--- old/src/jdk.jextract/share/classes/com/sun/tools/jextract/JextractTool.java	2019-04-08 17:27:24.000000000 +0530
+++ new/src/jdk.jextract/share/classes/com/sun/tools/jextract/JextractTool.java	2019-04-08 17:27:20.000000000 +0530
@@ -68,6 +68,7 @@
                 .map(new SymbolFilter(ctx))
                 .map(new LibraryLookupFilter(ctx))
                 .map(new DependencyFilter(ctx))
+                .map(new BuiltinTypesHandler(ctx))
                 .map(new TypedefHandler(ctx))
                 .map(new EmptyNameHandler())
                 .map(new DuplicateDeclarationHandler())