diff --git a/server/src/com/cloud/network/ExternalIpAddressAllocator.java b/server/src/com/cloud/network/ExternalIpAddressAllocator.java
index 3cf358067ee..58b30f4d57b 100644
--- a/server/src/com/cloud/network/ExternalIpAddressAllocator.java
+++ b/server/src/com/cloud/network/ExternalIpAddressAllocator.java
@@ -16,6 +16,8 @@
 // under the License.
 package com.cloud.network;
 
+import static com.cloud.utils.AutoCloseableUtil.closeAutoCloseable;
+
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
@@ -81,12 +83,7 @@ public class ExternalIpAddressAllocator extends AdapterBase implements IpAddrAll
         } catch (IOException e) {
             return new IpAddr();
         } finally {
-            if (in != null) {
-                try {
-                    in.close();
-                } catch (IOException e) {
-                }
-            }
+            closeAutoCloseable(in, "closing buffered reader");
         }
 
     }
@@ -121,12 +118,7 @@ public class ExternalIpAddressAllocator extends AdapterBase implements IpAddrAll
         } catch (IOException e) {
             return false;
         } finally {
-            if (in != null) {
-                try {
-                    in.close();
-                } catch (IOException e) {
-                }
-            }
+            closeAutoCloseable(in, "buffered reader close");
         }
     }
 
diff --git a/server/src/com/cloud/network/lb/LoadBalancingRulesManagerImpl.java b/server/src/com/cloud/network/lb/LoadBalancingRulesManagerImpl.java
index d7a85b6ff4f..81b9bb1a622 100644
--- a/server/src/com/cloud/network/lb/LoadBalancingRulesManagerImpl.java
+++ b/server/src/com/cloud/network/lb/LoadBalancingRulesManagerImpl.java
@@ -693,6 +693,7 @@ public class LoadBalancingRulesManagerImpl<Type> extends ManagerBase implements
                         if (backupState.equals(FirewallRule.State.Active))
                             applyLoadBalancerConfig(cmd.getLbRuleId());
                     } catch (ResourceUnavailableException e1) {
+                        s_logger.info("[ignored] applying load balancer config.", e1);
                     } finally {
                         loadBalancer.setState(backupState);
                         _lbDao.persist(loadBalancer);
diff --git a/server/src/com/cloud/server/ConfigurationServerImpl.java b/server/src/com/cloud/server/ConfigurationServerImpl.java
index e7a928acfdb..5ff548c7f3e 100644
--- a/server/src/com/cloud/server/ConfigurationServerImpl.java
+++ b/server/src/com/cloud/server/ConfigurationServerImpl.java
@@ -43,7 +43,6 @@ import javax.crypto.SecretKey;
 import javax.inject.Inject;
 import javax.naming.ConfigurationException;
 
-import com.cloud.utils.nio.Link;
 import org.apache.commons.codec.binary.Base64;
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.lang.StringUtils;
@@ -118,6 +117,7 @@ import com.cloud.utils.db.TransactionLegacy;
 import com.cloud.utils.db.TransactionStatus;
 import com.cloud.utils.exception.CloudRuntimeException;
 import com.cloud.utils.net.NetUtils;
+import com.cloud.utils.nio.Link;
 import com.cloud.utils.script.Script;
 
 public class ConfigurationServerImpl extends ManagerBase implements ConfigurationServer {
@@ -757,6 +757,7 @@ public class ConfigurationServerImpl extends ManagerBase implements Configuratio
             try (DataInputStream dis = new DataInputStream(new FileInputStream(privkeyfile))) {
                 dis.readFully(arr1);
             } catch (EOFException e) {
+                s_logger.info("[ignored] eof reached");
             } catch (Exception e) {
                 s_logger.error("Cannot read the private key file", e);
                 throw new CloudRuntimeException("Cannot read the private key file");
@@ -766,6 +767,7 @@ public class ConfigurationServerImpl extends ManagerBase implements Configuratio
             try (DataInputStream dis = new DataInputStream(new FileInputStream(pubkeyfile))) {
                 dis.readFully(arr2);
             } catch (EOFException e) {
+                s_logger.info("[ignored] eof reached");
             } catch (Exception e) {
                 s_logger.warn("Cannot read the public key file", e);
                 throw new CloudRuntimeException("Cannot read the public key file");
@@ -902,7 +904,7 @@ public class ConfigurationServerImpl extends ManagerBase implements Configuratio
         } else {
             command = new Script("/bin/bash", s_logger);
         }
-        if (this.isOnWindows()) {
+        if (isOnWindows()) {
             scriptPath = scriptPath.replaceAll("\\\\" ,"/" );
             systemVmIsoPath = systemVmIsoPath.replaceAll("\\\\" ,"/" );
             publicKeyPath = publicKeyPath.replaceAll("\\\\" ,"/" );
diff --git a/server/src/com/cloud/servlet/ConsoleProxyServlet.java b/server/src/com/cloud/servlet/ConsoleProxyServlet.java
index 3389d92752f..cc788c7b118 100644
--- a/server/src/com/cloud/servlet/ConsoleProxyServlet.java
+++ b/server/src/com/cloud/servlet/ConsoleProxyServlet.java
@@ -228,12 +228,14 @@ public class ConsoleProxyServlet extends HttpServlet {
         try {
             w = Integer.parseInt(value);
         } catch (NumberFormatException e) {
+            s_logger.info("[ignored] not a number: " + value);
         }
 
         value = req.getParameter("h");
         try {
             h = Integer.parseInt(value);
         } catch (NumberFormatException e) {
+            s_logger.info("[ignored] not a number: " + value);
         }
 
         try {