diff --git a/build.gradle b/build.gradle
index c11a5cd..dac2cab 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,7 +3,7 @@ plugins {
   id "org.openstreetmap.josm" version "0.8.2"
 }
 
-sourceCompatibility = '1.8'
+sourceCompatibility = '11'
 
 sourceSets {
   main {
@@ -23,10 +23,11 @@ archivesBaseName = 'fieldpapers'
 josm {
   version = '0.5.0'
   i18n {
-      pathTransformer = getPathTransformer("github.com/fieldpapers/josm-fieldpapers/blob")
+      pathTransformer = getPathTransformer(project.projectDir, "github.com/fieldpapers/josm-fieldpapers/blob")
   }
   manifest {
     oldVersionDownloadLink 10273, 'v0.4.2', new URL('https://github.com/floscher/josm-fieldpapers/releases/download/v0.4.2/fieldpapers.jar')
+    oldVersionDownloadLink 14140, 'v0.5.0', new URL('https://github.com/fieldpapers/josm-fieldpapers/releases/download/v0.5.0/fieldpapers.jar')
   }
 }
 
@@ -39,4 +40,4 @@ tasks.withType(JavaCompile) {
     "-Xlint:all",
     "-Xlint:-serial",
   ]
-}
\ No newline at end of file
+}
diff --git a/gradle.properties b/gradle.properties
index c149782..b2cfa32 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,8 +5,8 @@ plugin.icon=images/preferences/fieldpapers.png
 plugin.link=http://wiki.openstreetmap.org/index.php/JOSM/Plugins/FieldPapers
 # Minimum required JOSM version to run this plugin, choose the lowest version possible that is compatible.
 # You can check if the plugin compiles against this version by executing `./gradlew minJosmVersionClasses`.
-plugin.main.version=14140
+plugin.main.version=19044
 # Version of JOSM against which the plugin is compiled
 # Please check, if the specified version is available for download from https://josm.openstreetmap.de/download/ .
 # If not, choose the next higher number that is available, or the gradle build will break.
-plugin.compile.version=14178
+plugin.compile.version=19048
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 7a3265e..1353677 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index b10568f..df5ca3a 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionSha256Sum=5b9c5eb3f9fc2c94abaea57d90bd78747ca117ddbbf96c859d3741181a12bf2a
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
diff --git a/src/org/openstreetmap/josm/plugins/fieldpapers/FieldPapersAddLayerAction.java b/src/org/openstreetmap/josm/plugins/fieldpapers/FieldPapersAddLayerAction.java
index 2f11f7d..499d935 100644
--- a/src/org/openstreetmap/josm/plugins/fieldpapers/FieldPapersAddLayerAction.java
+++ b/src/org/openstreetmap/josm/plugins/fieldpapers/FieldPapersAddLayerAction.java
@@ -8,15 +8,15 @@
 import java.io.InputStream;
 import java.net.URL;
 
-import javax.json.Json;
-import javax.json.JsonArray;
-import javax.json.JsonObject;
-import javax.json.JsonReader;
-import javax.json.stream.JsonParsingException;
 import javax.swing.JLabel;
 import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 
+import jakarta.json.Json;
+import jakarta.json.JsonArray;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonReader;
+import jakarta.json.stream.JsonParsingException;
 import org.openstreetmap.josm.actions.JosmAction;
 import org.openstreetmap.josm.data.Bounds;
 import org.openstreetmap.josm.data.coor.LatLon;