docs: add javadoc

hippo4j-common/src/test/java/cn/hippo4j/common/executor/support/BlockingQueueTypeEnumTest.java

@@ -25,8 +25,10 @@ import java.util.List;
 import java.util.concurrent.BlockingQueue;
 import java.util.stream.Collectors;
 
-
+/**
-class BlockingQueueTypeEnumTest {
+ * BlockingQueueTypeEnum test class
+ */
+public final class BlockingQueueTypeEnumTest {
     // get all blocking queue names
     private static final List<String> BLOCKING_QUEUE_NAMES = Arrays.stream(BlockingQueueTypeEnum.values()).map(BlockingQueueTypeEnum::getName).collect(Collectors.toList());