From a70b5f246e8cf553d6bd4a724c340f2ea36cdbaa Mon Sep 17 00:00:00 2001
From: Markus Spann <spannm@outlook.de>
Date: Fri, 10 Apr 2026 15:00:00 +0100
Subject: [PATCH 1/5] chore: add maven-enforcer-plugin for bytecode and
 environment validation

Align compiler source/target with java.version property
---
 pom.xml | 44 ++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/pom.xml b/pom.xml
index 45c40d16..8f0c332a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,12 +61,12 @@
 
         <!-- Build properties -->
         <java.version>1.8</java.version>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>${java.version}</maven.compiler.source>
+        <maven.compiler.target>${java.version}</maven.compiler.target>
         <maven.build.timestamp.format>yyyyMMddHHmmss</maven.build.timestamp.format>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
-        <!-- Artifact Dependencies Version-->
+        <!-- Artifact Dependencies Versions -->
         <commons-configuration2.version>2.10.1</commons-configuration2.version>
         <commons-lang.version>3.18.0</commons-lang.version>
         <commons-io.version>2.17.0</commons-io.version>
@@ -81,7 +81,7 @@
         <!-- IBAN Generator -->
         <iban4j.version>3.2.3-RELEASE</iban4j.version>
 
-        <!-- Maven Pluging Version -->
+        <!-- Maven Plugin Versions -->
         <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
         <nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
         <maven-source-plugin.version>3.0.1</maven-source-plugin.version>
@@ -91,6 +91,8 @@
         <maven-surefire-plugin.version>2.22.0</maven-surefire-plugin.version>
         <maven-checkstyle-plugin.version>3.0.0</maven-checkstyle-plugin.version>
         <jacoco-maven-plugin.version>0.8.4</jacoco-maven-plugin.version>
+        <maven-enforcer-plugin.version>3.6.2</maven-enforcer-plugin.version>
+        <extra-enforcer-rules.version>1.12.0</extra-enforcer-rules.version>
 
         <!-- Tests version -->
         <junit.version>5.10.2</junit.version>
@@ -286,6 +288,40 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-enforcer-plugin</artifactId>
+                <version>${maven-enforcer-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>enforce-bytecode-version</id>
+                        <goals>
+                            <goal>enforce</goal>
+                        </goals>
+                        <configuration>
+                            <rules>
+                                <enforceBytecodeVersion>
+                                    <maxJdkVersion>${java.version}</maxJdkVersion>
+                                </enforceBytecodeVersion>
+                                <requireMavenVersion>
+                                    <version>[3.8.0,)</version>
+                                </requireMavenVersion>
+                                <requireJavaVersion>
+                                    <version>[1.8, 1.9)</version>
+                                </requireJavaVersion>
+                            </rules>
+                            <fail>true</fail>
+                        </configuration>
+                    </execution>
+                </executions>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.codehaus.mojo</groupId>
+                        <artifactId>extra-enforcer-rules</artifactId>
+                        <version>${extra-enforcer-rules.version}</version>
+                    </dependency>
+                </dependencies>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>

From ba67ab278200e2e79c9ee3b6c8c98ab0e61f2c26 Mon Sep 17 00:00:00 2001
From: Markus Spann <spannm@outlook.de>
Date: Fri, 10 Apr 2026 15:15:15 +0100
Subject: [PATCH 2/5] build: Maven plugin updates

- Update core maven plugins to latest stable Java8-comptabile versions
- Remove obsolete junit-platform-surefire-provider dependency
---
 pom.xml | 39 +++++++++++----------------------------
 1 file changed, 11 insertions(+), 28 deletions(-)

diff --git a/pom.xml b/pom.xml
index 8f0c332a..fd795607 100644
--- a/pom.xml
+++ b/pom.xml
@@ -77,27 +77,24 @@
         <jackson.version>2.13.3</jackson.version>
         <bcpkix-jdk18.version>1.79</bcpkix-jdk18.version>
         <lombok.version>1.18.22</lombok.version>
-
-        <!-- IBAN Generator -->
         <iban4j.version>3.2.3-RELEASE</iban4j.version>
 
