[INFO] Scanning for projects...
[INFO] 
[INFO] --------------< com.example.firestore:firestore-samples >---------------
[INFO] Building Google Cloud Firestore Samples 1.0.0
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- exec-maven-plugin:1.6.0:java (default-cli) @ firestore-samples ---
########## Adding document 1 ##########
Update time : 2019-07-24T15:19:53.898956000Z
########## Adding document 2 ##########
Update time : 2019-07-24T15:19:54.113874000Z
########## Adding document 3 ##########
Update time : 2019-07-24T15:19:54.274086000Z
########## users born before 1900 ##########
User: cbabbage
First: Charles
Last: Babbage
Born: 1791
User: alovelace
First: Ada
Last: Lovelace
Born: 1815
########## All users ##########
User: alovelace
First: Ada
Last: Lovelace
Born: 1815
User: aturing
First: Alan
Middle: Mathison
Last: Turing
Born: 1912
User: cbabbage
First: Charles
Last: Babbage
Born: 1791
###################################
[WARNING] thread Thread[Gax-1,5,com.example.firestore.Quickstart] was interrupted but is still alive after waiting at least 15000msecs
[WARNING] thread Thread[Gax-1,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-1,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-executor-0,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-2,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-3,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[Gax-2,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[Gax-3,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[Gax-4,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-4,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-5,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-6,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-7,5,com.example.firestore.Quickstart] will linger despite being asked to die via interruption
[WARNING] NOTE: 12 thread(s) did not finish despite being asked to  via interruption. This is not a problem with exec:java, it is a problem with the running code. Although not serious, it should be remedied.
[WARNING] Couldn't destroy threadgroup org.codehaus.mojo.exec.ExecJavaMojo$IsolatedThreadGroup[name=com.example.firestore.Quickstart,maxpri=10]
java.lang.IllegalThreadStateException
    at java.lang.ThreadGroup.destroy (ThreadGroup.java:778)
    at org.codehaus.mojo.exec.ExecJavaMojo.execute (ExecJavaMojo.java:321)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
    at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  17.396 s
[INFO] Finished at: 2019-07-24T11:40:35-04:00
[INFO] ------------------------------------------------------------------------