diff --git a/CHANGES.txt b/CHANGES.txt
index b1f758c7d..b10037ed6 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -369,3 +369,5 @@
 -- Changes in 3.0.11
 
 * 升级到springext-maven-plugin 1.2
+* 删除intellij:annotations依赖，因为还不能全面使用这个机制，不如先删除。
+* 将velocity/freemarker的依赖改成scope=provided。应用程序如果需要的话，必须明确声明依赖它们。
diff --git a/CHANGES_SINCE_3.1.0.txt b/CHANGES_SINCE_3.1.0.txt
index 2e93df449..6804d54af 100644
--- a/CHANGES_SINCE_3.1.0.txt
+++ b/CHANGES_SINCE_3.1.0.txt
@@ -117,3 +117,5 @@
 -- Changes in 3.1.3
 
 * 升级到springext-maven-plugin 1.2
+* 删除intellij:annotations依赖，因为还不能全面使用这个机制，不如先删除。
+* 将velocity/freemarker的依赖改成scope=provided。应用程序如果需要的话，必须明确声明依赖它们。
diff --git a/CHANGES_SINCE_3.2.0.txt b/CHANGES_SINCE_3.2.0.txt
index d847a19c1..d262dff44 100644
--- a/CHANGES_SINCE_3.2.0.txt
+++ b/CHANGES_SINCE_3.2.0.txt
@@ -46,3 +46,5 @@
 -- Changes in 3.2.1
 
 * 升级到springext-maven-plugin 1.2
+* 删除intellij:annotations依赖，因为还不能全面使用这个机制，不如先删除。
+* 将velocity/freemarker的依赖改成scope=provided。应用程序如果需要的话，必须明确声明依赖它们。
diff --git a/common/springext/src/main/java/com/alibaba/citrus/springext/ResourceResolver.java b/common/springext/src/main/java/com/alibaba/citrus/springext/ResourceResolver.java
index eca2e6b7a..cdf596b57 100644
--- a/common/springext/src/main/java/com/alibaba/citrus/springext/ResourceResolver.java
+++ b/common/springext/src/main/java/com/alibaba/citrus/springext/ResourceResolver.java
@@ -27,8 +27,6 @@
 import java.util.Map.Entry;
 import java.util.Properties;
 
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.core.io.InputStreamSource;
@@ -52,16 +50,14 @@ public abstract class ResourceResolver {
      * 取得指定位置的一个资源。
      * 如果资源不存在，则返回<code>null</code>。
      */
-    @Nullable
-    public abstract Resource getResource(@NotNull String location);
+    public abstract Resource getResource(String location);
 
     /**
      * 找到所有符合名称的资源。支持同名资源的查找，例如，查找所有jar包中的/META-INF/spring.schemas文件。该方法还支持通配符。
      *
      * @throws IOException 如果在寻找过程中出错
      */
-    @NotNull
-    public abstract Resource[] getResources(@NotNull String locationPattern) throws IOException;
+    public abstract Resource[] getResources(String locationPattern) throws IOException;
 
     /** 从<code>ResourceResolver</code>中读取所有指定名称的资源文件，对每一个key/value调用handler。 */
     public final void loadAllProperties(String resourceName, PropertyHandler handler)
diff --git a/common/springext/src/main/java/com/alibaba/citrus/springext/support/ClasspathResourceResolver.java b/common/springext/src/main/java/com/alibaba/citrus/springext/support/ClasspathResourceResolver.java
index bbd273f42..a7e23fffc 100644
--- a/common/springext/src/main/java/com/alibaba/citrus/springext/support/ClasspathResourceResolver.java
+++ b/common/springext/src/main/java/com/alibaba/citrus/springext/support/ClasspathResourceResolver.java
@@ -27,9 +27,6 @@
 import java.net.URL;
 
 import com.alibaba.citrus.springext.ResourceResolver;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-import org.springframework.core.io.Resource;
 import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
 import org.springframework.core.io.support.ResourcePatternResolver;
 
@@ -46,8 +43,7 @@ public ClasspathResourceResolver(ClassLoader classLoader) {
     }
 
     @Override
-    @Nullable
-    public Resource getResource(@NotNull String location) {
+    public Resource getResource(String location) {
         org.springframework.core.io.Resource springResource = resolver.getResource(CLASSPATH_URL_PREFIX + location);
 
         if (springResource != null && springResource.exists()) {
@@ -58,8 +54,7 @@ public Resource getResource(@NotNull String location) {
     }
 
     @Override
-    @NotNull
-    public Resource[] getResources(@NotNull String locationPattern) throws IOException {
+    public Resource[] getResources(String locationPattern) throws IOException {
         org.springframework.core.io.Resource[] springResources = resolver.getResources(CLASSPATH_ALL_URL_PREFIX + locationPattern);
 
         if (springResources == null) {
@@ -86,7 +81,6 @@ private SpringResourceAdapter(org.springframework.core.io.Resource springResourc
             this.springResource = assertNotNull(springResource, "missing spring resource");
         }
 
