HBASE-26638 Cherry-pick the ReflectionUtils improvements in HBASE-21515 to branch-2 (#3993)

Signed-off-by: Yulin Niu <niuyulin@apache.org>

Author: Apache9

hbase-common/src/main/java/org/apache/hadoop/hbase/util/ReflectionUtils.java

@@ -83,15 +83,19 @@ public static <T> Constructor<T> findConstructor(Class<T> type, Object... paramT
 
       boolean match = true;
       for (int i = 0; i < ctorParamTypes.length && match; ++i) {
-        Class<?> paramType = paramTypes[i].getClass();
-        match = (!ctorParamTypes[i].isPrimitive()) ? ctorParamTypes[i].isAssignableFrom(paramType) :
-                  ((int.class.equals(ctorParamTypes[i]) && Integer.class.equals(paramType)) ||
-                   (long.class.equals(ctorParamTypes[i]) && Long.class.equals(paramType)) ||
-                   (double.class.equals(ctorParamTypes[i]) && Double.class.equals(paramType)) ||
-                   (char.class.equals(ctorParamTypes[i]) && Character.class.equals(paramType)) ||
-                   (short.class.equals(ctorParamTypes[i]) && Short.class.equals(paramType)) ||
-                   (boolean.class.equals(ctorParamTypes[i]) && Boolean.class.equals(paramType)) ||
-                   (byte.class.equals(ctorParamTypes[i]) && Byte.class.equals(paramType)));
+        if (paramTypes[i] == null) {
+          match = !ctorParamTypes[i].isPrimitive();
+        } else {
+          Class<?> paramType = paramTypes[i].getClass();
+          match = (!ctorParamTypes[i].isPrimitive()) ? ctorParamTypes[i].isAssignableFrom(paramType)
+            : ((int.class.equals(ctorParamTypes[i]) && Integer.class.equals(paramType)) ||
+              (long.class.equals(ctorParamTypes[i]) && Long.class.equals(paramType)) ||
+              (double.class.equals(ctorParamTypes[i]) && Double.class.equals(paramType)) ||
+              (char.class.equals(ctorParamTypes[i]) && Character.class.equals(paramType)) ||
+              (short.class.equals(ctorParamTypes[i]) && Short.class.equals(paramType)) ||
+              (boolean.class.equals(ctorParamTypes[i]) && Boolean.class.equals(paramType)) ||
+              (byte.class.equals(ctorParamTypes[i]) && Byte.class.equals(paramType)));
+        }
       }
 
       if (match) {