[124920] Create a tool that generates a report of adopters' usage of WTP code

archive/releng.builder/tools/apitools/org.eclipse.wtp.releng.tools.component.core/src/org/eclipse/wtp/releng/tools/component/adopters/APIRefCompatibilityScanner.java

@@ -120,54 +120,57 @@ public class APIRefCompatibilityScanner implements IPlatformRunnable
               PluginRef pluginRef = (PluginRef)it.next();
               String pluginId = pluginRef.getId();
               ILocation loc = (ILocation)pluginId2APIInfo.get(pluginId);
-              ComponentAPI compAPI = new ComponentAPI();
-              compAPI.setLocation(loc);
-              compAPI.load();
-              for (Iterator it2 = pluginRef.getClassRefs().iterator(); it2.hasNext();)
+              if (loc != null)
               {
-                ClassRef classRef = (ClassRef)it2.next();
-                String className = classRef.getName();
-                if (className.endsWith("[]"))
-                  className = className.substring(0, className.length() - 2);
-                int i = className.lastIndexOf('.');
-                String pkgName = (i != -1) ? className.substring(0, i) : "";
-                String localName = (i != -1) ? className.substring(i + 1) : className;
-                PackageAPI pkgAPI = compAPI.getPackageAPI(pkgName);
-                if (pkgAPI != null)
+                ComponentAPI compAPI = new ComponentAPI();
+                compAPI.setLocation(loc);
+                compAPI.load();
+                for (Iterator it2 = pluginRef.getClassRefs().iterator(); it2.hasNext();)
                 {
-                  ClassAPI classAPI = pkgAPI.getClassAPI(localName);
-                  if (classAPI != null)
+                  ClassRef classRef = (ClassRef)it2.next();
+                  String className = classRef.getName();
+                  if (className.endsWith("[]"))
+                    className = className.substring(0, className.length() - 2);
+                  int i = className.lastIndexOf('.');
+                  String pkgName = (i != -1) ? className.substring(0, i) : "";
+                  String localName = (i != -1) ? className.substring(i + 1) : className;
+                  PackageAPI pkgAPI = compAPI.getPackageAPI(pkgName);
+                  if (pkgAPI != null)
                   {
-                    for (Iterator it3 = classRef.getMethodRefs().iterator(); it3.hasNext();)
+                    ClassAPI classAPI = pkgAPI.getClassAPI(localName);
+                    if (classAPI != null)
                     {
-                      MethodRef methodRef = (MethodRef)it3.next();
-                      String name = methodRef.getName();
-                      String desc = methodRef.getDescriptor();
-                      if (hasMethod(classAPI, name, desc))
+                      for (Iterator it3 = classRef.getMethodRefs().iterator(); it3.hasNext();)
                       {
-                        classRef.removeMethodRef(name, desc);
+                        MethodRef methodRef = (MethodRef)it3.next();
+                        String name = methodRef.getName();
+                        String desc = methodRef.getDescriptor();
+                        if (hasMethod(classAPI, name, desc))
+                        {
+                          classRef.removeMethodRef(name, desc);
+                        }
                       }
-                    }
-                    for (Iterator it3 = classRef.getFieldRefs().iterator(); it3.hasNext();)
-                    {
-                      FieldRef fieldRef = (FieldRef)it3.next();
-                      String name = fieldRef.getName();
-                      String desc = fieldRef.getDescriptor();
-                      if (hasField(classAPI, name))
+                      for (Iterator it3 = classRef.getFieldRefs().iterator(); it3.hasNext();)
                       {
-                        classRef.removeFieldRef(name, desc);
+                        FieldRef fieldRef = (FieldRef)it3.next();
+                        String name = fieldRef.getName();
+                        String desc = fieldRef.getDescriptor();
+                        if (hasField(classAPI, name))
+                        {
+                          classRef.removeFieldRef(name, desc);
+                        }
+                      }
+                      if (classRef.getMethodRefs().isEmpty() && classRef.getFieldRefs().isEmpty())
+                      {
+                        pluginRef.removeClassRef(classRef.getName());
                       }
-                    }
-                    if (classRef.getMethodRefs().isEmpty() && classRef.getFieldRefs().isEmpty())
-                    {
-                      pluginRef.removeClassRef(classRef.getName());
                     }
                   }
                 }
-              }
-              if (pluginRef.getClassRefs().isEmpty())
-              {
-                refs.removePluginRef(pluginId);
+                if (pluginRef.getClassRefs().isEmpty())
+                {
+                  refs.removePluginRef(pluginId);
+                }
               }
             }
             if (!refs.getPluginRefs().isEmpty())