diff --git a/compiler/base/utils/src/main/java/org/onosproject/yang/compiler/utils/io/impl/CopyrightHeader.java b/compiler/base/utils/src/main/java/org/onosproject/yang/compiler/utils/io/impl/CopyrightHeader.java
index 5cc4bbb..4d4864a 100644
--- a/compiler/base/utils/src/main/java/org/onosproject/yang/compiler/utils/io/impl/CopyrightHeader.java
+++ b/compiler/base/utils/src/main/java/org/onosproject/yang/compiler/utils/io/impl/CopyrightHeader.java
@@ -16,16 +16,7 @@
 
 package org.onosproject.yang.compiler.utils.io.impl;
 
-import org.onosproject.yang.compiler.utils.UtilConstants;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.FileReader;
 import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-
 import static java.util.Calendar.YEAR;
 import static java.util.Calendar.getInstance;
 
@@ -34,11 +25,26 @@
  */
 public final class CopyrightHeader {
 
-    private static final int EOF = -1;
-    private static final String COPYRIGHT_HEADER_FILE = "CopyrightHeader.txt";
-    private static final String COPYRIGHTS_FIRST_LINE = "/*\n * Copyright " + getInstance().get(YEAR)
-            + "-present Open Networking Foundation\n";
-    private static final String TEMP_FILE = "temp.txt";
+    /**
+     * ONF standard Apache 2.0 license header for .java files.
+     */
+    public static final String COPYRIGHT_HEADER =
+        "/*\n" +
+        " * Copyright " + getInstance().get(YEAR) + "-present Open Networking Foundation\n" +
+        " *\n" +
+        " * Licensed under the Apache License, Version 2.0 (the \"License\");\n" +
+        " * you may not use this file except in compliance with the License.\n" +
+        " * You may obtain a copy of the License at\n" +
+        " *\n" +
+        " *     http://www.apache.org/licenses/LICENSE-2.0\n" +
+        " *\n" +
+        " * Unless required by applicable law or agreed to in writing, software\n" +
+        " * distributed under the License is distributed on an \"AS IS\" BASIS,\n" +
+        " * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n" +
+        " * See the License for the specific language governing permissions and\n" +
+        " * limitations under the License.\n" +
+        " */\n" +
+        "\n";
 
     /**
      * Creates an instance of copyright header.
@@ -51,55 +57,10 @@
      *
      * @return string of file.
      * @throws IOException when fails to get the copyright header
+     * @see CopyrightHeader#COPYRIGHT_HEADER
      */
     public static String parseCopyrightHeader() throws IOException {
 
-        File temp = new File(TEMP_FILE);
-
-        try {
-            InputStream stream = CopyrightHeader.class.getClassLoader()
-                    .getResourceAsStream(COPYRIGHT_HEADER_FILE);
-            OutputStream out = new FileOutputStream(temp);
-
-            int index;
-            out.write(COPYRIGHTS_FIRST_LINE.getBytes());
-            while ((index = stream.read()) != EOF) {
-                out.write(index);
-            }
-            out.close();
-            stream.close();
-            return getStringFileContent(temp);
-        } catch (IOException e) {
-            throw new IOException("failed to parse the Copyright header");
-        } finally {
-            temp.delete();
-        }
-    }
-
-    /**
-     * Converts it to string.
-     *
-     * @param toAppend file to be converted.
-     * @return string of file.
-     * @throws IOException when fails to convert to string
-     */
-    private static String getStringFileContent(File toAppend) throws IOException {
-
-        FileReader fileReader = new FileReader(toAppend);
-        BufferedReader bufferReader = new BufferedReader(fileReader);
-        try {
-            StringBuilder stringBuilder = new StringBuilder();
-            String line = bufferReader.readLine();
-
-            while (line != null) {
-                stringBuilder.append(line);
-                stringBuilder.append(UtilConstants.NEW_LINE);
-                line = bufferReader.readLine();
-            }
-            return stringBuilder.toString();
-        } finally {
-            fileReader.close();
-            bufferReader.close();
-        }
+        return COPYRIGHT_HEADER;
     }
 }
diff --git a/compiler/base/utils/src/main/resources/CopyrightHeader.txt b/compiler/base/utils/src/main/resources/CopyrightHeader.txt
deleted file mode 100644
index 2cbed45..0000000
--- a/compiler/base/utils/src/main/resources/CopyrightHeader.txt
+++ /dev/null
@@ -1,14 +0,0 @@
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-