[JENKINS-43531] Plugins may not be expecting InvalidPathException

- Plugins should really be expecting it, but as historically they have not, may as well convert to IOE for them

core/src/main/java/hudson/PluginWrapper.java

@@ -30,6 +30,7 @@ import hudson.model.AdministrativeMonitor;
 import hudson.model.Api;
 import hudson.model.ModelObject;
 import java.nio.file.Files;
+import java.nio.file.InvalidPathException;
 import jenkins.YesNoMaybe;
 import jenkins.model.Jenkins;
 import hudson.model.UpdateCenter;
@@ -496,8 +497,11 @@ public class PluginWrapper implements Comparable<PluginWrapper>, ModelObject {
      */
     public void disable() throws IOException {
         // creates an empty file
-        OutputStream os = Files.newOutputStream(disableFile.toPath());
-        os.close();
+        try (OutputStream os = Files.newOutputStream(disableFile.toPath())) {
+            os.close();
+        } catch (InvalidPathException e) {
+            throw new IOException(e);
+        }
     }
 
     /**