         <!-- Maven Plugin Versions -->
-        <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
-        <nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
-        <maven-source-plugin.version>3.0.1</maven-source-plugin.version>
-        <maven-javadoc-plugin.version>3.2.0</maven-javadoc-plugin.version>
-        <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
-        <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
-        <maven-surefire-plugin.version>2.22.0</maven-surefire-plugin.version>
-        <maven-checkstyle-plugin.version>3.0.0</maven-checkstyle-plugin.version>
-        <jacoco-maven-plugin.version>0.8.4</jacoco-maven-plugin.version>
+        <exec-maven-plugin.version>3.6.3</exec-maven-plugin.version>
+        <nexus-staging-maven-plugin.version>1.7.0</nexus-staging-maven-plugin.version>
+        <maven-source-plugin.version>3.4.0</maven-source-plugin.version>
+        <maven-javadoc-plugin.version>3.12.0</maven-javadoc-plugin.version>
+        <maven-deploy-plugin.version>3.1.4</maven-deploy-plugin.version>
+        <maven-gpg-plugin.version>3.2.8</maven-gpg-plugin.version>
+        <maven-surefire-plugin.version>3.5.5</maven-surefire-plugin.version>
+        <maven-checkstyle-plugin.version>3.6.0</maven-checkstyle-plugin.version>
+        <jacoco-maven-plugin.version>0.8.14</jacoco-maven-plugin.version>
         <maven-enforcer-plugin.version>3.6.2</maven-enforcer-plugin.version>
         <extra-enforcer-rules.version>1.12.0</extra-enforcer-rules.version>
 
         <!-- Tests version -->
         <junit.version>5.10.2</junit.version>
         <junit-platform-launcher.version>1.8.2</junit-platform-launcher.version>
-        <junit-platform-surefire-provider.version>1.2.0</junit-platform-surefire-provider.version>
         <mockito.version>4.3.1</mockito.version>
         <assertj.version>3.22.0</assertj.version>
 
@@ -255,10 +252,8 @@
                         <phase>validate</phase>
                         <configuration>
                             <configLocation>google_checks.xml</configLocation>
-                            <encoding>UTF-8</encoding>
                             <consoleOutput>true</consoleOutput>
                             <failsOnError>true</failsOnError>
-                            <linkXRef>false</linkXRef>
                             <suppressionsLocation>checkstyle-suppressions.xml</suppressionsLocation>
                             <suppressionsFileExpression>checkstyle.suppressions.file</suppressionsFileExpression>
                         </configuration>
@@ -356,7 +351,7 @@
                     <skip>true</skip>
                 </configuration>
             </plugin>
-<!-- To sign the artifacts -->
+            <!-- To sign the artifacts -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-gpg-plugin</artifactId>
@@ -383,7 +378,7 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>${maven-surefire-plugin.version}</version>
                 <configuration>
-                    <!--                    <argLine>${surefireArgLine}</argLine>-->
+                    <!-- <argLine>${surefireArgLine}</argLine> -->
                     <reuseForks>true</reuseForks>
                     <trimStackTrace>false</trimStackTrace>
                     <includes>
@@ -402,18 +397,6 @@
                         <exclude>**/utils/*</exclude>
                     </excludes>
                 </configuration>
-                <dependencies>
-                    <dependency>
-                        <groupId>org.junit.platform</groupId>
-                        <artifactId>junit-platform-surefire-provider</artifactId>
-                        <version>${junit-platform-surefire-provider.version}</version>
-                    </dependency>
-                    <dependency>
-                        <groupId>org.junit.jupiter</groupId>
-                        <artifactId>junit-jupiter-engine</artifactId>
-                        <version>${junit.version}</version>
-                    </dependency>
-                </dependencies>
             </plugin>
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>

From 0bb9fc0144faa83ec292dea41f2eef407016fc71 Mon Sep 17 00:00:00 2001
From: Markus Spann <spannm@outlook.de>
Date: Fri, 10 Apr 2026 15:30:30 +0100
Subject: [PATCH 3/5] build: simplify test dependencies and upgrade JUnit 5

- Use junit-jupiter aggregator instead of separate artifacts
- Remove redundant junit-platform-launcher
- Upgrade JUnit to 5.14.3, AssertJ to 3.27.7, and Mockito to 4.11.0
---
 pom.xml | 30 ++++++------------------------
 1 file changed, 6 insertions(+), 24 deletions(-)

diff --git a/pom.xml b/pom.xml
index fd795607..db53e84b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -92,11 +92,10 @@
         <maven-enforcer-plugin.version>3.6.2</maven-enforcer-plugin.version>
         <extra-enforcer-rules.version>1.12.0</extra-enforcer-rules.version>
 
