diff --git a/web/src/main/java/org/apache/hadoop/util/ShutdownHookManagerProxy.java b/web/src/main/java/org/apache/hadoop/util/ShutdownHookManagerProxy.java
index 2affebbef..166c0e2d1 100644
--- a/web/src/main/java/org/apache/hadoop/util/ShutdownHookManagerProxy.java
+++ b/web/src/main/java/org/apache/hadoop/util/ShutdownHookManagerProxy.java
@@ -1,6 +1,5 @@
 package org.apache.hadoop.util;
 
-import org.apache.hadoop.util.ShutdownHookManager;
 import org.springframework.beans.factory.DisposableBean;
 
 public class ShutdownHookManagerProxy implements DisposableBean {
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/alarm/MainCategoryTest.java b/web/src/test/java/com/navercorp/pinpoint/web/alarm/MainCategoryTest.java
index 17431913b..a3c569eaa 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/alarm/MainCategoryTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/alarm/MainCategoryTest.java
@@ -16,10 +16,6 @@
 
 package com.navercorp.pinpoint.web.alarm;
 
-import org.junit.Assert;
-
-import org.junit.Test;
-
 public class MainCategoryTest {
 
 //    @Test
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/alarm/ReaderTest.java b/web/src/test/java/com/navercorp/pinpoint/web/alarm/ReaderTest.java
index d9bf21eee..2bd1a807b 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/alarm/ReaderTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/alarm/ReaderTest.java
@@ -93,7 +93,7 @@ public class ReaderTest {
             @Override
             public java.util.List<Rule> selectRuleByApplicationId(String applicationId) {
                 return new LinkedList<Rule>();
-            };
+            }
         };
         
         AlarmReader reader = new AlarmReader(dataCollectorFactory, applicationIndexDao, alarmService);
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/applicationmap/rawdata/LinkCallDataTest.java b/web/src/test/java/com/navercorp/pinpoint/web/applicationmap/rawdata/LinkCallDataTest.java
index 69b3c984b..c7bbd2367 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/applicationmap/rawdata/LinkCallDataTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/applicationmap/rawdata/LinkCallDataTest.java
@@ -1,7 +1,5 @@
 package com.navercorp.pinpoint.web.applicationmap.rawdata;
 
-import static org.junit.Assert.*;
-
 import java.util.concurrent.TimeUnit;
 
 import org.junit.Test;
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/calltree/span/CallTreeTest.java b/web/src/test/java/com/navercorp/pinpoint/web/calltree/span/CallTreeTest.java
index 01f9c4c4f..dd876d782 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/calltree/span/CallTreeTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/calltree/span/CallTreeTest.java
@@ -21,7 +21,6 @@ import static org.junit.Assert.*;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.junit.Ignore;
 import org.junit.Test;
 
 import com.navercorp.pinpoint.common.bo.SpanBo;
@@ -185,7 +184,7 @@ public class CallTreeTest {
             callTree.add(-1, makeSpanAlign(SYNC, (short) 21));
             callTree.add(-1, makeSpanAlign(SYNC, (short) 22));
             callTree.add(-1, makeSpanAlign(SYNC, (short) 23));
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
         assertDepth("missing-case-1", callTree, expectResult);
     }
@@ -217,7 +216,7 @@ public class CallTreeTest {
             callTree.add(4, makeSpanAlign(SYNC, (short) 15));
             callTree.add(-1, makeSpanAlign(SYNC, (short) 16));
             callTree.add(-1, makeSpanAlign(SYNC, (short) 17));
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
         assertDepth("missing-case-2", callTree, expectResult);
     }
@@ -233,7 +232,7 @@ public class CallTreeTest {
             // subTree.add(1, makeSpanAlign(ASYNC, (short) 0, -1, 1));
             subTree.add(2, makeSpanAlign(ASYNC, (short) 1, 2, 1));
             callTree.add(subTree);
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
         assertDepth("missing-case-3", callTree, expectResult);
     }
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/cluster/ClusterTest.java b/web/src/test/java/com/navercorp/pinpoint/web/cluster/ClusterTest.java
index 0a0a3c317..26ebea980 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/cluster/ClusterTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/cluster/ClusterTest.java
@@ -17,13 +17,9 @@
 package com.navercorp.pinpoint.web.cluster;
 
