When I startup my SpringBoot app (where I am using Cassandra as the DB), I get the following trace during startup :
Could not register Graph extensions; this is normal if Tinkerpop was explicitly excluded from classpath
Unable to load JNR native implementation. This could be normal if JNR is excluded from the classpath
java.lang.NoClassDefFoundError: jnr/posix/POSIXHandler
at com.datastax.oss.driver.internal.core.os.Native$LibcLoader.load(Native.java:42)
at com.datastax.oss.driver.internal.core.os.Native.<clinit>(Native.java:59)
at com.datastax.oss.driver.internal.core.time.Clock.getInstance(Clock.java:34)
at com.datastax.oss.driver.internal.core.time.MonotonicTimestampGenerator.buildClock(MonotonicTimestampGenerator.java:109)
at com.datastax.oss.driver.internal.core.time.MonotonicTimestampGenerator.<init>(MonotonicTimestampGenerator.java:43)
at com.datastax.oss.driver.internal.core.time.AtomicTimestampGenerator.<init>(AtomicTimestampGenerator.java:52)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.datastax.oss.driver.internal.core.util.Reflection.buildFromConfig(Reflection.java:246)
at com.datastax.oss.driver.internal.core.util.Reflection.buildFromConfig(Reflection.java:108)
at com.datastax.oss.driver.internal.core.context.DefaultDriverContext.buildTimestampGenerator(DefaultDriverContext.java:373)
at com.datastax.oss.driver.internal.core.util.concurrent.LazyReference.get(LazyReference.java:55)
at com.datastax.oss.driver.internal.core.context.DefaultDriverContext.getTimestampGenerator(DefaultDriverContext.java:759)
at com.datastax.oss.driver.internal.core.session.DefaultSession$SingleThreaded.init(DefaultSession.java:349)
at com.datastax.oss.driver.internal.core.session.DefaultSession$SingleThreaded.access$1100(DefaultSession.java:300)
at com.datastax.oss.driver.internal.core.session.DefaultSession.lambda$init$0(DefaultSession.java:146)
at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98)
at io.netty.util.concurrent.PromiseTask.run(PromiseTask.java:106)
at io.netty.channel.DefaultEventLoop.run(DefaultEventLoop.java:54)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: jnr.posix.POSIXHandler
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:151)
at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
... 25 common frames omitted
The application starts fine, but is there a workaround to avoid/suppress this?