diff --git a/src/hotspot/share/opto/graphKit.cpp b/src/hotspot/share/opto/graphKit.cpp
index 7b891d55..0440d4cb 100644
--- a/src/hotspot/share/opto/graphKit.cpp
+++ b/src/hotspot/share/opto/graphKit.cpp
@@ -46,7 +46,6 @@
 #include "runtime/sharedRuntime.hpp"
 #include "utilities/bitMap.inline.hpp"
 #include "utilities/macros.hpp"
-#include "utilities/bitMap.inline.hpp"
 #if INCLUDE_SHENANDOAHGC
 #include "gc/shenandoah/c2/shenandoahBarrierSetC2.hpp"
 #endif
diff --git a/src/java.base/unix/native/libjava/path_util.c b/src/java.base/unix/native/libjava/path_util.c
index 8a533f81..4b978206 100644
--- a/src/java.base/unix/native/libjava/path_util.c
+++ b/src/java.base/unix/native/libjava/path_util.c
@@ -116,7 +116,6 @@ collapse(char *path)
     int nc;
     char **ix;
     int i, j;
-    char *p, *q;
 
     nc = collapsible(names);
     if (nc < 2) return;         /* Nothing to do */
diff --git a/src/jdk.crypto.kaeprovider/linux/classes/org/openeuler/security/openssl/KAEDHKeyPairGenerator.java b/src/jdk.crypto.kaeprovider/linux/classes/org/openeuler/security/openssl/KAEDHKeyPairGenerator.java
index 429c65fc..6094c82a 100644
--- a/src/jdk.crypto.kaeprovider/linux/classes/org/openeuler/security/openssl/KAEDHKeyPairGenerator.java
+++ b/src/jdk.crypto.kaeprovider/linux/classes/org/openeuler/security/openssl/KAEDHKeyPairGenerator.java
@@ -148,6 +148,9 @@ public class KAEDHKeyPairGenerator
             throw new ProviderException("Invoke nativeGenerateKeyPair failed.", e);
         }
 
+        // check keys
+        checkKeys(keys);
+
         BigInteger pubKey = new BigInteger(keys[0]);
         BigInteger priKey = new BigInteger(keys[1]);
 
@@ -162,5 +165,21 @@ public class KAEDHKeyPairGenerator
             throw new ProviderException(ikse);
         }
     }
+
+    private void checkKeys(byte[][] keys) {
+        if (keys == null) {
+            throw new ProviderException("Invalid keys, keys is null.");
+        }
+        // The keys needs to contain at least 2 byte arrays, which are public and private keys.
+        if (keys.length < 2) {
+            throw new ProviderException("Invalid keys, keys length is less than 2.");
+        }
+        for (int i = 0; i < keys.length; i++) {
+            if (keys[i] == null) {
+                throw new ProviderException("Invalid keys, keys[" + i + "]" + "is null.");
+            }
+        }
+    }
+
     protected native static byte[][] nativeGenerateKeyPair(byte[] p, byte[] g, int lSize);
 }
diff --git a/src/jdk.crypto.kaeprovider/linux/classes/org/openeuler/security/openssl/KAEECKeyPairGenerator.java b/src/jdk.crypto.kaeprovider/linux/classes/org/openeuler/security/openssl/KAEECKeyPairGenerator.java
index 60fa8183..f563f948 100644
--- a/src/jdk.crypto.kaeprovider/linux/classes/org/openeuler/security/openssl/KAEECKeyPairGenerator.java
+++ b/src/jdk.crypto.kaeprovider/linux/classes/org/openeuler/security/openssl/KAEECKeyPairGenerator.java
@@ -68,9 +68,8 @@ public class KAEECKeyPairGenerator extends KeyPairGeneratorSpi {
 
     private ECParameterSpec getParamsByCurve(String curveName) {
         byte[][] params = nativeGenerateParam(curveName);
-        if (params == null) {
-            throw new InvalidParameterException("unknown curve " + curveName);
-        }
+        // check params
+        checkParams(params, curveName);
         BigInteger p = new BigInteger(params[0]);
         BigInteger a = new BigInteger(params[1]);
         BigInteger b = new BigInteger(params[2]);
@@ -85,6 +84,21 @@ public class KAEECKeyPairGenerator extends KeyPairGeneratorSpi {
         return spec;
     }
 