 import com.navercorp.pinpoint.common.util.NetUtils;
-import com.navercorp.pinpoint.rpc.MessageListener;
-import com.navercorp.pinpoint.rpc.PinpointSocket;
 import com.navercorp.pinpoint.rpc.client.PinpointClient;
 import com.navercorp.pinpoint.rpc.client.PinpointClientFactory;
 import com.navercorp.pinpoint.rpc.client.SimpleMessageListener;
-import com.navercorp.pinpoint.rpc.packet.RequestPacket;
-import com.navercorp.pinpoint.rpc.packet.SendPacket;
 import com.navercorp.pinpoint.web.cluster.connection.WebClusterConnectionManager;
 import com.navercorp.pinpoint.web.config.WebConfig;
 import com.navercorp.pinpoint.web.util.PinpointWebTestUtils;
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/cluster/PinpointRouteResponseTest.java b/web/src/test/java/com/navercorp/pinpoint/web/cluster/PinpointRouteResponseTest.java
index 9f4c082fd..77670fe22 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/cluster/PinpointRouteResponseTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/cluster/PinpointRouteResponseTest.java
@@ -19,8 +19,6 @@
 
 package com.navercorp.pinpoint.web.cluster;
 
-import com.navercorp.pinpoint.common.Version;
-import com.navercorp.pinpoint.rpc.util.AssertUtils;
 import com.navercorp.pinpoint.thrift.dto.command.TCommandEcho;
 import com.navercorp.pinpoint.thrift.dto.command.TCommandTransferResponse;
 import com.navercorp.pinpoint.thrift.dto.command.TRouteResult;
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/cluster/zookeeper/ZookeeperClusterTest.java b/web/src/test/java/com/navercorp/pinpoint/web/cluster/zookeeper/ZookeeperClusterTest.java
index f829215f0..3666441c7 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/cluster/zookeeper/ZookeeperClusterTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/cluster/zookeeper/ZookeeperClusterTest.java
@@ -47,7 +47,7 @@ public class ZookeeperClusterTest {
 
     private static final String COLLECTOR_NODE_PATH = "/pinpoint-cluster/collector";
     private static final String COLLECTOR_TEST_NODE_PATH = "/pinpoint-cluster/collector/test";
-    private static String CLUSTER_NODE_PATH;;
+    private static String CLUSTER_NODE_PATH;
 
     private static TestingServer ts = null;
 
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/controller/AlarmControllerTest.java b/web/src/test/java/com/navercorp/pinpoint/web/controller/AlarmControllerTest.java
index b0c0f6b67..c10479bbe 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/controller/AlarmControllerTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/controller/AlarmControllerTest.java
@@ -24,13 +24,10 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
-import java.awt.Container;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import org.hamcrest.Matcher;
-import org.hamcrest.Matchers;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Ignore;
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/controller/UserControllerTest.java b/web/src/test/java/com/navercorp/pinpoint/web/controller/UserControllerTest.java
index 9fc4a2201..a0c5de3c9 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/controller/UserControllerTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/controller/UserControllerTest.java
@@ -34,7 +34,6 @@ import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.web.WebAppConfiguration;
 import org.springframework.test.web.servlet.MockMvc;
-import org.springframework.test.web.servlet.MvcResult;
 import org.springframework.test.web.servlet.setup.MockMvcBuilders;
 import org.springframework.web.context.WebApplicationContext;
 
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/filter/FilterHintTest.java b/web/src/test/java/com/navercorp/pinpoint/web/filter/FilterHintTest.java
index 4feba86dd..bf158cc1d 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/filter/FilterHintTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/filter/FilterHintTest.java
@@ -17,20 +17,14 @@
 package com.navercorp.pinpoint.web.filter;
 
 
-import com.fasterxml.jackson.core.JsonParseException;
 import org.junit.Assert;
 import org.junit.Test;
 
-import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
 
 import java.io.IOException;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
 
 /**
  *
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/filter/LinkFilterTest.java b/web/src/test/java/com/navercorp/pinpoint/web/filter/LinkFilterTest.java
index b3afdf764..4ed6996c4 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/filter/LinkFilterTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/filter/LinkFilterTest.java
@@ -12,8 +12,6 @@ import org.slf4j.LoggerFactory;
 import java.util.Arrays;
 import java.util.Collections;
 
