From c46bc5eab9f051b6fdff38e8fa61ded517bf13f3 Mon Sep 17 00:00:00 2001
From: Holger Friedrich <mail@holger-friedrich.de>
Date: Tue, 30 Dec 2025 00:04:51 +0100
Subject: [PATCH 1/2] Upgrade slf4j and logback

* Upgrade slf4j from 1.7.36 to 2.0.17
* Upgrade logback from 1.2.13 to 1.5.23
* Exclude slf4j-simple 1.7.x from pmd and checkstyle

Signed-off-by: Holger Friedrich <mail@holger-friedrich.de>
---
 custom-checks/checkstyle/pom.xml | 23 +++++++++++++++++------
 custom-checks/pmd/pom.xml        |  6 ++++++
 pom.xml                          |  4 ++--
 3 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/custom-checks/checkstyle/pom.xml b/custom-checks/checkstyle/pom.xml
index e0082d04..4411acc7 100644
--- a/custom-checks/checkstyle/pom.xml
+++ b/custom-checks/checkstyle/pom.xml
@@ -17,11 +17,22 @@
   <name>Checkstyle Custom Checks</name>
 
   <dependencies>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>${slf4j.version}</version>
+    </dependency>
     <dependency>
       <groupId>com.puppycrawl.tools</groupId>
       <artifactId>checkstyle</artifactId>
       <version>${checkstyle.version}</version>
       <scope>provided</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>org.slf4j</groupId>
+          <artifactId>slf4j-simple</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>com.puppycrawl.tools</groupId>
@@ -29,6 +40,12 @@
       <version>${checkstyle.version}</version>
       <type>test-jar</type>
       <scope>provided</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>org.slf4j</groupId>
+          <artifactId>slf4j-simple</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>org.eclipse.jetty</groupId>
@@ -63,12 +80,6 @@
       <artifactId>org.eclipse.jdt.annotation</artifactId>
       <version>${jdt-annotations.version}</version>
     </dependency>
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-api</artifactId>
-      <version>${slf4j.version}</version>
-      <scope>provided</scope>
-    </dependency>
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
diff --git a/custom-checks/pmd/pom.xml b/custom-checks/pmd/pom.xml
index 3b86f80b..2faef959 100644
--- a/custom-checks/pmd/pom.xml
+++ b/custom-checks/pmd/pom.xml
@@ -34,6 +34,12 @@
       <artifactId>pmd-test</artifactId>
       <version>${pmd.version}</version>
       <scope>test</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>org.slf4j</groupId>
+          <artifactId>slf4j-simple</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
   </dependencies>
 
diff --git a/pom.xml b/pom.xml
index fab8dafa..38734adf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -84,8 +84,8 @@
     <!-- Eclipse Java formatter version 4.26+ does not check test files -->
     <spotless.eclipse.version>4.25</spotless.eclipse.version>
     <spotless.eclipse.wtp.version>4.21.0</spotless.eclipse.wtp.version>
-    <slf4j.version>1.7.36</slf4j.version>
-    <logback.version>1.2.13</logback.version>
+    <slf4j.version>2.0.17</slf4j.version>
+    <logback.version>1.5.23</logback.version>
     <eea.version>2.4.0</eea.version>
     <m2e.jdt.annotationpath>target/dependency</m2e.jdt.annotationpath>
     <dom4j.version>2.2.0</dom4j.version>

From 793e70a95d482779b360ce88fddc61a19c1a8c5e Mon Sep 17 00:00:00 2001
From: Holger Friedrich <mail@holger-friedrich.de>
Date: Fri, 2 Jan 2026 00:24:39 +0100
Subject: [PATCH 2/2] address review comment

Signed-off-by: Holger Friedrich <mail@holger-friedrich.de>
---
 custom-checks/checkstyle/pom.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/custom-checks/checkstyle/pom.xml b/custom-checks/checkstyle/pom.xml
index 4411acc7..64ccc392 100644
--- a/custom-checks/checkstyle/pom.xml
+++ b/custom-checks/checkstyle/pom.xml
@@ -21,6 +21,7 @@
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-api</artifactId>
       <version>${slf4j.version}</version>
+      <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>com.puppycrawl.tools</groupId>