Upgrade to Spring Boot 3.2.0-RC2 (#4850)

#### What type of PR is this?

/kind cleanup
/area core
/milestone 2.11.x

#### What this PR does / why we need it:

- Upgrade to Spring Boot 3.2.0-RC2.
- Fix unit test errors due to upgrading.

See https://github.com/spring-projects/spring-boot/releases/tag/v3.2.0-RC2 for more.

#### Does this PR introduce a user-facing change?

Anyone who is using H2 database and wants to upgrade this version has to backup and restore Halo or upgrade old h2 database file manually.

```release-note
[Action Required] 升级 Spring Boot 至 3.2.0-RC2
```

application/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id 'org.springframework.boot' version '3.1.5'
+    id 'org.springframework.boot' version '3.2.0-RC2'
     id 'io.spring.dependency-management' version '1.1.0'
     id "com.gorylenko.gradle-git-properties" version "2.3.2"
     id "checkstyle"

application/src/main/java/run/halo/app/content/comment/ReplyService.java

@@ -31,7 +31,7 @@ public interface ReplyService {
             reply -> reply.getMetadata().getCreationTimestamp();
         // ascending order by creation time
         // asc nulls high will be placed at the end
-        return Comparator.comparing(creationTime, Comparators.nullsHigh())
+        return Comparator.comparing(creationTime, Comparators.nullsLow())
             .thenComparing(metadataCreationTime)
             .thenComparing(reply -> reply.getMetadata().getName());
     }

application/src/main/java/run/halo/app/theme/finders/impl/CommentPublicQueryServiceImpl.java

@@ -1,7 +1,10 @@
 package run.halo.app.theme.finders.impl;
 
 
+import static org.apache.commons.lang3.ObjectUtils.defaultIfNull;
+
 import java.security.Principal;
+import java.time.Instant;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Objects;
@@ -9,7 +12,6 @@ import java.util.function.Function;
 import java.util.function.Predicate;
 import lombok.RequiredArgsConstructor;
 import org.apache.commons.lang3.BooleanUtils;
-import org.apache.commons.lang3.ObjectUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.lang.Nullable;
 import org.springframework.security.core.context.ReactiveSecurityContextHolder;
@@ -254,35 +256,41 @@ public class CommentPublicQueryServiceImpl implements CommentPublicQueryService
         public int compare(Comment c1, Comment c2) {
             boolean c1Top = BooleanUtils.isTrue(c1.getSpec().getTop());
             boolean c2Top = BooleanUtils.isTrue(c2.getSpec().getTop());
-            if (c1Top == c2Top) {
-                int c1Priority = ObjectUtils.defaultIfNull(c1.getSpec().getPriority(), 0);
-                int c2Priority = ObjectUtils.defaultIfNull(c2.getSpec().getPriority(), 0);
-                if (c1Top) {
-                    // 都置顶
-                    return Integer.compare(c1Priority, c2Priority);
+
+            // c1 top = true && c2 top = false
+            if (c1Top && !c2Top) {
+                return -1;
             }
 
-                // 两个评论不置顶根据 creationTime 降序排列
-                return Comparator.comparing(
-                        (Comment comment) -> comment.getSpec().getCreationTime(),
-                        Comparators.nullsLow())
-                    .thenComparing((Comment comment) -> comment.getMetadata().getName())
-                    .compare(c2, c1);
-            } else if (c1Top) {
-                // 只有 c1 置顶，c1 排前面
-                return -1;
-            } else {
-                // 只有c2置顶, c2排在前面
+            // c1 top = false && c2 top = true
+            if (!c1Top && c2Top) {
                 return 1;
             }
+            // c1 top = c2 top = true || c1 top = c2 top = false
+            var priorityComparator = Comparator.<Comment, Integer>comparing(
+                comment -> defaultIfNull(comment.getSpec().getPriority(), 0));
+
+            var creationTimeComparator = Comparator.<Comment, Instant>comparing(
+                comment -> comment.getSpec().getCreationTime(),
+                Comparators.nullsLow(Comparator.<Instant>reverseOrder()));
+
+            var nameComparator = Comparator.<Comment, String>comparing(
+                comment -> comment.getMetadata().getName());
+
+            if (c1Top) {
+                return priorityComparator.thenComparing(creationTimeComparator)
+                    .thenComparing(nameComparator)
+                    .compare(c1, c2);
+            }
+            return creationTimeComparator.thenComparing(nameComparator).compare(c1, c2);
         }
     }
 
     int pageNullSafe(Integer page) {
-        return ObjectUtils.defaultIfNull(page, 1);
+        return defaultIfNull(page, 1);
     }
 
     int sizeNullSafe(Integer size) {
-        return ObjectUtils.defaultIfNull(size, DEFAULT_SIZE);
+        return defaultIfNull(size, DEFAULT_SIZE);
     }
 }

application/src/test/java/run/halo/app/theme/finders/impl/CommentPublicQueryServiceImplTest.java

@@ -164,7 +164,7 @@ class CommentPublicQueryServiceImplTest {
                 .map(Comment::getMetadata)
                 .map(MetadataOperator::getName)
                 .collect(Collectors.joining(", "));
-            assertThat(result).isEqualTo("1, 2, 3, 4, 5, 6, 9, 14, 10, 8, 7, 13, 12, 11");
+            assertThat(result).isEqualTo("1, 2, 4, 3, 5, 6, 10, 14, 9, 8, 7, 11, 12, 13");
         }
 
         @Test

platform/application/build.gradle

@@ -1,7 +1,7 @@
 import org.springframework.boot.gradle.plugin.SpringBootPlugin
 
 plugins {
-    id 'org.springframework.boot' version '3.1.5' apply false
+    id 'org.springframework.boot' version '3.2.0-RC2' apply false
     id 'java-platform'
     id 'halo.publish'
     id 'signing'