diff --git a/dubbo-plugin/dubbo-security/src/main/java/org/apache/dubbo/security/cert/DubboCertManager.java b/dubbo-plugin/dubbo-security/src/main/java/org/apache/dubbo/security/cert/DubboCertManager.java
index bddef4a0942d..49b33e9b1e59 100644
--- a/dubbo-plugin/dubbo-security/src/main/java/org/apache/dubbo/security/cert/DubboCertManager.java
+++ b/dubbo-plugin/dubbo-security/src/main/java/org/apache/dubbo/security/cert/DubboCertManager.java
@@ -368,10 +368,9 @@ private String generatePrivatePemKey(KeyPair keyPair) throws IOException {
     private String generatePemKey(String type, byte[] content) throws IOException {
         PemObject pemObject = new PemObject(type, content);
         StringWriter str = new StringWriter();
-        JcaPEMWriter jcaPEMWriter = new JcaPEMWriter(str);
-        jcaPEMWriter.writeObject(pemObject);
-        jcaPEMWriter.close();
-        str.close();
+        try (JcaPEMWriter jcaPEMWriter = new JcaPEMWriter(str)) {
+            jcaPEMWriter.writeObject(pemObject);
+        }
         return str.toString();
     }
 
diff --git a/dubbo-rpc/dubbo-rpc-triple/src/main/java/org/apache/dubbo/rpc/protocol/tri/compressor/Bzip2.java b/dubbo-rpc/dubbo-rpc-triple/src/main/java/org/apache/dubbo/rpc/protocol/tri/compressor/Bzip2.java
index ab2c1bd3fec0..ffc9738c5c04 100644
--- a/dubbo-rpc/dubbo-rpc-triple/src/main/java/org/apache/dubbo/rpc/protocol/tri/compressor/Bzip2.java
+++ b/dubbo-rpc/dubbo-rpc-triple/src/main/java/org/apache/dubbo/rpc/protocol/tri/compressor/Bzip2.java
@@ -47,11 +47,8 @@ public byte[] compress(byte[] payloadByteArr) throws RpcException {
         }
 
         ByteArrayOutputStream out = new ByteArrayOutputStream();
-        BZip2CompressorOutputStream cos;
-        try {
-            cos = new BZip2CompressorOutputStream(out);
+        try (BZip2CompressorOutputStream cos = new BZip2CompressorOutputStream(out)) {
             cos.write(payloadByteArr);
-            cos.close();
         } catch (Exception e) {
             throw new IllegalStateException(e);
         }
@@ -75,9 +72,9 @@ public byte[] decompress(byte[] payloadByteArr) {
         }
 
         ByteArrayOutputStream out = new ByteArrayOutputStream();
-        ByteArrayInputStream in = new ByteArrayInputStream(payloadByteArr);
-        try {
-            BZip2CompressorInputStream unZip = new BZip2CompressorInputStream(in);
+        try (ByteArrayInputStream in = new ByteArrayInputStream(payloadByteArr);
+                BZip2CompressorInputStream unZip = new BZip2CompressorInputStream(in)) {
+
             byte[] buffer = new byte[2048];
             int n;
             while ((n = unZip.read(buffer)) >= 0) {