diff --git a/java/server/pom.xml b/java/server/pom.xml
index 238c2a8..d99ffda 100644
--- a/java/server/pom.xml
+++ b/java/server/pom.xml
@@ -1,190 +1,190 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
 
-    <groupId>org.softwareheritage.graph</groupId>
-    <artifactId>swh-graph</artifactId>
-    <version>${git.closest.tag.name}</version>
+  <groupId>org.softwareheritage.graph</groupId>
+  <artifactId>swh-graph</artifactId>
+  <version>${git.closest.tag.name}</version>
 
-    <name>swh-graph</name>
-    <url>https://forge.softwareheritage.org/source/swh-graph/</url>
+  <name>swh-graph</name>
+  <url>https://forge.softwareheritage.org/source/swh-graph/</url>
 
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.release>11</maven.compiler.release>
-    </properties>
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.release>11</maven.compiler.release>
+  </properties>
 
-    <dependencies>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
-        </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.11</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest</artifactId>
-            <version>2.1</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>io.javalin</groupId>
-            <artifactId>javalin</artifactId>
-            <version>3.0.0</version>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-simple</artifactId>
-            <version>1.7.26</version>
-        </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>2.9.8</version>
-        </dependency>
-        <dependency>
-            <groupId>it.unimi.dsi</groupId>
-            <artifactId>webgraph-big</artifactId>
-            <version>3.5.1</version>
-        </dependency>
-        <dependency>
-            <groupId>it.unimi.dsi</groupId>
-            <artifactId>fastutil</artifactId>
-            <version>8.2.2</version>
-        </dependency>
-        <dependency>
-            <groupId>com.martiansoftware</groupId>
-            <artifactId>jsap</artifactId>
-            <version>2.1</version>
-        </dependency>
-        <dependency>
-            <groupId>net.sf.py4j</groupId>
-            <artifactId>py4j</artifactId>
-            <version>0.10.8.1</version>
-        </dependency>
-    </dependencies>
+  <dependencies>
+    <dependency>
+      <groupId>ch.qos.logback</groupId>
+      <artifactId>logback-classic</artifactId>
+      <version>1.2.3</version>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.11</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.hamcrest</groupId>
+      <artifactId>hamcrest</artifactId>
+      <version>2.1</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>io.javalin</groupId>
+      <artifactId>javalin</artifactId>
+      <version>3.0.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <version>1.7.26</version>
+    </dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+      <version>2.9.8</version>
+    </dependency>
+    <dependency>
+      <groupId>it.unimi.dsi</groupId>
+      <artifactId>webgraph-big</artifactId>
+      <version>3.5.1</version>
+    </dependency>
+    <dependency>
+      <groupId>it.unimi.dsi</groupId>
+      <artifactId>fastutil</artifactId>
+      <version>8.2.2</version>
+    </dependency>
+    <dependency>
+      <groupId>com.martiansoftware</groupId>
+      <artifactId>jsap</artifactId>
+      <version>2.1</version>
+    </dependency>
+    <dependency>
+      <groupId>net.sf.py4j</groupId>
+      <artifactId>py4j</artifactId>
+      <version>0.10.8.1</version>
+    </dependency>
+  </dependencies>
 
