#29270 Rollback to CustomGraphQLException as Base Class

**Reason for Rollback**:
- The change to use `GraphQLErrorException` as the base class for `PermissionDeniedGraphQLException` caused a violation of the SonarQube rule "Inheritance tree of classes should not be too deep."
- The inheritance tree depth exceeded the allowed limit, leading to maintainability issues flagged by SonarQube.

dotCMS/src/main/java/com/dotcms/graphql/exception/CustomGraphQLException.java

@@ -0,0 +1,75 @@
+package com.dotcms.graphql.exception;
+
+import graphql.ErrorType;
+import graphql.GraphQLError;
+import graphql.GraphQLException;
+import graphql.language.SourceLocation;
+import java.util.Collections;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Custom exception class for GraphQL errors.
+ * <p>
+ * This class extends {@link GraphQLException} and implements {@link GraphQLError},
+ * allowing for customized error handling in GraphQL applications.
+ * </p>
+ * <p>
+ * By implementing {@link GraphQLError}, this exception can provide additional
+ * context or metadata about the error, such as locations, extensions, and error types.
+ * </p>
+ */
+public class CustomGraphQLException extends RuntimeException implements GraphQLError {
+
+    /**
+     * Constructs a new CustomGraphQLException with the specified detail message.
+     *
+     * @param message the detail message explaining the reason for the exception.
+     */
+    public CustomGraphQLException(String message) {
+        super(message);
+    }
+
+    /**
+     * Provides additional metadata about the error.
+     * <p>
+     * This implementation returns an empty map, but subclasses can override this
+     * method to include custom extensions that provide more information about the error.
+     * </p>
+     *
+     * @return an empty map by default, which can be overridden by subclasses.
+     */
+    @Override
+    public Map<String, Object> getExtensions() {
+        return Collections.emptyMap();
+    }
+
+    /**
+     * Returns the list of source locations related to the error.
+     * <p>
+     * This implementation returns an empty list, but subclasses can override this
+     * method to include the specific locations in the GraphQL query where the error occurred.
+     * </p>
+     *
+     * @return an empty list by default, which can be overridden by subclasses.
+     */
+    @Override
+    public List<SourceLocation> getLocations() {
+        return Collections.emptyList();
+    }
+
+    /**
+     * Returns the type of the error.
+     * <p>
+     * This implementation returns {@code null}, but subclasses can override this
+     * method to provide a specific {@link ErrorType} for the error.
+     * </p>
+     *
+     * @return {@code null} by default, which can be overridden by subclasses.
+     */
+    @Override
+    public ErrorType getErrorType() {
+        return null;
+    }
+}

dotCMS/src/main/java/com/dotcms/graphql/exception/PermissionDeniedGraphQLException.java

@@ -1,17 +1,27 @@
 package com.dotcms.graphql.exception;
 
-import graphql.GraphqlErrorException;
+/**
+ * Custom exception for permission denial in GraphQL operations.
+ * This exception is used to indicate that a user does not have the necessary permissions
+ * to access a specific resource.
+ */
+public class PermissionDeniedGraphQLException extends CustomGraphQLException {
 
-public class PermissionDeniedGraphQLException extends GraphqlErrorException {
+    private static final String DEFAULT_MESSAGE = "Permission denied: You do not have permission to access this resource.";
 
+    /**
+     * Constructs a new PermissionDeniedGraphQLException with a specific message.
+     *
+     * @param message The detail message to be used.
+     */
     public PermissionDeniedGraphQLException(String message) {
-        super(new Builder().message(message));
+        super(message);
     }
 
+    /**
+     * Constructs a new PermissionDeniedGraphQLException with a default message.
+     */
     public PermissionDeniedGraphQLException() {
-        super(new Builder().message("Permission denied: You do not have permission to access this resource."));
+        this(DEFAULT_MESSAGE);
     }
-
 }
-
-