Fix checkstyle

Author: Stypox

src/main/java/com/grack/nanojson/JsonReader.java

@@ -37,7 +37,9 @@ public final class JsonReader implements Closeable {
 	private int stateIndex = 0;
 	private boolean inObject;
 	private boolean first = true;
+	// CHECKSTYLE_OFF: MagicNumber
 	private CharBuffer key = CharBufferPool.get(1024);
+	// CHECKSTYLE_ON: MagicNumber
 
 	/**
 	 * The type of value that the {@link JsonReader} is positioned over.

src/main/java/com/grack/nanojson/JsonTokener.java

@@ -401,7 +401,8 @@ void consumeTokenString() throws JsonParserException {
 									} else if (digit >= 'a' && digit <= 'f') {
 										escaped |= (digit - 'a') + 10;
 									} else {
-										throw createParseException(null, "Expected unicode hex escape character: "
+										throw createParseException(null,
+												"Expected unicode hex escape character: "
 												+ (char) digit + " (" + digit + ")", false);
 									}
 								}

src/main/java/com/grack/nanojson/JsonWriterBase.java

@@ -604,8 +604,8 @@ private void emitStringValue(String s) {
 								}
 								char lowSurrogate = s.charAt(i + 1);
 								if (!Character.isLowSurrogate(lowSurrogate)) {
-									throw new JsonWriterException(
-											"Invalid surrogate pair: high surrogate not followed by low surrogate");
+									throw new JsonWriterException("Invalid surrogate pair: "
+											+ "high surrogate not followed by low surrogate");
 								}
 								// Need 4 bytes for any supplementary code point in UTF-8. Flush first if
 								// insufficient space
@@ -626,7 +626,8 @@ private void emitStringValue(String s) {
 											"Unable to encode character 0x" + Integer.toHexString(fc));
 								}
 							} else if (Character.isLowSurrogate(c)) {
-								throw new JsonWriterException("Invalid low surrogate without preceding high surrogate");
+								throw new JsonWriterException(
+										"Invalid low surrogate without preceding high surrogate");
 							} else {
 								bb[bo++] = (byte) (0xe0 | c >> 12);
 								bb[bo++] = (byte) (0x80 | (c >> 6) & 0x3f);