diff --git a/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/filter/GenericFilter.java b/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/filter/GenericFilter.java
index 7995468f675..ae7b92c40f1 100644
--- a/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/filter/GenericFilter.java
+++ b/dubbo-rpc/dubbo-rpc-api/src/main/java/org/apache/dubbo/rpc/filter/GenericFilter.java
@@ -76,8 +76,7 @@ public Result invoke(Invoker<?> invoker, Invocation inv) throws RpcException {
                 } else if (ProtocolUtils.isJavaGenericSerialization(generic)) {
                     for (int i = 0; i < args.length; i++) {
                         if (byte[].class == args[i].getClass()) {
-                            try {
-                                UnsafeByteArrayInputStream is = new UnsafeByteArrayInputStream((byte[]) args[i]);
+                            try(UnsafeByteArrayInputStream is = new UnsafeByteArrayInputStream((byte[]) args[i])) {
                                 args[i] = ExtensionLoader.getExtensionLoader(Serialization.class)
                                         .getExtension(Constants.GENERIC_SERIALIZATION_NATIVE_JAVA)
                                         .deserialize(null, is).readObject();
diff --git a/dubbo-rpc/dubbo-rpc-dubbo/src/main/java/org/apache/dubbo/rpc/protocol/dubbo/telnet/LogTelnetHandler.java b/dubbo-rpc/dubbo-rpc-dubbo/src/main/java/org/apache/dubbo/rpc/protocol/dubbo/telnet/LogTelnetHandler.java
index 5ab3c27a6fb..b62198d11d4 100644
--- a/dubbo-rpc/dubbo-rpc-dubbo/src/main/java/org/apache/dubbo/rpc/protocol/dubbo/telnet/LogTelnetHandler.java
+++ b/dubbo-rpc/dubbo-rpc-dubbo/src/main/java/org/apache/dubbo/rpc/protocol/dubbo/telnet/LogTelnetHandler.java
@@ -55,8 +55,7 @@ public String telnet(Channel channel, String message) {
                 int showLogLength = Integer.parseInt(str[0]);
 
                 if (file != null && file.exists()) {
-                    try {
-                        FileInputStream fis = new FileInputStream(file);
+                    try(FileInputStream fis = new FileInputStream(file)) {
                         FileChannel filechannel = fis.getChannel();
                         size = filechannel.size();
                         ByteBuffer bb;