diff --git a/dist/hap-sign-tool.jar b/dist/hap-sign-tool.jar
index ef39092cbf96d3235303a652786724e06ee08d93..0257b52ff85021e4b584235c09ad234c9758255a 100644
Binary files a/dist/hap-sign-tool.jar and b/dist/hap-sign-tool.jar differ
diff --git a/hapsigntool/hap_sign_tool/src/main/java/com/ohos/hapsigntool/HapSignTool.java b/hapsigntool/hap_sign_tool/src/main/java/com/ohos/hapsigntool/HapSignTool.java
index 4c8d7fb1804ad21e74816a6290a97f97d9dab36c..584816d2652508b702073565d6dc90d47021f978 100644
--- a/hapsigntool/hap_sign_tool/src/main/java/com/ohos/hapsigntool/HapSignTool.java
+++ b/hapsigntool/hap_sign_tool/src/main/java/com/ohos/hapsigntool/HapSignTool.java
@@ -96,9 +96,9 @@ public final class HapSignTool {
     public static boolean processCmd(String[] args) throws CustomException {
         if (args.length == 0 || StringUtils.isEmpty(args[0])) {
             help();
-        } else if (args[0].equals("-h") || args[0].contains("-help")) {
+        } else if ("-h".equals(args[0]) || "-help".equals(args[0])) {
             help();
-        } else if (args[0].equals("-v") || args[0].contains("-version")) {
+        } else if ("-v".equals(args[0]) || "-version".equals(args[0])) {
             version();
         } else {
             ServiceApi api = new SignToolServiceImpl();
diff --git a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/api/LocalizationAdapter.java b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/api/LocalizationAdapter.java
index a60a38fe784ea6ed9c2c101d3645172b1407c33d..981adf6060d0f98b771d05960fcf2e5abb54c224 100644
--- a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/api/LocalizationAdapter.java
+++ b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/api/LocalizationAdapter.java
@@ -248,7 +248,7 @@ public class LocalizationAdapter {
      */
     public boolean isOutFormChain() {
         String outForm = options.getString(Options.OUT_FORM, "certChain");
-        return outForm.equals("certChain");
+        return "certChain".equals(outForm);
     }
 
     /**
diff --git a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/hap/entity/SignatureBlockTypes.java b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/hap/entity/SignatureBlockTypes.java
index f1827dc6f150dbc7435bcfa1be110eeef08442a4..81b6ac7666ef7f4da204bfd16a46cfcdaaf317a6 100644
--- a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/hap/entity/SignatureBlockTypes.java
+++ b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/hap/entity/SignatureBlockTypes.java
@@ -52,10 +52,10 @@ public class SignatureBlockTypes {
      * @return profile block type value
      */
     public static char getProfileBlockTypes(String isSigned) {
-        if (isSigned != null && isSigned.equals("0")) {
+        if (isSigned != null && "0".equals(isSigned)) {
             return PROFILE_NOSIGNED_BLOCK;
         }
-        if (isSigned != null && isSigned.equals("1")) {
+        if (isSigned != null && "1".equals(isSigned)) {
             return PROFILE_SIGNED_BLOCK;
         }
         return PROFILE_NOSIGNED_BLOCK;
diff --git a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/profile/model/Provision.java b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/profile/model/Provision.java
index 6feda36b98f40a7b1eb6271020e2355862ab4d9b..15df101edc43f37d6878baf46e7adb3045625c1d 100644
--- a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/profile/model/Provision.java
+++ b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/profile/model/Provision.java
@@ -160,7 +160,7 @@ public class Provision {
     /**
      * buildType valid
      * @param buildType  buildType
-     * @return
+     * @return BuildType Valid
      */
     public static boolean isBuildTypeValid(String buildType) {
         return DEBUG.equals(buildType) || RELEASE.equals(buildType);
@@ -169,7 +169,7 @@ public class Provision {
     /**
      * buildType valid
      * @param buildType buildType
-     * @return
+     * @return  Is the buildType release
      */
     public static boolean isBuildTypeRelease(String buildType) {
         return RELEASE.equals(buildType);
diff --git a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/utils/ProfileUtils.java b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/utils/ProfileUtils.java
index 65d1fdd77d0c98e213db31c3169174597e685603..96c17df1522eeb20f1660d04bf4e33f4394df757 100644
--- a/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/utils/ProfileUtils.java
+++ b/hapsigntool/hap_sign_tool_lib/src/main/java/com/ohos/hapsigntool/utils/ProfileUtils.java
@@ -40,6 +40,6 @@ public class ProfileUtils {
         String json = JsonParser.parseString(new String(bytes, StandardCharsets.UTF_8)).toString();
         Provision provision = FileUtils.GSON.fromJson(new String(bytes, StandardCharsets.UTF_8), Provision.class);
         Provision.enforceValid(provision);
-        return json.getBytes();
+        return json.getBytes(StandardCharsets.UTF_8);
     }
 }
\ No newline at end of file