Index: trunk/test/performance/org/openstreetmap/josm/PerformanceTestUtils.java
===================================================================
--- trunk/test/performance/org/openstreetmap/josm/PerformanceTestUtils.java	(revision 17588)
+++ trunk/test/performance/org/openstreetmap/josm/PerformanceTestUtils.java	(revision 17615)
@@ -2,7 +2,15 @@
 package org.openstreetmap.josm;
 
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.Collections;
 
+import org.openstreetmap.josm.data.osm.DataSet;
+import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
+import org.openstreetmap.josm.io.Compression;
+import org.openstreetmap.josm.io.IllegalDataException;
+import org.openstreetmap.josm.io.OsmReader;
 import org.openstreetmap.josm.io.XmlWriter;
 
@@ -14,6 +22,22 @@
  */
 public final class PerformanceTestUtils {
+    /**
+     * The Neubrandenburg data file
+     */
+    public static final String DATA_FILE = "nodist/data/neubrandenburg.osm.bz2";
     private static final int TIMES_WARMUP = 2;
     private static final int TIMES_RUN = 8;
+
+    /**
+     * Parses and returns the Neubrandenburg dataset
+     * @return the Neubrandenburg dataset
+     * @throws IllegalDataException in case of invalid data
+     * @throws IOException in case of I/O error
+     */
+    public static DataSet getNeubrandenburgDataSet() throws IOException, IllegalDataException {
+        try (InputStream in = Compression.getUncompressedFileInputStream(new File(DATA_FILE))) {
+            return OsmReader.parseDataSet(in, NullProgressMonitor.INSTANCE);
+        }
+    }
 
     /**
Index: trunk/test/performance/org/openstreetmap/josm/data/osm/visitor/paint/AbstractMapRendererPerformanceTestParent.java
===================================================================
--- trunk/test/performance/org/openstreetmap/josm/data/osm/visitor/paint/AbstractMapRendererPerformanceTestParent.java	(revision 17588)
+++ trunk/test/performance/org/openstreetmap/josm/data/osm/visitor/paint/AbstractMapRendererPerformanceTestParent.java	(revision 17615)
@@ -18,4 +18,5 @@
 import org.junit.jupiter.api.Timeout;
 import org.openstreetmap.josm.JOSMFixture;
+import org.openstreetmap.josm.PerformanceTestUtils;
 import org.openstreetmap.josm.data.Bounds;
 import org.openstreetmap.josm.data.osm.DataSet;
@@ -75,11 +76,10 @@
         StyledMapRenderer.PREFERENCE_TEXT_ANTIALIASING.put("gasp");
 
+        dsCity = PerformanceTestUtils.getNeubrandenburgDataSet();
         try (InputStream fisR = Files.newInputStream(Paths.get("nodist/data/restriction.osm"));
              InputStream fisM = Files.newInputStream(Paths.get("nodist/data/multipolygon.osm"));
-             InputStream fisC = Compression.getUncompressedFileInputStream(new File("nodist/data/neubrandenburg.osm.bz2"));
              InputStream fisO = Compression.getUncompressedFileInputStream(new File("nodist/data/overpass-download.osm.bz2"));) {
             dsRestriction = OsmReader.parseDataSet(fisR, NullProgressMonitor.INSTANCE);
             dsMultipolygon = OsmReader.parseDataSet(fisM, NullProgressMonitor.INSTANCE);
-            dsCity = OsmReader.parseDataSet(fisC, NullProgressMonitor.INSTANCE);
             dsOverpass = OsmReader.parseDataSet(fisO, NullProgressMonitor.INSTANCE);
         }
Index: trunk/test/performance/org/openstreetmap/josm/data/validation/tests/MapCSSTagCheckerPerformanceTest.java
===================================================================
--- trunk/test/performance/org/openstreetmap/josm/data/validation/tests/MapCSSTagCheckerPerformanceTest.java	(revision 17588)
+++ trunk/test/performance/org/openstreetmap/josm/data/validation/tests/MapCSSTagCheckerPerformanceTest.java	(revision 17615)
@@ -6,12 +6,7 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.RegisterExtension;
+import org.openstreetmap.josm.PerformanceTestUtils;
 import org.openstreetmap.josm.data.osm.DataSet;
-import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
-import org.openstreetmap.josm.io.Compression;
-import org.openstreetmap.josm.io.OsmReader;
 import org.openstreetmap.josm.testutils.JOSMTestRules;
-
-import java.io.File;
-import java.io.InputStream;
 
 /**
@@ -39,7 +34,5 @@
         tagChecker = new MapCSSTagChecker();
         tagChecker.initialize();
-        try (InputStream in = Compression.getUncompressedFileInputStream(new File("nodist/data/neubrandenburg.osm.bz2"))) {
-            dsCity = OsmReader.parseDataSet(in, NullProgressMonitor.INSTANCE);
-        }
+        dsCity = PerformanceTestUtils.getNeubrandenburgDataSet();
     }
 
