Be more verbose regarding Dockerfile location.

pom.xml

@@ -5,7 +5,7 @@
   <artifactId>container-check-sonar-plugin</artifactId>
   <packaging>sonar-plugin</packaging>
   <name>Container-Check Plugin for SonarQube</name>
-  <version>0.0.3</version>
+  <version>0.0.4</version>
   <description>A Sonar plugin which will look at a trivy-generated container vulnerability scan
     output file in JSON format and transform and upload the data to a running sonar instance.
     Invoked by sonar-scanner which knows where the running Sonar instance is.

src/main/java/uk/gov/justice/digital/sonar/plugin/containercheck/ContainerCheckSensor.java

@@ -52,8 +52,14 @@ public ContainerCheckSensor(final FileSystem fileSystem, final PathResolver path
             final FilePredicate filePredicate = context.fileSystem().predicates().matchesPathPattern(dockerPath);
             final Iterator<InputFile> files = context.fileSystem().inputFiles(filePredicate).iterator();
             final ContainerImageDependencyReason dependencyReason;
+
             if (!files.hasNext()) {
-                LOGGER.warn("No Dockerfiles found matching path property {}. ", dockerPath);
+                LOGGER.warn("No Dockerfiles found matching path property: {}", dockerPath);
+                LOGGER.warn("Please check also sonar.sources property eg. in sonar-project.properties, as it can be used as a prefix for above docker path.");
+                LOGGER.debug("baseDir is set to: {}", context.fileSystem().baseDir());
+                context.fileSystem().inputFiles(context.fileSystem().predicates().all()).forEach(
+                    inputFile -> LOGGER.debug("inputFile.relativePath: {}", inputFile.relativePath())
+		);
                 dependencyReason = null;
             }
             else {