Well, I should have RTFM <https://github.com/google/guice/wiki/Scopes> indeed :
I
see that the "*in(Scopes.SINGLETON**)*;" are in fact not required once the
implementation class is bound.
So the final code would be :
@SuppressWarnings({ "unchecked", "rawtypes" })
protected void bindServer() {
bind(getServerClass()).in(Scopes.SINGLETON);
bind(new TypeLiteral<IServer<?>>(){}).to(getServerClass());
TypeLiteral<?> serverType = TypeLiteral.get(getServerClass()).
getSupertype(IServer.class);
Type exchangeType = ((ParameterizedType) serverType.getType()).
getActualTypeArguments()[0];
Type parameterizedType = Types.newParameterizedType(IServer.class,
exchangeType);
TypeLiteral<?> typeLiteral = TypeLiteral.get(parameterizedType);
bind(typeLiteral).to((Class)getServerClass());
}
protected Class<? extends IServer<?>> getServerClass() {
return UndertowServer.class;
}
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