-import static org.junit.Assert.*;
-
 /**
  * @author emeroad
  */
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/mapper/AgentStatMapperTest.java b/web/src/test/java/com/navercorp/pinpoint/web/mapper/AgentStatMapperTest.java
index a54924ffc..71b7a5ab8 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/mapper/AgentStatMapperTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/mapper/AgentStatMapperTest.java
@@ -18,7 +18,6 @@ package com.navercorp.pinpoint.web.mapper;
 
 import static org.hamcrest.core.Is.*;
 import static org.junit.Assert.*;
-import static org.mockito.Matchers.*;
 import static org.mockito.Mockito.*;
 import static com.navercorp.pinpoint.common.hbase.HBaseTables.*;
 
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/service/BFSLinkSelectorTest.java b/web/src/test/java/com/navercorp/pinpoint/web/service/BFSLinkSelectorTest.java
index dc73748e3..e70bb5636 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/service/BFSLinkSelectorTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/service/BFSLinkSelectorTest.java
@@ -17,7 +17,6 @@
 package com.navercorp.pinpoint.web.service;
 
 import com.navercorp.pinpoint.common.trace.BaseHistogramSchema;
-import com.navercorp.pinpoint.common.trace.HistogramSchema;
 import com.navercorp.pinpoint.common.trace.ServiceType;
 import com.navercorp.pinpoint.web.applicationmap.rawdata.*;
 import com.navercorp.pinpoint.web.dao.HostApplicationMapDao;
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/util/DateLimiterTest.java b/web/src/test/java/com/navercorp/pinpoint/web/util/DateLimiterTest.java
index cad1c0bec..4bde9bcd6 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/util/DateLimiterTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/util/DateLimiterTest.java
@@ -61,13 +61,13 @@ public class DateLimiterTest {
         try {
             limiter.limit(0, TimeUnit.DAYS.toMillis(2) + 1);
             Assert.fail();
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
 
         try {
             limiter.limit(TimeUnit.DAYS.toMillis(2), 0);
             Assert.fail();
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
     }
 
@@ -77,13 +77,13 @@ public class DateLimiterTest {
         try {
             limiter.limit(new Range(0, TimeUnit.DAYS.toMillis(2) + 1));
             Assert.fail();
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
 
         try {
             limiter.limit(new Range(TimeUnit.DAYS.toMillis(2), 0));
             Assert.fail();
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
     }
 
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/util/LimitUtilsTest.java b/web/src/test/java/com/navercorp/pinpoint/web/util/LimitUtilsTest.java
index f9e35e238..3511e81a6 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/util/LimitUtilsTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/util/LimitUtilsTest.java
@@ -40,7 +40,7 @@ public class LimitUtilsTest {
         try {
             LimitUtils.checkRange(-1);
             Assert.fail();
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
 
     }
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/util/TimeWindowTest.java b/web/src/test/java/com/navercorp/pinpoint/web/util/TimeWindowTest.java
index dcdf5e82f..180b2a265 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/util/TimeWindowTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/util/TimeWindowTest.java
@@ -44,7 +44,7 @@ public class TimeWindowTest {
         try {
             iterator.next();
             Assert.fail("no more element");
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
 
         TimeWindow window2 = new TimeWindow(new Range(0L, TimeUnit.MINUTES.toMillis(1)));
@@ -55,7 +55,7 @@ public class TimeWindowTest {
         try {
             iterator2.next();
             Assert.fail("no more element");
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
     }
 
diff --git a/web/src/test/java/com/navercorp/pinpoint/web/vo/RangeTest.java b/web/src/test/java/com/navercorp/pinpoint/web/vo/RangeTest.java
index 0ac115a78..1adbc2036 100644
--- a/web/src/test/java/com/navercorp/pinpoint/web/vo/RangeTest.java
+++ b/web/src/test/java/com/navercorp/pinpoint/web/vo/RangeTest.java
@@ -34,7 +34,7 @@ public class RangeTest {
         try {
             Range range3 = new Range(0, -1);
             Assert.fail();
-        } catch (Exception e) {
+        } catch (Exception ignored) {
         }
 
     }