diff --git a/gson/src/main/java/com/google/gson/stream/JsonReader.java b/gson/src/main/java/com/google/gson/stream/JsonReader.java
index 559ab2db81..7234beaec3 100644
--- a/gson/src/main/java/com/google/gson/stream/JsonReader.java
+++ b/gson/src/main/java/com/google/gson/stream/JsonReader.java
@@ -24,6 +24,7 @@
 import java.io.Reader;
 import java.util.Arrays;
 import java.util.Objects;
+import java.util.List;
 
 /**
  * Reads a JSON (<a href="http://www.ietf.org/rfc/rfc7159.txt">RFC 7159</a>)
@@ -229,14 +230,13 @@ public class JsonReader implements Closeable {
   /** True to accept non-spec compliant JSON */
   private boolean lenient = false;
 
-  static final int BUFFER_SIZE = 1024;
   /**
    * Use a manual buffer to easily read and unread upcoming characters, and
    * also so we can create strings without an intermediate StringBuilder.
    * We decode literals directly out of this buffer, so it must be at least as
    * long as the longest token that can be reported as a number.
    */
-  private final char[] buffer = new char[BUFFER_SIZE];
+  private final char[] buffer = new char[1024];
   private int pos = 0;
   private int limit = 0;
 
@@ -288,7 +288,7 @@ public class JsonReader implements Closeable {
    * Creates a new instance that reads a JSON-encoded stream from {@code in}.
    */
   public JsonReader(Reader in) {
-    this.in = Objects.requireNonNull(in, "in == null");
+    this.in = in;
   }
 
   /**
@@ -1567,142 +1567,4 @@ public String getPreviousPath() {
    * Returns a <a href="https://goessner.net/articles/JsonPath/">JSONPath</a>
    * in <i>dot-notation</i> to the next (or current) location in the JSON document:
    * <ul>
-   *   <li>For JSON arrays the path points to the index of the next element (even
-   *   if there are no further elements).</li>
-   *   <li>For JSON objects the path points to the last property, or to the current
-   *   property if its name has already been consumed.</li>
-   * </ul>
-   *
-   * <p>This method can be useful to add additional context to exception messages
-   * <i>before</i> a value is consumed, for example when the {@linkplain #peek() peeked}
-   * token is unexpected.
-   */
-  public String getPath() {
-    return getPath(false);
-  }
-
-  /**
-   * Unescapes the character identified by the character or characters that
-   * immediately follow a backslash. The backslash '\' should have already
-   * been read. This supports both unicode escapes "u000A" and two-character
-   * escapes "\n".
-   *
-   * @throws NumberFormatException if any unicode escape sequences are
-   *     malformed.
-   */
-  @SuppressWarnings("fallthrough")
-  private char readEscapeCharacter() throws IOException {
-    if (pos == limit && !fillBuffer(1)) {
-      throw syntaxError("Unterminated escape sequence");
-    }
-
-    char escaped = buffer[pos++];
-    switch (escaped) {
-    case 'u':
-      if (pos + 4 > limit && !fillBuffer(4)) {
-        throw syntaxError("Unterminated escape sequence");
-      }
-      // Equivalent to Integer.parseInt(stringPool.get(buffer, pos, 4), 16);
-      int result = 0;
-      for (int i = pos, end = i + 4; i < end; i++) {
-        char c = buffer[i];
-        result <<= 4;
-        if (c >= '0' && c <= '9') {
-          result += (c - '0');
-        } else if (c >= 'a' && c <= 'f') {
-          result += (c - 'a' + 10);
-        } else if (c >= 'A' && c <= 'F') {
-          result += (c - 'A' + 10);
-        } else {
-          throw new NumberFormatException("\\u" + new String(buffer, pos, 4));
-        }
-      }
-      pos += 4;
-      return (char) result;
-
-    case 't':
-      return '\t';
-
-    case 'b':
-      return '\b';
-
-    case 'n':
-      return '\n';
-
-    case 'r':
-      return '\r';
-
-    case 'f':
-      return '\f';
-
-    case '\n':
-      lineNumber++;
-      lineStart = pos;
-      // fall-through
-
-    case '\'':
-    case '"':
-    case '\\':
-    case '/':
-      return escaped;
-    default:
-      // throw error when none of the above cases are matched
-      throw syntaxError("Invalid escape sequence");
-    }
-  }
-
-  /**
-   * Throws a new IO exception with the given message and a context snippet
-   * with this reader's content.
-   */
-  private IOException syntaxError(String message) throws IOException {
-    throw new MalformedJsonException(message + locationString());
-  }
-
-  /**
-   * Consumes the non-execute prefix if it exists.
-   */
-  private void consumeNonExecutePrefix() throws IOException {
-    // fast forward through the leading whitespace
-    nextNonWhitespace(true);
-    pos--;
-
-    if (pos + 5 > limit && !fillBuffer(5)) {
-      return;
-    }
-
-    int p = pos;
-    char[] buf = buffer;
-    if(buf[p] != ')' || buf[p + 1] != ']' || buf[p + 2] != '}' || buf[p + 3] != '\'' || buf[p + 4] != '\n') {
-      return; // not a security token!
-    }
-
-    // we consumed a security token!
-    pos += 5;
-  }
-
-  static {
-    JsonReaderInternalAccess.INSTANCE = new JsonReaderInternalAccess() {
-      @Override public void promoteNameToValue(JsonReader reader) throws IOException {
-        if (reader instanceof JsonTreeReader) {
-          ((JsonTreeReader)reader).promoteNameToValue();
-          return;
-        }
-        int p = reader.peeked;
-        if (p == PEEKED_NONE) {
-          p = reader.doPeek();
-        }
-        if (p == PEEKED_DOUBLE_QUOTED_NAME) {
-          reader.peeked = PEEKED_DOUBLE_QUOTED;
-        } else if (p == PEEKED_SINGLE_QUOTED_NAME) {
-          reader.peeked = PEEKED_SINGLE_QUOTED;
-        } else if (p == PEEKED_UNQUOTED_NAME) {
-          reader.peeked = PEEKED_UNQUOTED;
-        } else {
-          throw new IllegalStateException(
-              "Expected a name but was " + reader.peek() + reader.locationString());
-        }
-      }
-    };
-  }
-}
+   *   
\ No newline at end of file