introduced some more checkstyle rules

Author: wumpz

pom.xml

@@ -375,7 +375,7 @@
 							<logViolationsToConsole>true</logViolationsToConsole>
 							<includeTestSourceDirectory>true</includeTestSourceDirectory>
 							<sourceDirectories>
-								<sourceDirectory>src</sourceDirectory>
+								<sourceDirectory>./src/java</sourceDirectory>
 							</sourceDirectories>
 							<checkstyleRules>
 								<module name="Checker">
@@ -384,9 +384,21 @@
 										<property name="format" value="(?s:(\r\n|\r).*)"/>
 										<property name="message" value="CRLF and CR line endings are prohibited, but this file uses them."/>
 									</module>
+									<module name="TreeWalker">
+										<module name="ConstantName" />
+										<module name="EmptyStatement" />
+										<module name="NeedBraces" />
+									</module>
 								</module>
 							</checkstyleRules>
 						</configuration>
+						<dependencies>
+							<dependency>
+								<groupId>com.puppycrawl.tools</groupId>
+								<artifactId>checkstyle</artifactId>
+								<version>7.6.1</version>
+							</dependency>
+						</dependencies>
 					</plugin>
 				</plugins>
 			</build>

src/test/java/net/sf/jsqlparser/test/replace/ReplaceTest.java

@@ -18,12 +18,12 @@
 
 public class ReplaceTest {
 
-    private static final CCJSqlParserManager parserManager = new CCJSqlParserManager();
+    private static final CCJSqlParserManager PARSER_MANAGER = new CCJSqlParserManager();
 
     @Test
     public void testReplaceSyntax1() throws JSQLParserException {
         String statement = "REPLACE mytable SET col1='as', col2=?, col3=565";
-        Replace replace = (Replace) parserManager.parse(new StringReader(statement));
+        Replace replace = (Replace) PARSER_MANAGER.parse(new StringReader(statement));
         assertEquals("mytable", replace.getTable().getName());
         assertEquals(3, replace.getColumns().size());
         assertEquals("col1", ((Column) replace.getColumns().get(0)).getColumnName());
@@ -39,7 +39,7 @@ public void testReplaceSyntax1() throws JSQLParserException {
     @Test
     public void testReplaceSyntax2() throws JSQLParserException {
         String statement = "REPLACE mytable (col1, col2, col3) VALUES ('as', ?, 565)";
-        Replace replace = (Replace) parserManager.parse(new StringReader(statement));
+        Replace replace = (Replace) PARSER_MANAGER.parse(new StringReader(statement));
         assertEquals("mytable", replace.getTable().getName());
         assertEquals(3, replace.getColumns().size());
         assertEquals("col1", ((Column) replace.getColumns().get(0)).getColumnName());
@@ -56,15 +56,13 @@ public void testReplaceSyntax2() throws JSQLParserException {
     @Test
     public void testReplaceSyntax3() throws JSQLParserException {
         String statement = "REPLACE mytable (col1, col2, col3) SELECT * FROM mytable3";
-        Replace replace = (Replace) parserManager.parse(new StringReader(statement));
+        Replace replace = (Replace) PARSER_MANAGER.parse(new StringReader(statement));
         assertEquals("mytable", replace.getTable().getName());
         assertEquals(3, replace.getColumns().size());
         assertEquals("col1", ((Column) replace.getColumns().get(0)).getColumnName());
         assertEquals("col2", ((Column) replace.getColumns().get(1)).getColumnName());
         assertEquals("col3", ((Column) replace.getColumns().get(2)).getColumnName());
         assertTrue(replace.getItemsList() instanceof SubSelect);
-        // TODO:
-        // assertEquals(statement, ""+replace);
     }
 
     @Test