diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlLine.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlLine.java
index 07bce3ef75..5ecd86d548 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlLine.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlLine.java
@@ -66,7 +66,7 @@ public static String unescape(String value) {
     public String getValue() {
         if (value.equals("null"))
             return null;
-        String res = YamlStringEscapeUtils.unescapeString(value);
+        String res = unescape(value);
         // remove quotation marks
         res = res.replaceAll("^\"|\"$", "");
         res = res.replaceAll("^'|'$", "");
@@ -74,7 +74,7 @@ public String getValue() {
     }
 
     public String getKey() {
-        String res = YamlStringEscapeUtils.unescapeString(key);
+        String res = unescape(key);
         // remove quotation marks
         res = res.replaceAll("^\"|\"$", "");
         res = res.replaceAll("^'|'$", "");
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlReader.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlReader.java
index 2222dff412..be7d2cefca 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlReader.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlReader.java
@@ -16,10 +16,6 @@ public YamlReader(InputStream in) {
         read(in);
     }
 
-    public int getLineNo() {
-        return mCurrent + 1;
-    }
-
     public void pushLine() {
         if (mCurrent > 0)
             mCurrent--;
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlWriter.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlWriter.java
index bb6629b28e..7cc921641a 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlWriter.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/YamlWriter.java
@@ -20,10 +20,6 @@ public void close() throws IOException {
         mWriter.close();
     }
 
-    public int getIndent() {
-        return mIndent;
-    }
-
     public String getIndentString() {
         // for java 11
         // return " ".repeat(mIndent);
@@ -48,11 +44,6 @@ public void writeIndent() {
         mWriter.print(getIndentString());
     }
 
-    public void writeInt(String key, int value) {
-        writeIndent();
-        mWriter.println(escape(key) + ": " + value);
-    }
-
     public void writeBool(String key, boolean value) {
         writeIndent();
         String val = value ? "true": "false";
@@ -85,19 +76,6 @@ public <T> void writeList(String key, List<T> list) {
         }
     }
 
-    public <K, V> void writeCommonMap(String key, Map<K, V> map) {
-        if (Objects.isNull(map))
-            return;
-        writeIndent();
-        mWriter.println(escape(key) + ":");
-        nextIndent();
-        for (K mapKey: map.keySet()) {
-            writeIndent();
-            mWriter.println(mapKey + ": " +  map.get(mapKey));
-        }
-        prevIndent();
-    }
-
     public void writeStringMap(String key, Map<String, String> map) {
         if (Objects.isNull(map))
             return;