diff -r 82a3005cb038 -r cc2673fa8c20 src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/JavadocTool.java
--- a/src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/JavadocTool.java	Fri Mar 09 11:36:12 2018 +0800
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/tool/JavadocTool.java	Fri Mar 09 09:42:10 2018 +0100
@@ -38,6 +38,7 @@
 import javax.tools.StandardJavaFileManager;
 
 import com.sun.tools.javac.code.ClassFinder;
+import com.sun.tools.javac.code.DeferredCompletionFailureHandler;
 import com.sun.tools.javac.code.Symbol.Completer;
 import com.sun.tools.javac.code.Symbol.CompletionFailure;
 import com.sun.tools.javac.comp.Enter;
@@ -70,6 +71,7 @@
 
     final Messager messager;
     final ClassFinder javadocFinder;
+    final DeferredCompletionFailureHandler dcfh;
     final Enter javadocEnter;
     final Set<JavaFileObject> uniquefiles;
 
@@ -81,6 +83,7 @@
         super(context);
         messager = Messager.instance0(context);
         javadocFinder = JavadocClassFinder.instance(context);
+        dcfh = DeferredCompletionFailureHandler.instance(context);
         javadocEnter = JavadocEnter.instance(context);
         uniquefiles = new HashSet<>();
     }
@@ -208,6 +211,7 @@
 
             etable.setClassDeclList(listClasses(classTrees.toList()));
 
+            dcfh.setHandler(dcfh.userCodeHandler);
             etable.analyze();
         } catch (CompletionFailure cf) {
             throw new ToolException(ABNORMAL, cf.getMessage(), cf);