+    private void checkParams(byte[][] params, String curveName) {
+        if (params == null) {
+            throw new InvalidParameterException("Unknown curve " + curveName);
+        }
+        // The params needs to contain at least 7 byte arrays, which are public and private keys
+        if (params.length < 7) {
+            throw new InvalidParameterException("The params length is less than 7.");
+        }
+        for (int i = 0; i < params.length; i++) {
+            if (params[i] == null) {
+                throw new InvalidParameterException("The params[" + i + "]" + "is null.");
+            }
+        }
+    }
+
     @Override
     public void initialize(AlgorithmParameterSpec param, SecureRandom random) throws InvalidAlgorithmParameterException {
         if (param instanceof ECParameterSpec) {
diff --git a/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_exception.c b/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_exception.c
index f684f6ee..56acbfd7 100644
--- a/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_exception.c
+++ b/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_exception.c
@@ -105,14 +105,10 @@ void KAE_ThrowFromOpenssl(JNIEnv* env, const char* msg, void (* defaultException
         KAE_TRACE("OpenSSL error in %s: err=%lx, lib=%x, reason=%x, file=%s, line=%d, estring=%s, data=%s", msg, err,
                   lib, reason, file, line, estring, (flags & ERR_TXT_STRING) ? data : "(no data)");
 
-        switch (lib) {
-            case ERR_LIB_EVP:
-            case ERR_LIB_RSA:
-                KAE_ThrowEvpException(env, reason, estring, defaultException);
-                break;
-            default:
-                defaultException(env, estring);
-                break;
+        if (lib == ERR_LIB_EVP || lib == ERR_LIB_RSA) {
+            KAE_ThrowEvpException(env, reason, estring, defaultException);
+        } else {
+            defaultException(env, estring);
         }
     }
 
diff --git a/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_hmac.c b/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_hmac.c
index 7b28fa1f..554a9750 100644
--- a/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_hmac.c
+++ b/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_hmac.c
@@ -182,7 +182,7 @@ JNIEXPORT jint JNICALL Java_org_openeuler_security_openssl_KAEHMac_nativeFinal
 
     // write back to output_array
     (*env)->SetByteArrayRegion(env, output, out_offset, bytesWritten, (jbyte*) temp_result);
-    KAE_TRACE("KAEHMac_nativeFinal success, output_offset = %d, bytesWritten = %d", out_offset, bytesWritten);
+    KAE_TRACE("KAEHMac_nativeFinal success, output_offset = %d, bytesWritten = %u", out_offset, bytesWritten);
 
 cleanup:
     free(temp_result);
diff --git a/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_keypairgenerator_rsa.c b/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_keypairgenerator_rsa.c
index d4c9d6ac..6785f543 100644
--- a/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_keypairgenerator_rsa.c
+++ b/src/jdk.crypto.kaeprovider/linux/native/libj2kae/org/openeuler/security/openssl/kae_keypairgenerator_rsa.c
@@ -133,7 +133,8 @@ static jobjectArray NewRSAKeyParams(JNIEnv* env, RSA* rsa) {
     }
 
     // set rsa key param
-    for (RSAParamIndex paramIndex = rsaN; paramIndex <= rsaIqmp; paramIndex++) {
+    RSAParamIndex paramIndex;
+    for (paramIndex = rsaN; paramIndex <= rsaIqmp; paramIndex++) {
         if (!SetRSAKeyParam(env, rsa, params, paramIndex)) {
             return NULL;
         }