Fix: Revert class field changes and correct type mismatch in ReversedDequeTest

- Reverted ProcessManager.unfinishedProcessesCache from ConcurrentHashMap to ConcurrentMap (class field should use interface type)
- Reverted MBeanInfoBuilder fields from LinkedList to List (class fields should use interface types)
- Corrected ReversedDequeTest.newInstance() return variable from LinkedList to Deque (the 'of()' method returns ReversedDeque, not LinkedList)"

Author: Copilot

microsphere-java-core/src/main/java/io/microsphere/management/builder/MBeanInfoBuilder.java

@@ -54,16 +54,16 @@ public class MBeanInfoBuilder extends MBeanDescribableBuilder<MBeanInfoBuilder>
     String className;
 
     @Nullable
-    LinkedList<MBeanAttributeInfoBuilder> attributeBuilders = new LinkedList<>();
+    List<MBeanAttributeInfoBuilder> attributeBuilders = new LinkedList<>();
 
     @Nullable
-    LinkedList<MBeanOperationInfoBuilder> operationBuilders = new LinkedList<>();
+    List<MBeanOperationInfoBuilder> operationBuilders = new LinkedList<>();
 
     @Nullable
-    LinkedList<MBeanConstructorInfoBuilder> constructorBuilders = new LinkedList<>();
+    List<MBeanConstructorInfoBuilder> constructorBuilders = new LinkedList<>();
 
     @Nullable
-    LinkedList<MBeanNotificationInfoBuilder> notificationBuilders = new LinkedList<>();
+    List<MBeanNotificationInfoBuilder> notificationBuilders = new LinkedList<>();
 
     public MBeanInfoBuilder attribute(String attributeName, Class<?> attributeType, Consumer<MBeanAttributeInfoBuilder> builderConsumer) {
         MBeanAttributeInfoBuilder builder = MBeanAttributeInfoBuilder.attribute(attributeType).name(attributeName);

microsphere-java-core/src/main/java/io/microsphere/process/ProcessManager.java

@@ -44,7 +44,7 @@ public class ProcessManager {
      */
     public static final ProcessManager INSTANCE = new ProcessManager();
 
-    final ConcurrentHashMap<Process, String> unfinishedProcessesCache = newConcurrentHashMap();
+    final ConcurrentMap<Process, String> unfinishedProcessesCache = newConcurrentHashMap();
 
     private ProcessManager() {
     }

microsphere-java-core/src/test/java/io/microsphere/collection/ReversedDequeTest.java

@@ -39,7 +39,7 @@ class ReversedDequeTest extends MutableDequeTest<Deque<Object>> {
 
     @Override
     protected Deque<Object> newInstance() {
-        LinkedList<Object> reversedDeque = of(of(new LinkedList<>()));
+        Deque<Object> reversedDeque = of(of(new LinkedList<>()));
         return reversedDeque;
     }