Add new check for format

.github/ghprcomment.yml

@@ -39,6 +39,16 @@
 
     You can then run these tests in IntelliJ to reproduce the failing tests locally.
     We offer a quick test running howto in the section [Final build system checks](https://devdocs.jabref.org/getting-into-the-code/guidelines-for-setting-up-a-local-workspace/intellij-12-build.html#final-build-system-checks) in our setup guide.
+- jobName: format
+  workflowName: 'Source Code Tests'
+  message: >
+    Your code currently does not meet JabRef's code guidelines.
+    IntelliJ auto format covers some cases.
+    There seem to be issues with your code style and autoformat configuration.
+    Please reformat your code (<kbd>Ctrl</kbd>+<kbd>Alt</kbd>+<kbd>L</kbd>) and commit, then push.
+
+
+    In special cases, consider using `// formatter:off` and `// formatter:on` annotations to allow deviation from the code style.
 - jobName: Checkstyle
   workflowName: 'Source Code Tests'
   message: >

.github/workflows/tests-code.yml

@@ -114,6 +114,18 @@ jobs:
         run: |
           ./gradlew --no-configuration-cache :rewriteDryRun
 
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - uses: koppor/intellij-idea-format@update-to-latest-intellij
+        with:
+          file-mask: "*.java"
+          settings-file: "config/IntelliJ Code Style.xml"
+      # job should fail in case there are changes
+      - name: Check if any files changed
+        run: git diff --exit-code
+
   modernizer:
     name: Modernizer
     runs-on: ubuntu-latest

config/IntelliJ Code Style.xml

@@ -35,6 +35,7 @@
     </option>
     <option name="RECORD_COMPONENTS_WRAP" value="0" />
     <option name="MULTI_CATCH_TYPES_WRAP" value="0" />
+    <option name="ENABLE_JAVADOC_FORMATTING" value="false" />
   </JavaCodeStyleSettings>
   <codeStyleSettings language="JAVA">
     <option name="KEEP_FIRST_COLUMN_COMMENT" value="false" />
@@ -306,4 +307,4 @@
       </rules>
     </arrangement>
   </codeStyleSettings>
-</code_scheme>
+</code_scheme>

jablib/src/test/java/org/jabref/logic/exporter/CffExporterTest.java

@@ -1,4 +1,3 @@
-
 package org.jabref.logic.exporter;
 
 import java.io.IOException;

jablib/src/test/java/org/jabref/logic/formatter/bibtexfields/RemoveNewlinesFormatterTest.java

@@ -1,4 +1,3 @@
-
 package org.jabref.logic.formatter.bibtexfields;
 
 import org.junit.jupiter.api.BeforeEach;

jablib/src/test/java/org/jabref/logic/formatter/bibtexfields/ReplaceTabsBySpaceFormaterTest.java

@@ -1,4 +1,3 @@
-
 package org.jabref.logic.formatter.bibtexfields;
 
 import org.junit.jupiter.api.BeforeEach;

jablib/src/test/java/org/jabref/logic/formatter/bibtexfields/TrimWhitespaceFormatterTest.java

@@ -1,4 +1,3 @@
-
 package org.jabref.logic.formatter.bibtexfields;
 
 import org.junit.jupiter.api.BeforeEach;