logging: minor adjustments to log messages

Author: AlexanderSchultheiss

src/main/java/org/variantsync/vevos/simulation/io/kernelhaven/KernelHavenPCIO.java

@@ -9,6 +9,7 @@
 import org.variantsync.vevos.simulation.io.ResourceWriter;
 import org.variantsync.vevos.simulation.io.Resources;
 import org.variantsync.vevos.simulation.io.data.CSV;
+import org.variantsync.vevos.simulation.util.Logger;
 import org.variantsync.vevos.simulation.util.fide.bugfix.FixTrueFalse;
 import org.variantsync.vevos.simulation.util.io.CaseSensitivePath;
 import org.variantsync.vevos.simulation.util.io.PathUtils;
@@ -44,9 +45,11 @@ public boolean canWrite(final Path p) {
     public Result<Artefact, Exception> load(final Path csvPath) {
         final Map<CaseSensitivePath, SourceCodeFile> files = new HashMap<>();
         final CSV csv;
+        Logger.debug("Loading csv file: " + csvPath);
         try {
             csv = Resources.Instance().load(CSV.class, csvPath);
         } catch (final Resources.ResourceIOException resourceFailure) {
+            Logger.warning("Was not able to load csv file: " + resourceFailure);
             return Result.Failure(resourceFailure);
         }
 
@@ -75,6 +78,7 @@ public Result<Artefact, Exception> load(final Path csvPath) {
                         p -> new SourceCodeFile(fileCondition, p))
                         .addTrace(createAnnotation(blockCondition, startLine, endLine));
             } catch (final Exception e) {
+                Logger.warning("Was not able to parse csv file: " + e);
                 return Result.Failure(e);
             }
         }

src/main/java/org/variantsync/vevos/simulation/variability/pc/SourceCodeFile.java

@@ -53,7 +53,6 @@ public Result<GroundTruth, Exception> generateVariant(
         if (!Files.exists(sourceFile.path())) {
             return Result.Failure(new FileNotFoundException("Source file " + sourceFile + " does not exist!"));
         }
-
         return
                 // Create the target file.
                 PathUtils.createEmptyAsResult(targetFile.path())

src/main/java/org/variantsync/vevos/simulation/variability/pc/variantlines/VariantLine.java

@@ -23,8 +23,8 @@ public List<String> project(final VariantGenerationOptions projectionOptions, fi
                 // This was logged frequently and is caused by https://bugs.openjdk.java.net/browse/JDK-8199413
                 // Skipping the line really is the best solution, as the empty line is created by appending a line separator
                 // to the previous line. I added the additional if-statement, to only catch cases in which more than one line
-                // is out of bounds, which indicates a serious problem.
-                Logger.error(logMessage);
+                // is out of bounds, which might indicate a problem.
+                Logger.debug(logMessage);
             }
 
             return List.of();