Java Compiler - Messages

Can't create fingerprints for some files:
- 'Exit code: 1 - /var/jenkins_home/jobs/Mistral_Metrics/workspace/modules/CodeGenerator/src/main/java/it/tidalwave/image/codegenerator/MetadataGenerator.java' file not found
- 'Exit code: 1 - /var/jenkins_home/jobs/Mistral_Metrics/workspace/modules/Core/src/main/java/it/tidalwave/image/metadata/IPTC.java' file not found

Parsing console log (workspace: '/var/jenkins_home/jobs/Mistral_Metrics/workspace')
Successfully parsed console log
-> found 74 issues (skipped 82 duplicates)
Post processing issues on 'Master' with source code encoding 'UTF-8'
Creating SCM blamer to obtain author and commit information for affected files
-> No blamer installed yet. You need to install the 'git-forensics' plugin to enable blaming for Git.
Resolving file names for all issues in workspace '/var/jenkins_home/jobs/Mistral_Metrics/workspace'
-> resolved paths in source directory (33 found, 2 not found)
Resolving module names from module definitions (build.xml, pom.xml, or Manifest.mf files)
-> resolved module names for 74 issues
Resolving package names (or namespaces) by parsing the affected files
-> resolved package names of 35 affected files
No filter has been set, publishing all 74 issues
Creating fingerprints for all affected code blocks to track issues over different builds
-> created fingerprints for 72 issues (skipped 2 issues)
Copying affected files to Jenkins' build folder '/var/jenkins_home/jobs/Mistral_Metrics/builds/1301/files-with-issues'
-> 33 copied, 0 not in workspace, 2 not-found, 0 with I/O error
Repository miner is not configured, skipping repository mining
Reference build recorder is not configured
Obtaining reference build from same job (Mistral :: Metrics)
Using reference build 'Mistral_Metrics #1300' to compute new, fixed, and outstanding issues
Issues delta (vs. reference build): outstanding: 74, new: 0, fixed: 0
No quality gates have been set - skipping
Health report is disabled - skipping
Created analysis result for 74 issues (found 0 new issues, fixed 0 issues)
Attaching ResultAction with ID 'java' to build 'Mistral_Metrics #1301'.