[Feature/betterlogs] Improved logs a lot

Author: Alathreon

JShellAPI/src/main/java/org/togetherjava/jshellapi/service/JShellService.java

@@ -55,6 +55,7 @@ public JShellService(DockerService dockerService, JShellSessionService sessionSe
             writer.write(sanitize(startupScript));
             writer.newLine();
         } catch (IOException | InterruptedException e) {
+            LOGGER.warn("Unexpected error during creation.", e);
             throw new DockerException(e);
         }
         this.doingOperation = false;
@@ -84,6 +85,7 @@ public Optional<JShellResult> eval(String code) throws DockerException {
 
             return Optional.of(readResult());
         } catch (DockerException | IOException | NumberFormatException ex) {
+            LOGGER.warn("Unexpected error.", ex);
             close();
             throw new DockerException(ex);
         } finally {
@@ -151,6 +153,7 @@ public Optional<List<String>> snippets() throws DockerException {
             }
             return Optional.of(snippets);
         } catch (IOException ex) {
+            LOGGER.warn("Unexpected error.", ex);
             close();
             throw new DockerException(ex);
         } finally {
@@ -236,6 +239,7 @@ private void checkContainerOK() throws DockerException {
                 }
             }
         } catch (IOException ex) {
+            LOGGER.warn("Unexpected error.", ex);
             throw new DockerException(ex);
         }
     }

JShellAPI/src/main/resources/application.properties

@@ -23,5 +23,4 @@ jshellapi.dockerConnectionTimeout=60
 server.error.include-message=always
 
 # Spring
-# TODO change the following to DEBUG later
-logging.level.org.springframework.web=INFO
+logging.level.org.springframework.web=DEBUG