java - Netty logs now show "low-level API for accessing direct buffers reliably" -


why netty 4.0.15 4.0.19 seeing "your platform not provide complete low-level api accessing direct buffers reliably." in logs?

i'm not android platform , jre hasn't changed , i'm using osgi.

did change order wise how detect this?

platformdependent0 appears have changed how detects if sun.nio.ch.directbuffer available.

    boolean directbufferfreeable = false;     try {         class<?> cls = class.forname("sun.nio.ch.directbuffer", false, getclassloader(platformdependent0.class));         method method = cls.getmethod("cleaner");         if ("sun.misc.cleaner".equals(method.getreturntype().getname())) {             directbufferfreeable = true;         }     } catch (throwable t) {         // don't have sun.nio.ch.directbuffer.cleaner().     }     logger.debug("sun.nio.ch.directbuffer.cleaner(): {}", directbufferfreeable? "available" : "unavailable");

since osgi application needed add "sun.nio.ch" classloader. i'm using felix in case , added config following properties:

config.put(framework_systempackages_extra, "sun.misc,sun.nio.ch");

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