Fix qldoc

Author: Benjamin Muskalla

java/ql/src/Telemetry/ExternalAPI.qll

@@ -15,7 +15,7 @@ private import semmle.code.java.dataflow.TaintTracking
 class ExternalAPI extends Callable {
   ExternalAPI() { not this.fromSource() }
 
-  /** Holds if this API is a candidate worth supporting */
+  /** Holds if this API is not worth supporting */
   predicate isUninteresting() { isTestLibrary() or isParameterlessConstructor() }
 
   /** Holds if this API is is a constructor without parameters */

java/ql/src/Telemetry/ExternalLibraryUsage.ql

@@ -13,7 +13,7 @@ from int usages, string jarname
 where
   usages =
     strictcount(Call c, ExternalAPI a |
-      c.getCallee() = a and
+      c.getCallee().getSourceDeclaration() = a and
       not c.getFile() instanceof GeneratedFile and
       a.jarContainer() = jarname and
       not a.isUninteresting()