-    <build>
-        <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
-            <plugins>
-                <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
-                <plugin>
-                    <artifactId>maven-clean-plugin</artifactId>
-                    <version>3.1.0</version>
-                </plugin>
-                <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
-                <plugin>
-                    <artifactId>maven-resources-plugin</artifactId>
-                    <version>3.0.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-compiler-plugin</artifactId>
-                    <version>3.8.0</version>
-                    <configuration>
-                        <compilerArgs>
-                            <arg>-verbose</arg>
-                            <arg>-Xlint:all</arg>
-                        </compilerArgs>
-                    </configuration>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-surefire-plugin</artifactId>
-                    <version>2.22.1</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-jar-plugin</artifactId>
-                    <version>3.0.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-install-plugin</artifactId>
-                    <version>2.5.2</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-deploy-plugin</artifactId>
-                    <version>2.8.2</version>
-                </plugin>
-                <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
-                <plugin>
-                    <artifactId>maven-site-plugin</artifactId>
-                    <version>3.7.1</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-project-info-reports-plugin</artifactId>
-                    <version>3.0.0</version>
-                </plugin>
-                <plugin>
-                    <artifactId>maven-assembly-plugin</artifactId>
-                    <configuration>
-                        <archive>
-                            <manifest>
-                                <mainClass>org.softwareheritage.graph.App</mainClass>
-                            </manifest>
-                        </archive>
-                        <descriptorRefs>
-                            <descriptorRef>jar-with-dependencies</descriptorRef>
-                        </descriptorRefs>
-                        <appendAssemblyId>false</appendAssemblyId>
-                    </configuration>
-                    <executions>
-                        <execution>
-                            <id>make-assembly</id> <!-- this is used for inheritance merges -->
-                            <phase>package</phase> <!-- bind to the packaging phase -->
-                            <goals>
-                                <goal>single</goal>
-                            </goals>
-                        </execution>
-                    </executions>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-        <plugins>
-          <plugin>
-            <groupId>pl.project13.maven</groupId>
-            <artifactId>git-commit-id-plugin</artifactId>
-            <version>3.0.1</version>
-            <executions>
-              <execution>
-                <id>get-the-git-infos</id>
-                <goals>
-                  <goal>revision</goal>
-                </goals>
-                <phase>initialize</phase>
-              </execution>
-            </executions>
-            <configuration>
-                <verbose>true</verbose>
-                <offline>true</offline>
-                <useNativeGit>true</useNativeGit>
-                <gitDescribe>
-                  <always>true</always>
-                  <match>v*</match>
-                </gitDescribe>
-                <replacementProperties>
-                  <replacementProperty>
-                    <property>git.closest.tag.name</property>
-                    <token>^v</token>
-                    <value></value>
-                    <regex>true</regex>
-                  </replacementProperty>
-                </replacementProperties>
-            </configuration>
-          </plugin>
-        </plugins>
-    </build>
-    <reporting>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.1.1</version>
-            </plugin>
-        </plugins>
-    </reporting>
+  <build>
+    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+      <plugins>
+        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+        <plugin>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
+        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+        <plugin>
+          <artifactId>maven-resources-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.8.0</version>
+          <configuration>
+            <compilerArgs>
+              <arg>-verbose</arg>
+              <arg>-Xlint:all</arg>
+            </compilerArgs>
+          </configuration>
+        </plugin>
+        <plugin>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>2.22.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>2.5.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>2.8.2</version>
+        </plugin>
+        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+        <plugin>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.7.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.0.0</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-assembly-plugin</artifactId>
+          <configuration>
+            <archive>
+              <manifest>
+                <mainClass>org.softwareheritage.graph.App</mainClass>
+              </manifest>
+            </archive>
+            <descriptorRefs>
+              <descriptorRef>jar-with-dependencies</descriptorRef>
+            </descriptorRefs>
+            <appendAssemblyId>false</appendAssemblyId>
+          </configuration>
+          <executions>
+            <execution>
+              <id>make-assembly</id> <!-- this is used for inheritance merges -->
+              <phase>package</phase> <!-- bind to the packaging phase -->
+              <goals>
+                <goal>single</goal>
+              </goals>
+            </execution>
+          </executions>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+    <plugins>
+      <plugin>
+        <groupId>pl.project13.maven</groupId>
+        <artifactId>git-commit-id-plugin</artifactId>
+        <version>3.0.1</version>
+        <executions>
+          <execution>
+            <id>get-the-git-infos</id>
+            <goals>
+              <goal>revision</goal>
+            </goals>
+            <phase>initialize</phase>
+          </execution>
+        </executions>
+        <configuration>
+          <verbose>true</verbose>
+          <offline>true</offline>
+          <useNativeGit>true</useNativeGit>
+          <gitDescribe>
+            <always>true</always>
+            <match>v*</match>
+          </gitDescribe>
+          <replacementProperties>
+            <replacementProperty>
+              <property>git.closest.tag.name</property>
+              <token>^v</token>
+              <value></value>
+              <regex>true</regex>
+            </replacementProperty>
+          </replacementProperties>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+  <reporting>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-javadoc-plugin</artifactId>
+        <version>3.1.1</version>
+      </plugin>
+    </plugins>
+  </reporting>
 </project>