I think tomcat has nothing todo with this. This is the Threadpool that parallelStream() uses. So this is a problem of the streaming api of java The threadpool needs to set the context classloader on its created threads.. So you need to use i think your own ThreadPool, i think that is doable:
https://stackoverflow.com/questions/21163108/custom-thread-pool-in-java-8-parallel-stream/22269778#22269778 On 30 November 2017 at 03:31, Xueheng Wu <x...@thoughtworks.com> wrote: > Hi, > I met a strange error these days, and need help. > Our application is running on Tomcat 8.5.11 (windows 10 64bit）with > JRE 1.8.0_121. > In the application, we use parallelStream to do some logic, like this: > There are many steps in the logic, and some of them use togglz, then we > got error. > > After checking togglz’s code, I found that it calls > “Thread.currentThread().getContextClassLoader()” every times calling > togglz. > > Then I print out context class loader when calling togglz, like this: > And I find a strange thing. Only *execute thread* has context class > loader, *worker thread *created by parallelStream got *null* for class > loader. > But when it start as an springboot application, all threads has context > class loader: > So please tell me why class loader got null and how to avoid it. > Best regards. > -- Johan Compagner Servoy
