Fix watch pattern support for Groovy classes. Fixes #9848

Author: graemerocher

grails-core/src/main/groovy/grails/plugins/GrailsPluginManager.java

@@ -224,6 +224,7 @@ public interface GrailsPluginManager extends ApplicationContextAware {
      * @return true if the plugin supports the current build scope
      * @see grails.util.BuildScope#getCurrent()
      */
+    @Deprecated
     boolean supportsCurrentBuildScope(String pluginName);
 
     /**

grails-core/src/main/groovy/org/grails/plugins/AbstractGrailsPluginManager.java

@@ -44,6 +44,7 @@
 import grails.core.GrailsApplication;
 
 import org.grails.core.legacy.LegacyGrailsApplication;
+import org.grails.plugins.support.WatchPattern;
 import org.grails.spring.RuntimeSpringConfiguration;
 import org.grails.io.support.GrailsResourceUtils;
 
@@ -87,7 +88,7 @@ public abstract class AbstractGrailsPluginManager implements GrailsPluginManager
     protected ApplicationContext applicationContext;
     protected Map<String, GrailsPlugin> failedPlugins = new HashMap<String, GrailsPlugin>();
     protected boolean loadCorePlugins = true;
-    
+
     private static final String CONFIG_BINDING_USER_HOME = "userHome";
     private static final String CONFIG_BINDING_GRAILS_HOME = "grailsHome";
     private static final String CONFIG_BINDING_APP_NAME = "appName";
@@ -356,6 +357,7 @@ public void setPluginFilter(PluginFilter pluginFilter) {
         // no-op
     }
 
+    @Deprecated
     public boolean supportsCurrentBuildScope(String pluginName) {
         GrailsPlugin plugin = getGrailsPlugin(pluginName);
         return plugin == null || plugin.supportsScope(BuildScope.getCurrent());
@@ -385,6 +387,33 @@ public void informOfClassChange(Class<?> aClass) {
             if(!plugin.isEnabled(applicationContext.getEnvironment().getActiveProfiles())) return;
             plugin.notifyOfEvent(GrailsPlugin.EVENT_ON_CHANGE, aClass);
         }
+        else {
+            String classNameAsPath = aClass.getName().replace('.', File.separatorChar);
+            String groovyClass = classNameAsPath + ".groovy";
+            String javaClass = classNameAsPath + ".java";
+            for (GrailsPlugin grailsPlugin : pluginList) {
+                List<WatchPattern> watchPatterns = grailsPlugin.getWatchedResourcePatterns();
+                if(watchPatterns != null) {
+                    for (WatchPattern watchPattern : watchPatterns) {
+                        File parent = watchPattern.getDirectory();
+                        String extension = watchPattern.getExtension();
+
+                        if(parent != null && extension != null)  {
+                            File f = new File(parent, groovyClass);
+                            if(f.exists() && f.getName().endsWith(extension)) {
+                                grailsPlugin.notifyOfEvent(GrailsPlugin.EVENT_ON_CHANGE, aClass);
+                            }
+                            else {
+                                f = new File(parent, javaClass);
+                                if(f.exists() && f.getName().endsWith(extension)) {
+                                    grailsPlugin.notifyOfEvent(GrailsPlugin.EVENT_ON_CHANGE, aClass);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
     }
 
     public String getPluginPath(String name) {

grails-core/src/main/groovy/org/grails/plugins/support/WatchPattern.groovy

@@ -16,12 +16,14 @@
 package org.grails.plugins.support
 
 import groovy.transform.CompileStatic
+import groovy.transform.ToString
 
 /**
  * @author Graeme Rocher
  * @since 2.0
  */
 @CompileStatic
+@ToString
 class WatchPattern {
 
     /**