See 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/240/display/redirect?page=changes>

Changes:

[mmerli] [docs] fix missing code quote on class name for Twitter Firehose source

[guosijie] Document TLS hostname verification option (#2403) (#2794)

[github] Function Serverside validation Part 2 (#2752)

[mmerli] Allow user to configure proxy as reverse HTTP proxy (#2801)

[github] Added log statements to debug

------------------------------------------
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2018-10-18T12:49:59.430 [INFO] Building jar: 
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2018-10-18T12:50:01.821 [WARNING] Configuration options: 'appendAssemblyId' is 
set to false, and 'classifier' is missing.
Instead of attaching the assembly file: 
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 it will become the file for main project artifact.
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project, the value of this file will be non-deterministic!
2018-10-18T12:50:01.821 [WARNING] Replacing pre-existing project main-artifact 
file: 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/target/pulsar-functions-metrics.jar>
with assembly file: 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/target/PrometheusMetricsServer.jar>
2018-10-18T12:50:02.156 [INFO] 
2018-10-18T12:50:02.156 [INFO] --- git-commit-id-plugin:2.2.4:revision 
(git-info) @ pulsar-functions-metrics ---
2018-10-18T12:50:02.515 [INFO] 
2018-10-18T12:50:02.515 [INFO] --- maven-dependency-plugin:2.10:build-classpath 
(build-classpath) @ pulsar-functions-metrics ---
2018-10-18T12:50:02.519 [INFO] Skipped writing classpath file 
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2018-10-18T12:50:02.677 [INFO] 
2018-10-18T12:50:02.677 [INFO] --- maven-remote-resources-plugin:1.5:process 
(process-resource-bundles) @ pulsar-functions-metrics ---
2018-10-18T12:50:03.462 [INFO] 
2018-10-18T12:50:03.463 [INFO] --- maven-resources-plugin:2.7:resources 
(default-resources) @ pulsar-functions-metrics ---
2018-10-18T12:50:03.464 [INFO] Using 'UTF-8' encoding to copy filtered 
resources.
2018-10-18T12:50:03.464 [INFO] skip non existing resourceDirectory 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/src/main/resources>
2018-10-18T12:50:03.464 [INFO] Copying 3 resources
2018-10-18T12:50:03.468 [INFO] Copying 3 resources
2018-10-18T12:50:03.626 [INFO] 
2018-10-18T12:50:03.626 [INFO] --- maven-compiler-plugin:3.7.0:compile 
(default-compile) @ pulsar-functions-metrics ---
2018-10-18T12:50:03.633 [INFO] Changes detected - recompiling the module!
2018-10-18T12:50:03.634 [INFO] Compiling 6 source files to 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/target/classes>
2018-10-18T12:50:04.090 [WARNING] 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/src/main/java/org/apache/pulsar/functions/metrics/PrometheusMetricsServer.java>:[87,17]
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2018-10-18T12:50:04.249 [INFO] 
2018-10-18T12:50:04.250 [INFO] --- maven-resources-plugin:2.7:testResources 
(default-testResources) @ pulsar-functions-metrics ---
2018-10-18T12:50:04.252 [INFO] Using 'UTF-8' encoding to copy filtered 
resources.
2018-10-18T12:50:04.252 [INFO] skip non existing resourceDirectory 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/src/test/resources>
2018-10-18T12:50:04.252 [INFO] Copying 3 resources
2018-10-18T12:50:04.254 [INFO] Copying 3 resources
2018-10-18T12:50:04.410 [INFO] 
2018-10-18T12:50:04.410 [INFO] --- maven-compiler-plugin:3.7.0:testCompile 
(default-testCompile) @ pulsar-functions-metrics ---
2018-10-18T12:50:04.415 [INFO] Nothing to compile - all classes are up to date
2018-10-18T12:50:04.573 [INFO] 
2018-10-18T12:50:04.573 [INFO] --- maven-surefire-plugin:2.21.0:test 
(default-test) @ pulsar-functions-metrics ---
2018-10-18T12:50:04.577 [INFO] Tests are skipped.
2018-10-18T12:50:04.888 [INFO] 
2018-10-18T12:50:04.889 [INFO] --- maven-jar-plugin:3.0.0:jar (default-jar) @ 
pulsar-functions-metrics ---
2018-10-18T12:50:04.900 [INFO] Building jar: 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/target/pulsar-functions-metrics.jar>
2018-10-18T12:50:05.084 [INFO] 
2018-10-18T12:50:05.084 [INFO] --- maven-site-plugin:3.5.1:attach-descriptor 
(attach-descriptor) @ pulsar-functions-metrics ---
2018-10-18T12:50:05.242 [INFO] 
2018-10-18T12:50:05.242 [INFO] --- maven-assembly-plugin:2.6:single (default) @ 
pulsar-functions-metrics ---
2018-10-18T12:50:06.436 [INFO] Building jar: 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/target/PrometheusMetricsServer.jar>
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2018-10-18T12:50:56.796 [INFO] 
------------------------------------------------------------------------
2018-10-18T12:50:56.796 [INFO] Reactor Summary:
2018-10-18T12:50:56.796 [INFO] 
2018-10-18T12:50:56.797 [INFO] Pulsar Build Tools 
................................. SUCCESS [ 20.310 s]
2018-10-18T12:50:56.797 [INFO] Pulsar 2.3.0-SNAPSHOT 
.............................. SUCCESS [ 12.224 s]
