diff --git a/check-publication.sh b/check-publication.sh
new file mode 100755
index 0000000..adf3557
--- /dev/null
+++ b/check-publication.sh
@@ -0,0 +1,27 @@
+read -p "version to check > " version
+echo "entered version = $version"
+url="https://repo1.maven.org/maven2/me/bvn13/sdk/android/gpx/GpxAndroidSdk/${version}/"
+echo "checking $url"
+
+check(){
+  echo $(curl -sL -w "%{http_code}\\n" "$url" -o /dev/null)
+}
+
+count=0
+until [ $count -gt 1000 ] || [ "$(check)" == "200" ]
+do
+  code=$(check)
+  echo "try $count - response $code"
+  ping -c 2 127.0.0.1 > /dev/null
+  count=$((count+1))
+done
+
+code=$(check)
+if [ "$code" == "200" ]
+then
+  echo "$code is 200"
+  notify-send -a MAVEN -t 500 'GpxAndroidSdk' "version $version is published"
+else
+  echo "$code is not 200"
+  notify-send -a MAVEN -t 500 -u critical 'GpxAndroidSdk' "failed to publish $version version"
+fi
\ No newline at end of file
diff --git a/src/main/kotlin/me/bvn13/sdk/android/gpx/GpxWriter.kt b/src/main/kotlin/me/bvn13/sdk/android/gpx/GpxWriter.kt
index 67cc664..38095a1 100644
--- a/src/main/kotlin/me/bvn13/sdk/android/gpx/GpxWriter.kt
+++ b/src/main/kotlin/me/bvn13/sdk/android/gpx/GpxWriter.kt
@@ -195,7 +195,7 @@ fun TrksegType.toXmlString() = """
     </trkseg>
 """.trim().removeEmptyStrings()
 
-fun List<WptType>.toXmlString(nodeName: String?) = this.joinToString(prefix = "\n", postfix = "", separator = "") {
+fun List<WptType>.toXmlString(nodeName: String?) = this.joinToString(prefix = "\n", postfix = "", separator = "\n") {
     it.toXmlString(nodeName)
 }
 
diff --git a/src/test/kotlin/me/bvn13/sdk/android/gpx/GpxWriterTest.kt b/src/test/kotlin/me/bvn13/sdk/android/gpx/GpxWriterTest.kt
index ce1807e..21a683f 100644
--- a/src/test/kotlin/me/bvn13/sdk/android/gpx/GpxWriterTest.kt
+++ b/src/test/kotlin/me/bvn13/sdk/android/gpx/GpxWriterTest.kt
@@ -277,6 +277,49 @@ class GpxWriterTest {
                     trkseg = listOf(
                         TrksegType(
                             listOf(
+                                WptType(
+                                    lat = 14.64736838389662,
+                                    lon = 7.93212890625,
+                                    ele = 10.toDouble(),
+                                    time = OffsetDateTime.now(clock),
+                                    magvar = 3.toDouble(),
+                                    geoidheight = 45.toDouble(),
+                                    name = "test point 1",
+                                    cmt = "comment 1",
+                                    desc = "description of point 1",
+                                    link = listOf(
+                                        LinkType(
+                                            href = "http://link-to.site.href",
+                                            text = "text",
+                                            type = "hyperlink"
+                                        ),
+                                        LinkType(
+                                            href = "http://link2-to.site.href",
+                                            text = "text2",
+                                            type = "hyperlink2"
+                                        )
+                                    ),
+                                    src = "source 1",
+                                    sym = "sym 1",
+                                    type = "type 1",
+                                    fix = FixType.DGPS,
+                                    sat = 1,
+                                    hdop = 55.toDouble(),
+                                    vdop = 66.toDouble(),
+                                    pdop = 77.toDouble(),
+                                    ageofgpsdata = 44,
+                                    dgpsid = 88,
+                                    extensions = listOf(
+                                        ExtensionType(
+                                            "extension1",
+                                            parameters = mapOf(Pair("first", "second"), Pair("third", "fours"))
+                                        ),
+                                        ExtensionType(
+                                            "extension2",
+                                            parameters = mapOf(Pair("aa", "bb"), Pair("cc", "dd"))
+                                        )
+                                    )
+                                ),
                                 WptType(
                                     lat = 14.64736838389662,
                                     lon = 7.93212890625,
@@ -460,6 +503,37 @@ class GpxWriterTest {
             <extension2 aa="bb" cc="dd"></extension2>
             </extensions>
             </trkpt>
+            <trkpt lat="14.64736838389662" lon="7.93212890625">
+            <ele>10.0</ele>
+            <time>2022-09-24T15:04:00+03:00</time>
+            <magvar>3.0</magvar>
+            <geoidheight>45.0</geoidheight>
+            <name>test point 1</name>
+            <cmt>comment 1</cmt>
+            <desc>description of point 1</desc>
+            <src>source 1</src>
+            <link href="http://link-to.site.href">
+            <text>text</text>
+            <type>hyperlink</type>
+            </link>
+            <link href="http://link2-to.site.href">
+            <text>text2</text>
+            <type>hyperlink2</type>
+            </link>
+            <sym>sym 1</sym>
+            <type>type 1</type>
+            <fix>dgps</fix>
+            <sat>1</sat>
+            <hdop>55.0</hdop>
+            <vdop>66.0</vdop>
+            <pdop>77.0</pdop>
+            <ageofgpsdata>44</ageofgpsdata>
+            <dgpsid>88</dgpsid>
+            <extensions>
+            <extension1 first="second" third="fours"></extension1>
+            <extension2 aa="bb" cc="dd"></extension2>
+            </extensions>
+            </trkpt>
             </trkseg>
             </trk>
             </gpx>