diff --git a/src/main/idea/io/github/linwancen/plugin/show/java/JavaLangDoc.java b/src/main/idea/io/github/linwancen/plugin/show/java/JavaLangDoc.java
index 9b1cea2..4fb07f1 100644
--- a/src/main/idea/io/github/linwancen/plugin/show/java/JavaLangDoc.java
+++ b/src/main/idea/io/github/linwancen/plugin/show/java/JavaLangDoc.java
@@ -24,6 +24,7 @@ import io.github.linwancen.plugin.show.java.doc.NewDoc;
 import io.github.linwancen.plugin.show.java.doc.ParamDoc;
 import io.github.linwancen.plugin.show.java.doc.PsiMethodToPsiDoc;
 import io.github.linwancen.plugin.show.java.line.OwnerToPsiDocSkip;
+import io.github.linwancen.plugin.show.java.line.SkipUtils;
 import io.github.linwancen.plugin.show.lang.base.BaseTagLangDoc;
 import io.github.linwancen.plugin.show.lang.base.DocFilter;
 import org.jetbrains.annotations.NotNull;
@@ -80,6 +81,9 @@ public class JavaLangDoc extends BaseTagLangDoc<PsiDocComment> {
 
     @Override
     public @Nullable <T extends SettingsInfo> String resolveDocPrint(@NotNull T info, @NotNull PsiElement resolve) {
+        if (SkipUtils.skipSign(info, resolve)) {
+            return null;
+        }
         @Nullable String resolveDocPrint = super.resolveDocPrint(info, resolve);
         if (resolveDocPrint != null) {
             return resolveDocPrint;
@@ -147,7 +151,7 @@ public class JavaLangDoc extends BaseTagLangDoc<PsiDocComment> {
         if (element instanceof PsiWhiteSpace && sb.length() > 0) {
             return true;
         }
-        PsiElement[] children = element.getChildren();
+        @NotNull PsiElement[] children = element.getChildren();
         if (children.length > 0) {
             if (children.length >= 3) {
                 DocFilter.addHtml(sb, children[children.length - 2].getText());
@@ -167,7 +171,7 @@ public class JavaLangDoc extends BaseTagLangDoc<PsiDocComment> {
             if (value != null) {
                 DocFilter.addHtml(tagStrBuilder, value.getText());
             } else  {
-                PsiElement[] dataElements = tag.getDataElements();
+                @NotNull PsiElement[] dataElements = tag.getDataElements();
                 if (dataElements.length > 0) {
                     DocFilter.addHtml(tagStrBuilder, dataElements[0].getText());
                 }
diff --git a/src/main/idea/io/github/linwancen/plugin/show/java/ScalaLangDoc.java b/src/main/idea/io/github/linwancen/plugin/show/java/ScalaLangDoc.java
index 5903176..0542790 100644
--- a/src/main/idea/io/github/linwancen/plugin/show/java/ScalaLangDoc.java
+++ b/src/main/idea/io/github/linwancen/plugin/show/java/ScalaLangDoc.java
@@ -46,7 +46,7 @@ public class ScalaLangDoc extends JavaLangDoc {
                                                                   @NotNull PsiElement resolve) {
         if (resolve instanceof PsiDocCommentOwner) {
             @NotNull PsiDocCommentOwner psiDocCommentOwner = (PsiDocCommentOwner) resolve;
-            return OwnerToPsiDocSkip.refDocWithOutSkip(info, psiDocCommentOwner);
+            return OwnerToPsiDocSkip.refDocWithOutSkip(psiDocCommentOwner);
         }
         return null;
     }
@@ -55,8 +55,8 @@ public class ScalaLangDoc extends JavaLangDoc {
     @Override
     protected <T extends SettingsInfo> String descDoc(@NotNull T info, @NotNull PsiDocComment psiDocComment) {
         @NotNull PsiElement[] elements = psiDocComment.getChildren();
-        StringBuilder sb = new StringBuilder();
-        for (PsiElement element : elements) {
+        @NotNull StringBuilder sb = new StringBuilder();
+        for (@NotNull PsiElement element : elements) {
             if (!(element instanceof PsiDocTag)) {
                 sb.append(element.getText());
             }
@@ -70,7 +70,7 @@ public class ScalaLangDoc extends JavaLangDoc {
         @NotNull PsiDocTag[] tags = psiDocComment.findTagsByName("@" + name);
         for (@NotNull PsiDocTag tag : tags) {
             if (tag instanceof ScDocTag) {
-                ScDocTag scDocTag = (ScDocTag) tag;
+                @NotNull ScDocTag scDocTag = (ScDocTag) tag;
                 String doc = scDocTag.getCommentDataText();
                 DocFilter.addHtml(tagStrBuilder, doc);
             }
diff --git a/src/main/idea/io/github/linwancen/plugin/show/java/line/NewCallRefToPsiDoc.java b/src/main/idea/io/github/linwancen/plugin/show/java/line/NewCallRefToPsiDoc.java
index 6938479..4b6701d 100644
--- a/src/main/idea/io/github/linwancen/plugin/show/java/line/NewCallRefToPsiDoc.java
+++ b/src/main/idea/io/github/linwancen/plugin/show/java/line/NewCallRefToPsiDoc.java
@@ -36,7 +36,8 @@ public class NewCallRefToPsiDoc {
             } catch (Throwable ignore) {
                 // ignore
             }
-            return OwnerToPsiDocSkip.refDoc(info, ((PsiDocCommentOwner) resolve));
+            @NotNull PsiDocCommentOwner psiDocCommentOwner = (PsiDocCommentOwner) resolve;
+            return OwnerToPsiDocSkip.refDoc(info, psiDocCommentOwner);
         }
         return null;
     }
diff --git a/src/main/idea/io/github/linwancen/plugin/show/java/line/OwnerToPsiDocSkip.java b/src/main/idea/io/github/linwancen/plugin/show/java/line/OwnerToPsiDocSkip.java
index f3addf7..4f7b355 100644
--- a/src/main/idea/io/github/linwancen/plugin/show/java/line/OwnerToPsiDocSkip.java
+++ b/src/main/idea/io/github/linwancen/plugin/show/java/line/OwnerToPsiDocSkip.java
@@ -17,22 +17,14 @@ public class OwnerToPsiDocSkip {
 
