Use Mcp\Exception\InvalidArgumentException instead of native

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: chr-hertel

src/Server/Session/SessionManager.php

@@ -11,6 +11,7 @@
 
 namespace Mcp\Server\Session;
 
+use Mcp\Exception\InvalidArgumentException;
 use Psr\Log\LoggerInterface;
 use Psr\Log\NullLogger;
 use Symfony\Component\Uid\Uuid;
@@ -33,10 +34,10 @@ public function __construct(
         private readonly int $gcDivisor = 100,
     ) {
         if ($gcProbability < 0) {
-            throw new \InvalidArgumentException('gcProbability must be greater than or equal to 0.');
+            throw new InvalidArgumentException('gcProbability must be greater than or equal to 0.');
         }
         if ($gcDivisor < 1) {
-            throw new \InvalidArgumentException('gcDivisor must be greater than or equal to 1.');
+            throw new InvalidArgumentException('gcDivisor must be greater than or equal to 1.');
         }
     }
 

tests/Unit/Server/Session/SessionManagerTest.php

@@ -11,6 +11,7 @@
 
 namespace Mcp\Tests\Unit\Server\Session;
 
+use Mcp\Exception\InvalidArgumentException;
 use Mcp\Server\Session\InMemorySessionStore;
 use Mcp\Server\Session\SessionManager;
 use PHPUnit\Framework\TestCase;
@@ -56,15 +57,15 @@ public function testGcAlwaysRunsWhenProbabilityExceedsDivisor(): void
 
     public function testGcProbabilityMustBeNonNegative(): void
     {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(InvalidArgumentException::class);
         $this->expectExceptionMessage('gcProbability must be greater than or equal to 0.');
 
         new SessionManager(new InMemorySessionStore(), gcProbability: -1);
     }
 
     public function testGcDivisorMustBePositive(): void
     {
-        $this->expectException(\InvalidArgumentException::class);
+        $this->expectException(InvalidArgumentException::class);
         $this->expectExceptionMessage('gcDivisor must be greater than or equal to 1.');
 
         new SessionManager(new InMemorySessionStore(), gcDivisor: 0);