-        <!-- Tests version -->
-        <junit.version>5.10.2</junit.version>
-        <junit-platform-launcher.version>1.8.2</junit-platform-launcher.version>
-        <mockito.version>4.3.1</mockito.version>
-        <assertj.version>3.22.0</assertj.version>
+        <!-- Test Dependency Versions -->
+        <junit.version>5.14.3</junit.version>
+        <assertj.version>3.27.7</assertj.version>
+        <mockito.version>4.11.0</mockito.version>
 
         <!-- Sonar -->
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
@@ -191,30 +190,13 @@
             <version>${iban4j.version}</version>
             <scope>test</scope>
         </dependency>
+        <!-- use single aggregator artefact to pull in JUnit 5 -->
         <dependency>
             <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-api</artifactId>
+            <artifactId>junit-jupiter</artifactId>
             <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-params</artifactId>
-            <version>${junit.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.platform</groupId>
-            <artifactId>junit-platform-launcher</artifactId>
-            <version>${junit-platform-launcher.version}</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>

From 9827058f2f1a71de4123d0dadfcd1e637e49da42 Mon Sep 17 00:00:00 2001
From: Markus Spann <spannm@outlook.de>
Date: Fri, 10 Apr 2026 15:45:45 +0100
Subject: [PATCH 4/5] build: update dependencies

- Upgrade core dependencies:
    - commons-configuration2 to 2.14.0, lang3 to 3.20.0, io to 2.21.0
    - slf4j to 2.0.17
    - jackson-datatype/-annotations to 2.21.2
    - bouncycastle (bcpkix-jdk18on) to 1.83
    - lombok to 1.18.44
- Switch from org.iban4j to de.speedbanking:iban-commons for sample IBAN generation
- Refactor jackson properties for better granularity
---
 pom.xml                                       | 41 ++++++++++---------
 .../ibanity/samples/helper/SampleHelper.java  |  8 ++--
 .../FinancialInstitutionAccountSample.java    |  6 +--
 3 files changed, 28 insertions(+), 27 deletions(-)

diff --git a/pom.xml b/pom.xml
index db53e84b..63431ad3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -67,17 +67,18 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <!-- Artifact Dependencies Versions -->
-        <commons-configuration2.version>2.10.1</commons-configuration2.version>
-        <commons-lang.version>3.18.0</commons-lang.version>
-        <commons-io.version>2.17.0</commons-io.version>
+        <commons-configuration2.version>2.14.0</commons-configuration2.version>
+        <commons-lang.version>3.20.0</commons-lang.version>
+        <commons-io.version>2.21.0</commons-io.version>
         <commons-math3.version>3.6.1</commons-math3.version>
-        <commons-codec.version>1.15</commons-codec.version>
-        <slf4j.version>1.7.35</slf4j.version>
-        <httpclient.version>4.5.13</httpclient.version>
-        <jackson.version>2.13.3</jackson.version>
-        <bcpkix-jdk18.version>1.79</bcpkix-jdk18.version>
-        <lombok.version>1.18.22</lombok.version>
-        <iban4j.version>3.2.3-RELEASE</iban4j.version>
+        <commons-codec.version>1.21.0</commons-codec.version>
+        <slf4j.version>2.0.17</slf4j.version>
+        <httpclient.version>4.5.14</httpclient.version>
+        <jackson-annotations.version>2.21</jackson-annotations.version>
+        <jackson-datatype.version>2.21.2</jackson-datatype.version>
+        <bcpkix-jdk18.version>1.83</bcpkix-jdk18.version>
+        <lombok.version>1.18.44</lombok.version>
+        <iban-commons.version>1.8.4</iban-commons.version>
 
