discoverGitReferenceBuild()              
recordCoverage(tools: [[parser: 'JACOCO', pattern: 'target/site/jacoco/jacoco.xml']], sourceCodeRetention: 'NEVER') 

[Pipeline] discoverGitReferenceBuild
[ReferenceFinder] Found a `MultiBranchProject`, trying to resolve the target branch from the configuration
[ReferenceFinder] -> no target branch configured in step
[ReferenceFinder] -> detected a pull or merge request for target branch 'master'
[ReferenceFinder] -> inferred job for target branch: 'master'
[ReferenceFinder] -> detected 203 commits in current branch (last one: '4174ca0')
[ReferenceFinder] -> adding 1 commits from build '#17' of reference job (last one: '4174ca0')
[ReferenceFinder] -> found a matching commit in current branch and target branch: '4174ca0'
[ReferenceFinder] -> found build '#17' in reference job with matching commits
[ReferenceFinder] Found reference build '#17' for target branch
[Pipeline] recordCoverage
[JaCoCo] Recording coverage results
[JaCoCo] Searching for all files in '/home/jenkins/agent/workspace/java_simple-java-app_PR-31' that match the pattern 'target/site/jacoco/jacoco.xml'
[JaCoCo] Traversing of symbolic links: disabled
[JaCoCo] -> found 1 file
[JaCoCo] Successfully parsed file '/home/jenkins/agent/workspace/java_simple-java-app_PR-31/target/site/jacoco/jacoco.xml'
[JaCoCo] MODULE: 100.00% (1/1)
[JaCoCo] PACKAGE: 100.00% (1/1)
[JaCoCo] FILE: 100.00% (1/1)
[JaCoCo] CLASS: 100.00% (1/1)
[JaCoCo] METHOD: 33.33% (1/3)
[JaCoCo] LINE: 40.00% (2/5)
[JaCoCo] INSTRUCTION: 40.00% (6/15)
[JaCoCo] COMPLEXITY: 3
[JaCoCo] COMPLEXITY_MAXIMUM: 1
[JaCoCo] COMPLEXITY_DENSITY: 3/5
[JaCoCo] LOC: 5
[JaCoCo] Successfully processed file 'target/site/jacoco/jacoco.xml'
[Coverage] Recording coverage results
[Coverage] Searching for all files in '/home/jenkins/agent/workspace/java_simple-java-app_PR-31' that match the pattern 'target/site/jacoco/jacoco.xml'
[Coverage] Traversing of symbolic links: disabled
[Coverage] -> found 1 file
[Coverage] Successfully parsed file '/home/jenkins/agent/workspace/java_simple-java-app_PR-31/target/site/jacoco/jacoco.xml'
[Coverage] MODULE: 100.00% (1/1)
[Coverage] PACKAGE: 100.00% (1/1)
[Coverage] FILE: 100.00% (1/1)
[Coverage] CLASS: 100.00% (1/1)
[Coverage] METHOD: 33.33% (1/3)
[Coverage] LINE: 40.00% (2/5)
[Coverage] INSTRUCTION: 40.00% (6/15)
[Coverage] COMPLEXITY: 3
[Coverage] COMPLEXITY_MAXIMUM: 1
[Coverage] COMPLEXITY_DENSITY: 3/5
[Coverage] LOC: 5
[Coverage] Successfully processed file 'target/site/jacoco/jacoco.xml'
[Coverage] Resolving source code files...
[Coverage] Searching for source code files in '/home/jenkins/agent/workspace/java_simple-java-app_PR-31/src/main/java'
[Coverage] -> resolved absolute paths for all 1 source files
[Coverage] Making paths of 1 source code files relative to workspace root...
The recommended git tool is: NONE
using credential xxx-xxx-xxxx
[Coverage] Obtaining action of reference build
[Coverage] Obtaining reference build from reference recorder
[Coverage] -> Found 'java » simple-java-app » master #17'
[Coverage] -> Using reference build 'java/simple-java-app/master #17'
[Coverage] -> Found reference result in build '#17'
[Coverage] Calculating the code delta...
[Coverage] Exception while creating a GitClient instance for work tree '/home/jenkins/agent/workspace/java_simple-java-app_PR-31'
[Coverage] -> Git Delta Calculator could not be created for SCM 'hudson.plugins.git.GitSCM@273cbc42' in working tree '/home/jenkins/agent/workspace/java_simple-java-app_PR-31'
[Coverage] -> No suitable delta calculator found.
[Coverage] Calculating coverage deltas...
[Coverage] No quality gates have been set - skipping
[Coverage] Executing source code painting...
[Coverage] Finished coverage processing - adding the action to the build...
[Checks API] No suitable checks publisher found.