-        @NotNull
         public org.springframework.core.io.Resource getUnderlyingResource() {
             return springResource;
         }
diff --git a/common/springext/src/main/java/com/alibaba/citrus/springext/support/SpringExtSchemaSet.java b/common/springext/src/main/java/com/alibaba/citrus/springext/support/SpringExtSchemaSet.java
index b6aefc7bd..7e3dc2194 100644
--- a/common/springext/src/main/java/com/alibaba/citrus/springext/support/SpringExtSchemaSet.java
+++ b/common/springext/src/main/java/com/alibaba/citrus/springext/support/SpringExtSchemaSet.java
@@ -38,7 +38,6 @@
 import com.alibaba.citrus.springext.impl.SpringPluggableSchemas;
 import com.alibaba.citrus.springext.support.SchemaUtil.AnyElementVisitor;
 import com.alibaba.citrus.util.ToStringBuilder;
-import org.jetbrains.annotations.NotNull;
 
 /**
  * 创建一个schema set，其中包含以下所有的schemas：
@@ -202,32 +201,27 @@ private synchronized void ensureTreeBuilt(boolean includingAllContributions) {
     public static interface TreeItem {
         boolean hasChildren();
 
-        @NotNull
         TreeItem[] getChildren();
     }
 
     public static interface NamespaceItem extends TreeItem {
-        @NotNull
         String getNamespace();
 
-        @NotNull
         Set<Schema> getSchemas();
     }
 
     public static interface ParentOf<C extends TreeItem> {
-        @NotNull
         Map<String, C> getChildrenMap();
     }
 
     public static class ConfigurationPointItem extends AbstractNamespaceItem<ContributionItem> {
         private final ConfigurationPoint configurationPoint;
 
-        public ConfigurationPointItem(@NotNull String namespace, @NotNull Set<Schema> schemas, @NotNull ConfigurationPoint configurationPoint) {
+        public ConfigurationPointItem(String namespace, Set<Schema> schemas, ConfigurationPoint configurationPoint) {
             super(ContributionItem.class, namespace, schemas);
             this.configurationPoint = configurationPoint;
         }
 
-        @NotNull
         public ConfigurationPoint getConfigurationPoint() {
             return configurationPoint;
         }
@@ -236,12 +230,11 @@ public ConfigurationPoint getConfigurationPoint() {
     public static class ContributionItem extends AbstractTreeItem<ConfigurationPointItem> {
         private final Contribution contribution;
 
-        public ContributionItem(@NotNull Contribution contribution) {
+        public ContributionItem(Contribution contribution) {
             super(ConfigurationPointItem.class);
             this.contribution = contribution;
         }
 
-        @NotNull
         public Contribution getContribution() {
             return contribution;
         }
@@ -253,7 +246,7 @@ public String toString() {
     }
 
     public static class SpringPluggableItem extends AbstractNamespaceItem<TreeItem> {
-        public SpringPluggableItem(@NotNull String namespace, @NotNull Set<Schema> schemas) {
+        public SpringPluggableItem(String namespace, Set<Schema> schemas) {
             super(TreeItem.class, namespace, schemas);
         }
     }
@@ -262,7 +255,7 @@ private static abstract class AbstractTreeItem<C extends TreeItem> implements Tr
         protected final Map<String, C> children = createTreeMap();
         private final Class<C> childType;
 
-        protected AbstractTreeItem(@NotNull Class<C> childType) {
+        protected AbstractTreeItem(Class<C> childType) {
             this.childType = assertNotNull(childType, "child item type");
         }
 
@@ -271,19 +264,16 @@ public boolean hasChildren() {
             return !children.isEmpty();
         }
 
-        @NotNull
         public C[] getChildren() {
             C[] copy = (C[]) Array.newInstance(childType, children.size());
             return children.values().toArray(copy);
         }
 
-        @NotNull
         @Override
         public Map<String, C> getChildrenMap() {
             return children;
         }
 
-        @NotNull
         public String dump() {
             ToStringBuilder buf = new ToStringBuilder();
             dump(buf);
@@ -311,18 +301,16 @@ private static abstract class AbstractNamespaceItem<C extends TreeItem> extends
         private final String      namespace;
         private final Set<Schema> schemas;
 
-        protected AbstractNamespaceItem(@NotNull Class<C> childType, @NotNull String namespace, @NotNull Set<Schema> schemas) {
+        protected AbstractNamespaceItem(Class<C> childType, String namespace, Set<Schema> schemas) {
             super(childType);
             this.namespace = namespace;
             this.schemas = schemas;
         }
 
