Index: applications/editors/josm/plugins/photo_geotagging/test/unit/org/openstreetmap/josm/plugins/photo_geotagging/ExifGPSTaggerTest.java
===================================================================
--- applications/editors/josm/plugins/photo_geotagging/test/unit/org/openstreetmap/josm/plugins/photo_geotagging/ExifGPSTaggerTest.java	(revision 31994)
+++ applications/editors/josm/plugins/photo_geotagging/test/unit/org/openstreetmap/josm/plugins/photo_geotagging/ExifGPSTaggerTest.java	(revision 31994)
@@ -0,0 +1,35 @@
+package org.openstreetmap.josm.plugins.photo_geotagging;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.util.Date;
+
+import org.apache.commons.imaging.Imaging;
+import org.apache.commons.imaging.formats.jpeg.JpegImageMetadata;
+import org.apache.commons.imaging.formats.jpeg.exif.ExifRewriter;
+import org.apache.commons.imaging.formats.tiff.TiffImageMetadata;
+import org.apache.commons.imaging.formats.tiff.write.TiffOutputSet;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+import org.openstreetmap.josm.TestUtils;
+
+public class ExifGPSTaggerTest {
+
+    @Rule
+    public final TemporaryFolder tempFolder = new TemporaryFolder();
+
+    @Test
+    public void testTicket11757() throws Exception {
+        final File in = new File(TestUtils.getTestDataRoot(), "_DSC1234.jpg");
+        ExifGPSTagger.setExifGPSTag(in, tempFolder.newFile(), 12, 34, new Date(), 12.34, Math.E, Math.PI);
+    }
+
+    @Test
+    public void testTicket11757WriteWithoutChange() throws Exception {
+        final File in = new File(TestUtils.getTestDataRoot(), "_DSC1234.jpg");
+        final TiffImageMetadata exif = ((JpegImageMetadata) Imaging.getMetadata(in)).getExif();
+        final TiffOutputSet outputSet = exif.getOutputSet();
+        new ExifRewriter().updateExifMetadataLossless(in, new ByteArrayOutputStream(), outputSet);
+    }
+}