diff --git a/.github/workflows/pullrequest.yaml b/.github/workflows/pullrequest.yaml
new file mode 100644
index 00000000..e880289b
--- /dev/null
+++ b/.github/workflows/pullrequest.yaml
@@ -0,0 +1,35 @@
+# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: pull request build
+
+on:
+  pull_request:
+    branches: [ "develop" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [ '8' , '11', '17' , '21']
+    name: build with Java ${{ matrix.Java }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Java
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ matrix.Java }}
+          distribution: 'temurin'
+          cache: maven
+      - name: run headless maven build
+        uses: coactions/setup-xvfb@v1
+        with:
+          run: mvn -B clean verify javadoc:javadoc
+          options: -screen 0 1280x1024x16
diff --git a/src/test/java/com/tagtraum/perf/gcviewer/exp/SummaryDataWriterTest.java b/src/test/java/com/tagtraum/perf/gcviewer/exp/SummaryDataWriterTest.java
index ec2ecd20..f0a03ea5 100644
--- a/src/test/java/com/tagtraum/perf/gcviewer/exp/SummaryDataWriterTest.java
+++ b/src/test/java/com/tagtraum/perf/gcviewer/exp/SummaryDataWriterTest.java
@@ -7,6 +7,7 @@
 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.text.DecimalFormat;
 import java.text.NumberFormat;
 
 import com.tagtraum.perf.gcviewer.exp.impl.SummaryDataWriter;
@@ -19,7 +20,6 @@
 import com.tagtraum.perf.gcviewer.model.GCModel;
 import com.tagtraum.perf.gcviewer.model.GcResourceFile;
 import com.tagtraum.perf.gcviewer.util.MemoryFormat;
-
 import org.hamcrest.Matchers;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -170,11 +170,14 @@ public void testWriteWithZGCPhases() throws IOException {
 
         String csv = output.toString();
 
-        assertThat("pausePercentile75th", csv, Matchers.containsString("pausePercentile75th; 0,000934; s"));
-        assertThat("gcPausePercentile95th", csv, Matchers.containsString("gcPausePercentile95th; 0,000934; s"));
+        // use locale specific decimalSeparator to check, if the right values are present
+        char decimalSeparator = new DecimalFormat().getDecimalFormatSymbols().getDecimalSeparator();
+
+        assertThat("pausePercentile75th", csv, Matchers.containsString("pausePercentile75th; 0" + decimalSeparator + "000934; s"));
+        assertThat("gcPausePercentile95th", csv, Matchers.containsString("gcPausePercentile95th; 0" + decimalSeparator + "000934; s"));
         assertThat("pauseCount", csv, Matchers.containsString("pauseCount; 1; -"));
         assertThat("gcPhaseCount", csv, Matchers.containsString("gcPhaseCount; 3; -"));
-        assertThat("gcPhaseAverage", csv, Matchers.containsString("gcPhaseAverage; 0,000311; s"));
-        assertThat("gcPhasePercentile99th", csv, Matchers.containsString("gcPhasePercentile99th; 0,000499; s"));
+        assertThat("gcPhaseAverage", csv, Matchers.containsString("gcPhaseAverage; 0" + decimalSeparator + "000311; s"));
+        assertThat("gcPhasePercentile99th", csv, Matchers.containsString("gcPhasePercentile99th; 0" + decimalSeparator + "000499; s"));
     }
 }