         <!-- Maven Plugin Versions -->
         <exec-maven-plugin.version>3.6.3</exec-maven-plugin.version>
@@ -158,20 +159,20 @@
             <version>${lombok.version}</version>
             <scope>provided</scope>
         </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.datatype</groupId>
-            <artifactId>jackson-datatype-jdk8</artifactId>
-            <version>${jackson.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-annotations</artifactId>
-            <version>${jackson.version}</version>
+            <version>${jackson-annotations.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.datatype</groupId>
+            <artifactId>jackson-datatype-jdk8</artifactId>
+            <version>${jackson-datatype.version}</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.datatype</groupId>
             <artifactId>jackson-datatype-jsr310</artifactId>
-            <version>${jackson.version}</version>
+            <version>${jackson-datatype.version}</version>
         </dependency>
         <dependency>
             <groupId>org.bitbucket.b_c</groupId>
@@ -185,9 +186,9 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.iban4j</groupId>
-            <artifactId>iban4j</artifactId>
-            <version>${iban4j.version}</version>
+            <groupId>de.speedbanking</groupId>
+            <artifactId>iban-commons</artifactId>
+            <version>${iban-commons.version}</version>
             <scope>test</scope>
         </dependency>
         <!-- use single aggregator artefact to pull in JUnit 5 -->
diff --git a/src/test/java/com/ibanity/samples/helper/SampleHelper.java b/src/test/java/com/ibanity/samples/helper/SampleHelper.java
index 5332bba6..8e4e778e 100644
--- a/src/test/java/com/ibanity/samples/helper/SampleHelper.java
+++ b/src/test/java/com/ibanity/samples/helper/SampleHelper.java
@@ -9,9 +9,9 @@
 import com.ibanity.apis.client.products.xs2a.sandbox.models.FinancialInstitutionUser;
 import com.ibanity.apis.client.products.xs2a.sandbox.models.factory.create.FinancialInstitutionHoldingCreationQuery;
 import com.ibanity.apis.client.products.xs2a.sandbox.models.factory.create.FinancialInstitutionTransactionCreationQuery;
+import de.speedbanking.iban.IbanRegistry;
+import de.speedbanking.iban.RandomIban;
 import org.apache.commons.math3.util.Precision;
-import org.iban4j.CountryCode;
-import org.iban4j.Iban;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -68,7 +68,7 @@ public static FinancialInstitutionTransactionCreationQuery generateRandomTransac
                 .description("Car rental")
 
                 .counterpartName("Stroman, Hettinger and Swift")
-                .counterpartReference(Iban.random(CountryCode.BE).getAccountNumber())
+                .counterpartReference(RandomIban.of(IbanRegistry.BE).getAccountNumber())
 
                 .executionDate(Instant.now().plus(3, ChronoUnit.DAYS))
                 .valueDate(Instant.now().minus(1, ChronoUnit.DAYS))
@@ -96,7 +96,7 @@ public static PaymentInitiationRequestCreationQuery generateRandomPaymentInitiat
                 .currency("EUR")
 
                 .creditorName("Fake Creditor Name")
-                .creditorAccountReference(Iban.random(CountryCode.BE).toString())
+                .creditorAccountReference(RandomIban.of(IbanRegistry.BE).toString())
                 .creditorAccountReferenceType("IBAN")
 
                 .remittanceInformationType("unstructured")
diff --git a/src/test/java/com/ibanity/samples/sandbox/FinancialInstitutionAccountSample.java b/src/test/java/com/ibanity/samples/sandbox/FinancialInstitutionAccountSample.java
index 2ea8ae94..7052607b 100644
--- a/src/test/java/com/ibanity/samples/sandbox/FinancialInstitutionAccountSample.java
+++ b/src/test/java/com/ibanity/samples/sandbox/FinancialInstitutionAccountSample.java
@@ -9,8 +9,8 @@
 import com.ibanity.apis.client.products.xs2a.sandbox.services.FinancialInstitutionAccountsService;
 import com.ibanity.apis.client.services.IbanityService;
 import com.ibanity.samples.helper.SampleHelper;
-import org.iban4j.CountryCode;
-import org.iban4j.Iban;
+import de.speedbanking.iban.IbanRegistry;
+import de.speedbanking.iban.RandomIban;
 
 import static java.time.Instant.parse;
 import java.util.UUID;
@@ -30,7 +30,7 @@ public FinancialInstitutionAccount create(FinancialInstitution financialInstitut
                         .currentBalance(SampleHelper.generateRandomAmount())
                         .currency("EUR")
                         .description("Checking Account")
-                        .reference(Iban.random(CountryCode.BE).toString())
+                        .reference(RandomIban.of(IbanRegistry.BE).toString())
                         .referenceType("IBAN")
                         .product("Easy account")
                         .holderName("John Doe")

From 5e4d09b32a27ddc4e434229bff94a4c292d1e800 Mon Sep 17 00:00:00 2001
From: Markus Spann <spannm@outlook.de>
Date: Fri, 10 Apr 2026 15:45:45 +0100
Subject: [PATCH 5/5] build: define Maven default goal

---
 pom.xml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pom.xml b/pom.xml
index 63431ad3..846d254c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -219,6 +219,8 @@
     </dependencies>
 
     <build>
+        <defaultGoal>clean verify</defaultGoal>
+
         <plugins>
             <plugin>
                 <groupId>org.sonarsource.scanner.maven</groupId>