Repository navigation
Illegal Reflective Access in Java 10 #3729
Description
When using [com.google.cloud/google-cloud "0.47.0-alpha"] in Clojure [org.clojure/clojure "1.9.0"] using openjdk version "10.0.2" 2018-07-17, when my application starts, I receive the following warnings from the JVM:
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by io.grpc.netty.shaded.io.netty.util.internal.ReflectionUtil (file:/usr/local/bin/lrm-logging-service.jar) to constructor java.nio.DirectByteBuffer(long,int)
WARNING: Please consider reporting this to the maintainers of io.grpc.netty.shaded.io.netty.util.internal.ReflectionUtil
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
The project producing this error is using the following class imports from the Google Cloud library:
com.google.cloud.datastore: Key KeyFactory Datastore DatastoreOptions
com.google.cloud.logging: Logging Logging$WriteOption LoggingOptions LogEntry Payload Payload$JsonPayload
com.google.cloud: MonitoredResource
Activity
elharo commentedon Sep 26, 2018
That's a really old version. Can you try in 0.62.0-alpha and see if it still happens?
jrdoane commentedon Sep 26, 2018
The latest version in Maven Central is
0.42.0-alphawhich is why I'm using it. I'm using the artifact link described in the README. Is this not the correct one to be using?https://search.maven.org/search?q=g:com.google.cloud%20a:google-cloud
jrdoane commentedon Sep 26, 2018
I also tried using these two dependencies instead of the
0.42.0-alphafor the "all-in-one" artifact with the same result:[com.google.cloud/google-cloud-datastore "1.45.0"][com.google.cloud/google-cloud-logging "1.45.0"]elharo commentedon Sep 26, 2018
Off the top of my head, I'm not sure what the com.google.cloud:google-cloud artifact is. Wherever it comes from, it hasn't been updated since May. If 1.45.0 is failing, we probably need to take a look at this. I'm not sure what our official stance on Java 9 and 10 support is.
It looks like the issue comes from deep inside Netty:
WARNING: Please consider reporting this to the maintainers of io.grpc.netty.shaded.io.netty.util.internal.ReflectionUtil
so that's where the initial fix needs to go followed by an upgrade to our dependency here.
Mistic92 commentedon Sep 30, 2018
As JDK11 is GA support should be considered