dev comment logic for check max users

src/main/java/ru/soune/nocopy/exception/DuplicateMethodException.java

@@ -0,0 +1,7 @@
+package ru.soune.nocopy.exception;
+
+public class DuplicateMethodException extends RuntimeException {
+    public DuplicateMethodException(String message) {
+        super(message);
+    }
+}

src/main/java/ru/soune/nocopy/exception/InsufficientFundsException.java

@@ -0,0 +1,7 @@
+package ru.soune.nocopy.exception;
+
+public class InsufficientFundsException extends RuntimeException {
+    public InsufficientFundsException(String message) {
+        super(message);
+    }
+}

src/main/java/ru/soune/nocopy/exception/InvalidPayoutMethodException.java

@@ -0,0 +1,7 @@
+package ru.soune.nocopy.exception;
+
+public class InvalidPayoutMethodException extends RuntimeException {
+    public InvalidPayoutMethodException(String message) {
+        super(message);
+    }
+}

src/main/java/ru/soune/nocopy/exception/PendingPayoutExistsException.java

@@ -0,0 +1,7 @@
+package ru.soune.nocopy.exception;
+
+public class PendingPayoutExistsException extends RuntimeException {
+    public PendingPayoutExistsException(String message) {
+        super(message);
+    }
+}