-        @NotNull
         public String getNamespace() {
             return namespace;
         }
 
-        @NotNull
         public Set<Schema> getSchemas() {
             return schemas;
         }
@@ -358,7 +346,7 @@ public NamespaceItem[] getIndependentNamespaceItems() {
             return independentItems.values().toArray(new NamespaceItem[independentItems.size()]);
         }
 
-        private boolean buildNamespaceItemRecursively(@NotNull String namespace) {
+        private boolean buildNamespaceItemRecursively(String namespace) {
             if (buildingNamespaces.contains(namespace)) {
                 return false; // 防止递归失控
             }
@@ -373,7 +361,7 @@ private boolean buildNamespaceItemRecursively(@NotNull String namespace) {
             return true;
         }
 
-        private void buildNamespaceItem(@NotNull String namespace) {
+        private void buildNamespaceItem(String namespace) {
             if (items.containsKey(namespace)) {
                 return; // 防止重复build
             }
@@ -404,13 +392,13 @@ else if (schema instanceof ConfigurationPointSchemaSourceInfo) {
             }
         }
 
-        private void buildSpringPluggableItem(@NotNull String namespace, @NotNull Set<Schema> schemas) {
+        private void buildSpringPluggableItem(String namespace, Set<Schema> schemas) {
             NamespaceItem item = createSpringPluggableItem(namespace, schemas);
             items.put(namespace, item);
             independentItems.put(namespace, item);
         }
 
-        private void buildConfigurationPointItem(@NotNull String namespace, @NotNull Set<Schema> schemas, @NotNull ConfigurationPointSchemaSourceInfo schema) {
+        private void buildConfigurationPointItem(String namespace, Set<Schema> schemas, ConfigurationPointSchemaSourceInfo schema) {
             ConfigurationPoint configurationPoint = (ConfigurationPoint) schema.getParent();
             ConfigurationPointItem item = createConfigurationPointItem(namespace, schemas, configurationPoint);
             items.put(namespace, item);
@@ -460,7 +448,7 @@ private void buildContributionItem(String namespace, ConfigurationPointItem item
     }
 
     /** Template method */
-    protected ConfigurationPointItem createConfigurationPointItem(@NotNull String namespace, @NotNull Set<Schema> schemas, @NotNull ConfigurationPoint configurationPoint) {
+    protected ConfigurationPointItem createConfigurationPointItem(String namespace, Set<Schema> schemas, ConfigurationPoint configurationPoint) {
         return new ConfigurationPointItem(namespace, schemas, configurationPoint);
     }
 
@@ -470,12 +458,12 @@ protected ContributionItem createContributionItem(Contribution contribution) {
     }
 
     /** Template method */
-    protected SpringPluggableItem createSpringPluggableItem(@NotNull String namespace, @NotNull Set<Schema> schemas) {
+    protected SpringPluggableItem createSpringPluggableItem(String namespace, Set<Schema> schemas) {
         return new SpringPluggableItem(namespace, schemas);
     }
 
     /** Template method */
-    protected <C extends TreeItem> void addChildItem(@NotNull ParentOf<C> parent, @NotNull String key, @NotNull C childItem) {
+    protected <C extends TreeItem> void addChildItem(ParentOf<C> parent, String key, C childItem) {
         parent.getChildrenMap().put(key, childItem);
     }
 }
diff --git a/common/springext/src/test/java/com/alibaba/citrus/springext/impl/UnqualifiedStyleTests.java b/common/springext/src/test/java/com/alibaba/citrus/springext/impl/UnqualifiedStyleTests.java
index e31ab39e3..dd383f472 100644
--- a/common/springext/src/test/java/com/alibaba/citrus/springext/impl/UnqualifiedStyleTests.java
+++ b/common/springext/src/test/java/com/alibaba/citrus/springext/impl/UnqualifiedStyleTests.java
@@ -31,8 +31,6 @@
 import com.alibaba.citrus.springext.util.ConvertToUnqualifiedStyle;
 import com.alibaba.citrus.test.TestEnvStatic;
 import com.alibaba.citrus.util.io.StreamUtil;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
 import org.junit.Test;
 
 public class UnqualifiedStyleTests {
@@ -58,9 +56,8 @@ public void unqualifiedStyleContribution() throws Exception {
     @Test
     public void qualifiedStyleContribution() throws Exception {
         cps = new ConfigurationPointsImpl(new ClasspathResourceResolver(getClass().getClassLoader()) {
-            @Nullable
             @Override
-            public Resource getResource(@NotNull String location) {
+            public Resource getResource(String location) {
                 String name = ConvertToUnqualifiedStyle.class.getName().replace('.', '/') + ".class";
 