     @Nullable
     public static <T extends SettingsInfo> PsiDocComment refDoc(@NotNull T info,
-                                                                @Nullable PsiDocCommentOwner docOwner) {
-        return SkipUtils.skipDoc(info, refDocWithOutSkip(info, docOwner));
+                                                                @NotNull PsiDocCommentOwner docOwner) {
+        return SkipUtils.skipDoc(info, refDocWithOutSkip(docOwner));
     }
 
     @Nullable
-    public static <T extends SettingsInfo> PsiDocComment refDocWithOutSkip(@NotNull T info,
-                                                                            @Nullable PsiDocCommentOwner docOwner) {
-        if (docOwner == null) {
-            return null;
-        }
-        if (SkipUtils.skipSign(info, docOwner)) {
-            return null;
-        }
-        @Nullable PsiDocComment docComment = docOwner instanceof PsiMethod
+    public static <T extends SettingsInfo> PsiDocComment refDocWithOutSkip(@NotNull PsiDocCommentOwner docOwner) {
+        return docOwner instanceof PsiMethod
                 ? PsiMethodToPsiDoc.methodSupperNewPropDoc(((PsiMethod) docOwner))
                 : docOwner.getDocComment();
-        return docComment;
     }
 }
diff --git a/src/main/idea/io/github/linwancen/plugin/show/java/line/SkipUtils.java b/src/main/idea/io/github/linwancen/plugin/show/java/line/SkipUtils.java
index 5f57f2f..41363a5 100644
--- a/src/main/idea/io/github/linwancen/plugin/show/java/line/SkipUtils.java
+++ b/src/main/idea/io/github/linwancen/plugin/show/java/line/SkipUtils.java
@@ -11,14 +11,14 @@ import org.apache.commons.lang3.StringUtils;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-class SkipUtils {
+public class SkipUtils {
 
     private SkipUtils() {}
 
-    static <T extends SettingsInfo> boolean skipSign(@NotNull T info, PsiElement psiElement) {
+    public static <T extends SettingsInfo> boolean skipSign(@NotNull T info, PsiElement psiElement) {
         @Nullable String text = psiName(info, psiElement);
         if (text == null) {
-            return true;
+            return false;
         }
         return DocSkip.skipSign(info, text);
     }