Order modifiers to align with JLS

This commit also applies Checkstyle ModifierOrder to enforce it.

See gh-31368

spring-core/src/main/java/org/springframework/cglib/core/DefaultNamingPolicy.java

@@ -32,7 +32,7 @@ public class DefaultNamingPolicy implements NamingPolicy {
     /**
      * This allows to test collisions of {@code key.hashCode()}.
      */
-    private final static boolean STRESS_HASH_CODE = Boolean.getBoolean("org.springframework.cglib.test.stressHashCodes");
+    private static final boolean STRESS_HASH_CODE = Boolean.getBoolean("org.springframework.cglib.test.stressHashCodes");
 
     @Override
     public String getClassName(String prefix, String source, Object key, Predicate names) {

spring-core/src/main/java/org/springframework/cglib/core/KeyFactory.java

@@ -82,7 +82,7 @@ abstract public class KeyFactory {
 			TypeUtils.parseSignature("int getSort()");
 
 	//generated numbers:
-	private final static int PRIMES[] = {
+	private static final int PRIMES[] = {
 			11, 73, 179, 331,
 			521, 787, 1213, 1823,
 			2609, 3691, 5189, 7247,

spring-core/src/main/java/org/springframework/core/Constants.java

@@ -32,7 +32,7 @@ import org.springframework.util.ReflectionUtils;
  * in public static final members. The {@code asXXXX} methods of this class
  * allow these constant values to be accessed via their string names.
  *
- * <p>Consider class Foo containing {@code public final static int CONSTANT1 = 66;}
+ * <p>Consider class Foo containing {@code public static final int CONSTANT1 = 66;}
  * An instance of this class wrapping {@code Foo.class} will return the constant value
  * of 66 from its {@code asNumber} method given the argument {@code "CONSTANT1"}.
  *

spring-core/src/main/java/org/springframework/core/io/buffer/DataBufferUtils.java

@@ -64,7 +64,7 @@ import org.springframework.util.Assert;
  */
 public abstract class DataBufferUtils {
 
-	private final static Log logger = LogFactory.getLog(DataBufferUtils.class);
+	private static final Log logger = LogFactory.getLog(DataBufferUtils.class);
 
 	private static final Consumer<DataBuffer> RELEASE_CONSUMER = DataBufferUtils::release;
 
@@ -868,7 +868,7 @@ public abstract class DataBufferUtils {
 	/**
 	 * Base class for a {@link NestedMatcher}.
 	 */
-	private static abstract class AbstractNestedMatcher implements NestedMatcher {
+	private abstract static class AbstractNestedMatcher implements NestedMatcher {
 
 		private final byte[] delimiter;
 

spring-core/src/main/java/org/springframework/core/log/LogMessage.java

@@ -163,7 +163,7 @@ public abstract class LogMessage implements CharSequence {
 	}
 
 
-	private static abstract class FormatMessage extends LogMessage {
+	private abstract static class FormatMessage extends LogMessage {
 
 		protected final String format;