Re: compiler errors after upgrade to gwt 2.8.0

Make sure you don't have gwt-user from both 2.7 and 2.8 in your classpath: it could be that 2.7 is earlier than 2.8 in the classpath, so the compiler sees the Comparator, List, Set and Arrays from 2.7, that don't have stream support, and then chokes when parsing Stream (which only exists in 2.8).

On Thursday, February 16, 2017 at 6:23:28 AM UTC+1, Magnus wrote:

Hello,

after upgrading a project from GWT 2.7.0 to GWT 2.8.0 I and when compiling with the GWT compiler using the -strict option, I get a lot of errors like this:

   Tracing compile failure path for type 'java.util.stream.Stream'

      [ERROR] Errors in 'jar:file:/home/magnus/dvl/lib/gwt-2.8.0/gwt-user.jar!/com/google/gwt/emul/java/util/stream/Stream.java'

         [ERROR] Line 1113: The method naturalOrder() is undefined for the type Comparator

         [ERROR] Line 101: The method spliterator() is undefined for the type List<Stream<? extends T>>

         [ERROR] Line 1098: The method naturalOrder() is undefined for the type Comparator

         [ERROR] Line 1122: The method spliterator() is undefined for the type List<T>

         [ERROR] Line 181: The method stream() is undefined for the type Set<T>

         [ERROR] Line 85: The method stream(Object[]) is undefined for the type Arrays

         [ERROR] Line 185: The method stream(T[]) is undefined for the type Arrays

When switching back to GWT 2.7.0, the errors don't appear.

Unfortunately, the messages do not point in my code. So how do I have to modify my project in order to solve the problem?

Thanks
Magnus

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