = true;
         }
       } catch (NumberFormatException e) {
diff --git a/brouter-server/src/main/java/btools/server/IpAccessMonitor.java b/brouter-server/src/main/java/btools/server/IpAccessMonitor.java
index b69c737..a9413e2 100644
--- a/brouter-server/src/main/java/btools/server/IpAccessMonitor.java
+++ b/brouter-server/src/main/java/btools/server/IpAccessMonitor.java
@@ -14,7 +14,7 @@ public class IpAccessMonitor {
     long t = System.currentTimeMillis();
     synchronized (sync) {
       Long lastTime = ipAccess.get(ip);
-      ipAccess.put(ip, Long.valueOf(t));
+      ipAccess.put(ip, t);
       return lastTime == null || t - lastTime.longValue() > MAX_IDLE;
     }
   }
diff --git a/brouter-server/src/main/java/btools/server/RouteServer.java b/brouter-server/src/main/java/btools/server/RouteServer.java
index 8bd4021..9ac91d9 100644
--- a/brouter-server/src/main/java/btools/server/RouteServer.java
+++ b/brouter-server/src/main/java/btools/server/RouteServer.java
@@ -195,7 +195,7 @@ public class RouteServer extends Thread implements Comparable<RouteServer> {
         if ("timode".equals(e.getKey())) {
           rc.turnInstructionMode = Integer.parseInt(e.getValue());
         } else if ("heading".equals(e.getKey())) {
-          rc.startDirection = Integer.valueOf(Integer.parseInt(e.getValue()));
+          rc.startDirection = Integer.parseInt(e.getValue());
           rc.forceUseStartDirection = true;
         } else if (e.getKey().startsWith("profile:")) {
           if (rc.keyValues == null) {
@@ -205,7 +205,7 @@ public class RouteServer extends Thread implements Comparable<RouteServer> {
         } else if (e.getKey().equals("straight")) {
           String[] sa = e.getValue().split(",");
           for (int i = 0; i < sa.length; i++) {
-            int v = Integer.valueOf(sa[i]);
+            int v = Integer.parseInt(sa[i]);
             if (wplist.size() > v) wplist.get(v).direct = true;
           }
         }
diff --git a/brouter-util/src/test/java/btools/util/CompactMapTest.java b/brouter-util/src/test/java/btools/util/CompactMapTest.java
index b0a4459..1217497 100644
--- a/brouter-util/src/test/java/btools/util/CompactMapTest.java
+++ b/brouter-util/src/test/java/btools/util/CompactMapTest.java
@@ -29,7 +29,7 @@ public class CompactMapTest {
     for (int i = 0; i < mapsize; i++) {
       String s = "" + i;
       long k = mapsize < 10 ? i : rand.nextInt(20000);
-      Long KK = new Long(k);
+      Long KK = k;
 
       if (!hmap.containsKey(KK)) {
         hmap.put(KK, s);
@@ -44,7 +44,7 @@ public class CompactMapTest {
         cmap_fast = new FrozenLongMap<>(cmap_fast);
       }
       long k = mapsize < 10 ? i : rand.nextInt(20000);
-      Long KK = new Long(k);
+      Long KK = k;
       String s = hmap.get(KK);
 
       boolean contained = hmap.containsKey(KK);
diff --git a/brouter-util/src/test/java/btools/util/CompactSetTest.java b/brouter-util/src/test/java/btools/util/CompactSetTest.java
index f36ba9d..e0f5340 100644
--- a/brouter-util/src/test/java/btools/util/CompactSetTest.java
+++ b/brouter-util/src/test/java/btools/util/CompactSetTest.java
@@ -28,7 +28,7 @@ public class CompactSetTest {
 
     for (int i = 0; i < setsize; i++) {
       long k = setsize < 10 ? i : rand.nextInt(20000);
-      Long KK = new Long(k);
+      Long KK = k;
 
       if (!hset.contains(KK)) {
         hset.add(KK);
@@ -43,7 +43,7 @@ public class CompactSetTest {
         cset_fast = new FrozenLongSet(cset_fast);
       }
       long k = setsize < 10 ? i : rand.nextInt(20000);
-      Long KK = new Long(k);
+      Long KK = k;
 
       boolean contained = hset.contains(KK);
       Assert.assertEquals("contains missmatch (slow)", contained, cset_slow.contains(k));
diff --git a/brouter-util/src/test/java/btools/util/DenseLongMapTest.java b/brouter-util/src/test/java/btools/util/DenseLongMapTest.java
index 0befe05..57e867a 100644
--- a/brouter-util/src/test/java/btools/util/DenseLongMapTest.java
+++ b/brouter-util/src/test/java/btools/util/DenseLongMapTest.java
@@ -22,15 +22,15 @@ public class DenseLongMapTest {
     for (int i = 0; i < mapsize; i++) {
       int value = i % 255;
       long k = (long) (rand.nextDouble() * keyrange);
-      Long KK = new Long(k);
+      Long KK = k;
 
-      hmap.put(KK, new Integer(value));
+      hmap.put(KK, value);
       dmap.put(k, value); // duplicate puts allowed!
     }
 
     for (int i = 0; i < trycount; i++) {
       long k = (long) (rand.nextDouble() * keyrange);
-      Long KK = new Long(k);
+      Long KK = k;
       Integer VV = hmap.get(KK);
       int hvalue = VV == null ? -1 : VV.intValue();
       int dvalue = dmap.getInt(k);
@@ -53,12 +53,12 @@ public class DenseLongMapTest {
     DenseLongMap dmap = new DenseLongMap(512);
     for (int i = 0; i < mapputs; i++) {
       long k = (long) (rand.nextDouble() * keyrange);
-      hset.add(new Long(k));
+      hset.add(k);
       dmap.put(k, 0);
     }
     for (int i = 0; i < trycount; i++) {
       long k = (long) (rand.nextDouble() * keyrange);
-      boolean hcontains = hset.contains(new Long(k));
+      boolean hcontains = hset.contains(k);
       boolean dcontains = dmap.getInt(k) == 0;
 
       if (hcontains != dcontains) {
diff --git a/config/pmd/pmd-ruleset.xml b/config/pmd/pmd-ruleset.xml
index bc415a8..787e663 100644
--- a/config/pmd/pmd-ruleset.xml
+++ b/config/pmd/pmd-ruleset.xml
@@ -28,7 +28,6 @@
         <exclude name="OneDeclarationPerLine" />
         <exclude name="OverrideBothEqualsAndHashcode" />
         <exclude name="PreserveStackTrace" />
-        <exclude name="PrimitiveWrapperInstantiation" />
         <exclude name="ReturnEmptyCollectionRatherThanNull" />
         <exclude name="UncommentedEmptyConstructor" />
         <exclude name="UncommentedEmptyMethodBody" />