java.lang.NoClassDefFoundError: jnr/posix/POSIXHandler启动基于cassandra的春季引导应用程序

Question

当我启动我的SpringBoot应用程序(在这里我使用Cassandra作为DB)时，我在启动过程中得到了以下跟踪：

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

应用程序启动良好，但是否有解决办法来避免/抑制这种情况？

Answer 1

看起来这是很久以前就被问到的了，但是我遇到了同样的问题，我自己解决了，所以我在这里发布了解决方案。

在我的build.gradle文件中，我添加了以下导入

compile "com.github.jnr:jnr-posix:3.1.15"