Add static for asm dependency

diff --git a/pf4j/src/main/java/module-info.java b/pf4j/src/main/java/module-info.java
index b11792fb28627f809c5da0f155b7ad66788e3444..55b616919363da54f075cabe503aea3ef8ae71fc 100644 (file)
--- a/pf4j/src/main/java/module-info.java
+++ b/pf4j/src/main/java/module-info.java
@@ -26,8 +26,8 @@ module org.pf4j {
     // provides javax.annotation
     requires java.compiler;
 
-    // provided by the ASM library
-    requires org.objectweb.asm;
+    // provided by the ASM library, use "requires static" since it's optional
+    requires static org.objectweb.asm;
 
     // The SLF4J library currently does not provide a module.
     // Version 1.8 provides a module called "org.slf4j". But this version is