8164520: java/lang/ProcessHandle/Basic.java is missing @library tag

Reviewed-by: coleenp
diff --git a/jdk/test/java/lang/ProcessHandle/Basic.java b/jdk/test/java/lang/ProcessHandle/Basic.java
index 72dbe85..c34bcab 100644
--- a/jdk/test/java/lang/ProcessHandle/Basic.java
+++ b/jdk/test/java/lang/ProcessHandle/Basic.java
@@ -36,6 +36,7 @@
 
 /*
  * @test
+ * @library /test/lib
  * @modules java.base/jdk.internal.misc
  *          jdk.management
  * @run testng Basic