...

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/core/json/UTF8JsonGenerator.java

@@ -1512,7 +1512,7 @@ private final void _writeStringSegment2(final char[] cbuf, int offset, final int
                 outputBuffer[outputPtr++] = (byte) (0x80 | (ch & 0x3f));
             } else {
                 // 3- or 4-byte character
-                if (_isSurrogateChar((char) ch)) {
+                if (_isSurrogateChar(ch)) {
                     final boolean combineSurrogates = Feature.COMBINE_UNICODE_SURROGATES_IN_UTF8.enabledIn(_features);
                     if (combineSurrogates && offset < end) {
                         char highSurrogate = (char) ch;
@@ -1560,7 +1560,7 @@ private final void _writeStringSegment2(final String text, int offset, final int
                 outputBuffer[outputPtr++] = (byte) (0x80 | (ch & 0x3f));
             } else {
                 // 3- or 4-byte character
-                if (_isSurrogateChar((char) ch)) {
+                if (_isSurrogateChar(ch)) {
                     final boolean combineSurrogates = Feature.COMBINE_UNICODE_SURROGATES_IN_UTF8.enabledIn(_features);
                     if (combineSurrogates && offset < end) {
                         char highSurrogate = (char) ch;
@@ -2244,7 +2244,7 @@ private byte[] getHexBytes() {
     }
 
     // @since 2.18
-    private boolean _isSurrogateChar(char ch) {
+    private boolean _isSurrogateChar(int ch) {
         return (ch & 0xD800) == 0xD800;
     }
 }