                 if (name.equals(location)) {
diff --git a/common/util/pom.xml b/common/util/pom.xml
index e210a3be0..e183a80c6 100644
--- a/common/util/pom.xml
+++ b/common/util/pom.xml
@@ -28,9 +28,5 @@
             <groupId>${project.groupId}</groupId>
             <artifactId>citrus-common-servlet</artifactId>
         </dependency>
-        <dependency>
-            <groupId>com.intellij</groupId>
-            <artifactId>annotations</artifactId>
-        </dependency>
     </dependencies>
 </project>
diff --git a/common/util/src/main/java/com/alibaba/citrus/util/Assert.java b/common/util/src/main/java/com/alibaba/citrus/util/Assert.java
index ee8216b2b..e0fc8ebd8 100644
--- a/common/util/src/main/java/com/alibaba/citrus/util/Assert.java
+++ b/common/util/src/main/java/com/alibaba/citrus/util/Assert.java
@@ -19,9 +19,6 @@
 
 import static com.alibaba.citrus.util.Assert.ExceptionType.*;
 
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-
 /**
  * 断言工具，用来实现<a
  * href="http://martinfowler.com/ieeeSoftware/failFast.pdf">Fail-Fast</a>。
@@ -69,20 +66,17 @@
  */
 public final class Assert {
     /** 确保对象不为空，否则抛出<code>IllegalArgumentException</code>。 */
-    @NotNull
-    public static <T> T assertNotNull(@Nullable T object) {
+    public static <T> T assertNotNull(T object) {
         return assertNotNull(object, null, null, (Object[]) null);
     }
 
     /** 确保对象不为空，否则抛出<code>IllegalArgumentException</code>。 */
-    @NotNull
-    public static <T> T assertNotNull(@Nullable T object, String message, Object... args) {
+    public static <T> T assertNotNull(T object, String message, Object... args) {
         return assertNotNull(object, null, message, args);
     }
 
     /** 确保对象不为空，否则抛出指定异常，默认为<code>IllegalArgumentException</code>。 */
-    @NotNull
-    public static <T> T assertNotNull(@Nullable T object, ExceptionType exceptionType, String message, Object... args) {
+    public static <T> T assertNotNull(T object, ExceptionType exceptionType, String message, Object... args) {
         if (object == null) {
             if (exceptionType == null) {
                 exceptionType = ILLEGAL_ARGUMENT;
@@ -193,7 +187,7 @@ public static <T> T unsupportedOperation(String message, Object... args) {
     }
 
     /** 取得带参数的消息。 */
-    private static String getMessage(@Nullable String message, @Nullable Object[] args, @NotNull String defaultMessage) {
+    private static String getMessage(String message, Object[] args, String defaultMessage) {
         if (message == null) {
             message = defaultMessage;
         }
diff --git a/pom.xml b/pom.xml
index 7ece35b88..edaa156b1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -424,11 +424,13 @@
                 <groupId>org.apache.velocity</groupId>
                 <artifactId>velocity</artifactId>
                 <version>1.7</version>
+                <scope>provided</scope>
             </dependency>
             <dependency>
                 <groupId>org.freemarker</groupId>
                 <artifactId>freemarker</artifactId>
                 <version>2.3.19</version>
+                <scope>provided</scope>
             </dependency>
             <dependency>
                 <groupId>commons-fileupload</groupId>
@@ -577,11 +579,6 @@
                 <version>3.0.1</version>
                 <scope>compile</scope>
             </dependency>
-            <dependency>
-                <groupId>com.intellij</groupId>
-                <artifactId>annotations</artifactId>
-                <version>9.0.4</version>
-            </dependency>
         </dependencies>
     </dependencyManagement>
     <build>
diff --git a/service/mail/pom.xml b/service/mail/pom.xml
index a9bf31880..37ee07718 100644
--- a/service/mail/pom.xml
+++ b/service/mail/pom.xml
@@ -42,6 +42,14 @@
             <artifactId>citrus-service-freemarker</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.apache.velocity</groupId>
+            <artifactId>velocity</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.freemarker</groupId>
+            <artifactId>freemarker</artifactId>
+        </dependency>
         <dependency>
             <groupId>${project.groupId}</groupId>
             <artifactId>citrus-test-util</artifactId>
diff --git a/webx/turbine/pom.xml b/webx/turbine/pom.xml
index ef7d38df9..f62973b40 100644
--- a/webx/turbine/pom.xml
+++ b/webx/turbine/pom.xml
@@ -37,6 +37,10 @@
             <artifactId>citrus-service-velocity</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.apache.velocity</groupId>
+            <artifactId>velocity</artifactId>
+        </dependency>
         <dependency>
             <groupId>${project.groupId}</groupId>
             <artifactId>citrus-common-logconfig</artifactId>