Index: trunk/test/performance/org/openstreetmap/josm/gui/mappaint/MapRendererPerformanceTest.java
===================================================================
--- trunk/test/performance/org/openstreetmap/josm/gui/mappaint/MapRendererPerformanceTest.java	(revision 17588)
+++ trunk/test/performance/org/openstreetmap/josm/gui/mappaint/MapRendererPerformanceTest.java	(revision 17615)
@@ -10,5 +10,4 @@
 import java.io.File;
 import java.io.IOException;
-import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -44,7 +43,4 @@
 import org.openstreetmap.josm.gui.mappaint.mapcss.Selector;
 import org.openstreetmap.josm.gui.mappaint.styleelement.StyleElement;
-import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
-import org.openstreetmap.josm.io.Compression;
-import org.openstreetmap.josm.io.OsmReader;
 import org.openstreetmap.josm.testutils.JOSMTestRules;
 
@@ -169,9 +165,5 @@
         MapPaintStyleLoader.reloadStyles(defaultStyleIdx);
 
-        try (
-            InputStream fisC = Compression.getUncompressedFileInputStream(new File("nodist/data/neubrandenburg.osm.bz2"));
-        ) {
-            dsCity = OsmReader.parseDataSet(fisC, NullProgressMonitor.INSTANCE);
-        }
+        dsCity = PerformanceTestUtils.getNeubrandenburgDataSet();
     }
 
Index: trunk/test/performance/org/openstreetmap/josm/gui/mappaint/mapcss/MapCSSPerformanceTest.java
===================================================================
--- trunk/test/performance/org/openstreetmap/josm/gui/mappaint/mapcss/MapCSSPerformanceTest.java	(revision 17588)
+++ trunk/test/performance/org/openstreetmap/josm/gui/mappaint/mapcss/MapCSSPerformanceTest.java	(revision 17615)
@@ -13,4 +13,5 @@
 import org.junit.jupiter.api.BeforeAll;
 import org.openstreetmap.josm.JOSMFixture;
+import org.openstreetmap.josm.PerformanceTestUtils;
 import org.openstreetmap.josm.data.Bounds;
 import org.openstreetmap.josm.data.osm.DataSet;
@@ -20,7 +21,5 @@
 import org.openstreetmap.josm.gui.NavigatableComponent;
 import org.openstreetmap.josm.gui.mappaint.MapRendererPerformanceTest;
-import org.openstreetmap.josm.io.Compression;
 import org.openstreetmap.josm.io.IllegalDataException;
-import org.openstreetmap.josm.io.OsmReader;
 
 /**
@@ -37,8 +36,4 @@
     static final String STYLE_FILE = "resources/styles/standard/elemstyles.mapcss";
 
-    /**
-     * The data file to be rendered
-     */
-    static final String DATA_FILE = "nodist/data/neubrandenburg.osm.bz2";
     /* ------------------------ / configuration section  ---------------------------- */
 
@@ -89,6 +84,6 @@
 
     void loadData() throws IllegalDataException, IOException {
-        System.out.print("Loading data file '"+DATA_FILE+"' ...");
-        ds = OsmReader.parseDataSet(Compression.getUncompressedFileInputStream(new File(DATA_FILE)), null);
+        System.out.print("Loading data file '"+PerformanceTestUtils.DATA_FILE+"' ...");
+        ds = PerformanceTestUtils.getNeubrandenburgDataSet();
         System.out.println("DONE");
     }
@@ -116,5 +111,5 @@
         );
         System.out.println("DONE");
-        System.out.println("data file : "+DATA_FILE);
+        System.out.println("data file : "+PerformanceTestUtils.DATA_FILE);
         System.out.println("style file: "+STYLE_FILE);
         System.out.println("");
Index: trunk/test/performance/org/openstreetmap/josm/io/OsmReaderPerformanceTest.java
===================================================================
--- trunk/test/performance/org/openstreetmap/josm/io/OsmReaderPerformanceTest.java	(revision 17588)
+++ trunk/test/performance/org/openstreetmap/josm/io/OsmReaderPerformanceTest.java	(revision 17615)
@@ -30,5 +30,4 @@
 class OsmReaderPerformanceTest {
     private static final int TIMES = 4;
-    private static final String DATA_FILE = "nodist/data/neubrandenburg.osm.bz2";
 
     /**
@@ -65,5 +64,5 @@
             is.reset();
 
-            ds = OsmReader.parseDataSet(decompressBeforeRead ? is : Compression.byExtension(DATA_FILE)
+            ds = OsmReader.parseDataSet(decompressBeforeRead ? is : Compression.byExtension(PerformanceTestUtils.DATA_FILE)
                     .getUncompressedInputStream(is), null);
         }
@@ -73,5 +72,5 @@
 
     private InputStream loadFile(boolean decompressBeforeRead) throws IOException {
-        File file = new File(DATA_FILE);
+        File file = new File(PerformanceTestUtils.DATA_FILE);
         try (InputStream is = decompressBeforeRead ? Compression.getUncompressedFileInputStream(file) : new FileInputStream(file)) {
             ByteArrayOutputStream temporary = new ByteArrayOutputStream();