2018-10-18T12:50:56.797 [INFO] Pulsar Common 
...................................... SUCCESS [ 24.800 s]
2018-10-18T12:50:56.797 [INFO] Managed Ledger 
..................................... SUCCESS [ 34.765 s]
2018-10-18T12:50:56.797 [INFO] Managed Ledger 
..................................... SUCCESS [01:20 min]
2018-10-18T12:50:56.797 [INFO] Apache Pulsar :: Jclouds shaded 
.................... SUCCESS [ 20.241 s]
2018-10-18T12:50:56.797 [INFO] Apache Pulsar :: Tiered Storage :: Parent 
.......... SUCCESS [  6.919 s]
2018-10-18T12:50:56.797 [INFO] Apache Pulsar :: Tiered Storage :: JCloud 
.......... SUCCESS [ 29.363 s]
2018-10-18T12:50:56.798 [INFO] Pulsar ZooKeeper Utils 
............................. SUCCESS [ 30.569 s]
2018-10-18T12:50:56.798 [INFO] pulsar-broker-common 
............................... SUCCESS [ 15.575 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Functions :: Parent 
......................... SUCCESS [  7.255 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Functions :: Proto 
.......................... SUCCESS [ 17.490 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Client Schema 
............................... SUCCESS [ 50.764 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Functions :: API 
............................ SUCCESS [ 12.184 s]
2018-10-18T12:50:56.798 [INFO] Pulsar IO :: Parent 
................................ SUCCESS [  7.130 s]
2018-10-18T12:50:56.798 [INFO] Pulsar IO :: IO 
.................................... SUCCESS [ 12.081 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Client Java 
................................. SUCCESS [ 20.528 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Discovery Service WAR 
....................... SUCCESS [ 18.015 s]
2018-10-18T12:50:56.798 [INFO] Pulsar WebSocket 
................................... SUCCESS [ 18.527 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Functions :: Utils 
.......................... SUCCESS [ 15.730 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Client Admin Original 
....................... SUCCESS [ 15.492 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Functions :: Instance 
....................... SUCCESS [ 21.924 s]
2018-10-18T12:50:56.798 [INFO] Pulsar Functions :: Metrics 
........................ FAILURE [ 16.316 s]
2018-10-18T12:50:56.799 [INFO] Pulsar Functions :: Runtime 
........................ SKIPPED
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2018-10-18T12:50:56.800 [INFO] Apache Pulsar :: Docker Images 
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2018-10-18T12:50:56.800 [INFO] Apache Pulsar :: Docker Images :: Pulsar Latest 
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2018-10-18T12:50:56.800 [INFO] Apache Pulsar :: Docker Images :: Grafana 
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2018-10-18T12:50:56.800 [INFO] Apache Pulsar :: Docker Images :: Pulsar 
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2018-10-18T12:50:56.800 [INFO] Apache Pulsar :: Tests :: Pulsar Kafka Compat 
Client Tests 2.3.0-SNAPSHOT SKIPPED
2018-10-18T12:50:56.800 [INFO] 
------------------------------------------------------------------------
2018-10-18T12:50:56.800 [INFO] BUILD FAILURE
2018-10-18T12:50:56.800 [INFO] 
------------------------------------------------------------------------
2018-10-18T12:50:56.800 [INFO] Total time: 10:34 min
2018-10-18T12:50:56.801 [INFO] Finished at: 2018-10-18T12:50:56Z
2018-10-18T12:50:56.801 [INFO] 
------------------------------------------------------------------------
Waiting for Jenkins to finish collecting data
2018-10-18T12:50:58.062 [ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-assembly-plugin:2.6:single (default) on project 
pulsar-functions-metrics: Failed to create assembly: Error creating assembly 
archive jar-with-dependencies: Problem creating jar: 
jar:<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/target/pulsar-functions-metrics.jar!/org/apache/pulsar/functions/metrics/sink/PrometheusSink$Prometheus.class>:
 JAR entry 
org/apache/pulsar/functions/metrics/sink/PrometheusSink$Prometheus.class not 
found in 
<https://builds.apache.org/job/pulsar_release_nightly_snapshot/ws/pulsar-functions/metrics/target/pulsar-functions-metrics.jar>
 -> [Help 1]
2018-10-18T12:50:58.063 [ERROR] 
2018-10-18T12:50:58.063 [ERROR] To see the full stack trace of the errors, 
re-run Maven with the -e switch.
2018-10-18T12:50:58.063 [ERROR] Re-run Maven using the -X switch to enable full 
debug logging.
2018-10-18T12:50:58.063 [ERROR] 
2018-10-18T12:50:58.063 [ERROR] For more information about the errors and 
possible solutions, please read the following articles:
2018-10-18T12:50:58.063 [ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
2018-10-18T12:50:58.063 [ERROR] 
2018-10-18T12:50:58.063 [ERROR] After correcting the problems, you can resume 
the build with the command
2018-10-18T12:50:58.063 [ERROR]   mvn <goals> -rf :pulsar-functions-metrics
channel stopped
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