standalone-xts.xml is not found in WS-AT performance tests

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[INFO] Building ws-at 1.0-SNAPSHOT
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[INFO]
[INFO] — maven-clean-plugin:2.5:clean (default-clean) @ ws-at —
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[INFO] — maven-resources-plugin:2.6:resources (default-resources) @ ws-at —
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/hudson/workspace/narayana-performance/comparison/ws-at/src/main/resources
[INFO]
[INFO] — maven-compiler-plugin:3.1:compile (default-compile) @ ws-at —
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 8 source files to /home/hudson/workspace/narayana-performance/comparison/ws-at/target/classes
[INFO]
[INFO] — maven-resources-plugin:2.6:testResources (default-testResources) @ ws-at —
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 2 resources
[INFO]
[INFO] — maven-compiler-plugin:3.1:testCompile (default-testCompile) @ ws-at —
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to /home/hudson/workspace/narayana-performance/comparison/ws-at/target/test-classes
[INFO]
[INFO] — maven-antrun-plugin:1.7:run (default) @ ws-at —
[INFO] Executing tasks

main:
[copy] Copying 12826 files to /home/hudson/workspace/narayana-performance/comparison/ws-at/target/server1
[copy] Copied 4874 empty directories to 143 empty directories under /home/hudson/workspace/narayana-performance/comparison/ws-at/target/server1
[copy] Copying 25652 files to /home/hudson/workspace/narayana-performance/comparison/ws-at/target/server2
[copy] Copied 9748 empty directories to 286 empty directories under /home/hudson/workspace/narayana-performance/comparison/ws-at/target/server2
[copy] Copying 51304 files to /home/hudson/workspace/narayana-performance/comparison/ws-at/target/server3
[copy] Copied 19496 empty directories to 572 empty directories under /home/hudson/workspace/narayana-performance/comparison/ws-at/target/server3
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[INFO] Reactor Summary:
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[INFO] comparison-parent .................................. SUCCESS [ 0.189 s]
[INFO] common ............................................. SUCCESS [ 1.305 s]
[INFO] ws-at .............................................. FAILURE [ 30.599 s]
[INFO] rest-at ............................................ SKIPPED
[INFO] jts ................................................ SKIPPED
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[INFO] BUILD FAILURE
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[INFO] Total time: 32.244 s
[INFO] Finished at: 2018-03-25T00:07:53+00:00
[INFO] Final Memory: 62M/680M
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[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.7:run (default) on project ws-at: An Ant BuildException has occured: Warning: Could not find file /home/hudson/workspace/narayana-performance/docs/examples/configs/standalone-xts.xml to copy.
[ERROR] around Ant part ...<copy file="/home/hudson/workspace/narayana-performance//docs/examples/configs/standalone-xts.xml" tofile="/home/hudson/workspace/narayana-performance/comparison/ws-at/target/server1/standalone/configuration/standalone-xts.xml"/>... @ 13:232 in /home/hudson/workspace/narayana-performance/comparison/ws-at/target/antrun/build-main.xml