Java: Re-arrange import pattern for generated models.

Author: michaelnebel

java/ql/lib/semmle/code/java/dataflow/ExternalFlow.qll

@@ -92,6 +92,7 @@ private module Frameworks {
   private import semmle.code.java.frameworks.apache.IO
   private import semmle.code.java.frameworks.apache.Lang
   private import semmle.code.java.frameworks.Flexjson
+  private import semmle.code.java.frameworks.generated
   private import semmle.code.java.frameworks.guava.Guava
   private import semmle.code.java.frameworks.jackson.JacksonSerializability
   private import semmle.code.java.frameworks.javaee.jsf.JSFRenderer

java/ql/lib/semmle/code/java/frameworks/apache/IO.qll

@@ -1,11 +1,15 @@
 /** Custom definitions related to the Apache Commons IO library. */
 
 import java
-import IOGenerated
 private import semmle.code.java.dataflow.ExternalFlow
 
-// TODO: manual models that were not generated yet
 private class ApacheCommonsIOCustomSummaryCsv extends SummaryModelCsv {
+  /**
+   * Models that are not yet auto generated or where the generated summaries will
+   * be ignored.
+   * Note that if a callable has any handwritten summary, all generated summaries
+   * will be ignored for that callable.
+   */
   override predicate row(string row) {
     row =
       [

java/ql/lib/semmle/code/java/frameworks/generated.qll

@@ -0,0 +1,9 @@
+/**
+ * A module importing all generated Models as Data models.
+ */
+
+import java
+
+private module GeneratedFrameworks {
+  private import apache.IOGenerated
+}