diff --git a/numass-client/src/main/java/inr/numass/client/NumassClient.java b/numass-client/src/main/java/inr/numass/client/NumassClient.java
index 7921e931..e3a0fbbf 100644
--- a/numass-client/src/main/java/inr/numass/client/NumassClient.java
+++ b/numass-client/src/main/java/inr/numass/client/NumassClient.java
@@ -16,7 +16,7 @@
 package inr.numass.client;
 
 import hep.dataforge.io.envelopes.DefaultEnvelopeReader;
-import hep.dataforge.io.envelopes.DefaultEnvelopeWriter;
+import hep.dataforge.io.envelopes.DefaultEnvelopeType;
 import hep.dataforge.io.envelopes.Envelope;
 import hep.dataforge.io.envelopes.EnvelopeBuilder;
 import hep.dataforge.io.messages.Responder;
@@ -83,7 +83,7 @@ public class NumassClient implements AutoCloseable, Responder {
     }
 
     private void write(Envelope envelope, OutputStream os) throws IOException {
-        new DefaultEnvelopeWriter().write(os, envelope);
+        DefaultEnvelopeType.instance.getWriter().write(os, envelope);
         os.flush();
     }
 
diff --git a/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8ViewConnection.kt b/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8ViewConnection.kt
index dd3a3968..a9bd51d5 100644
--- a/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8ViewConnection.kt
+++ b/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8ViewConnection.kt
@@ -188,7 +188,7 @@ class PKT8ViewConnection : DeviceViewConnection<PKT8Device>(), MeasurementListen
                         plotFrame.add(plottable)
                     }
             if (device.meta().hasMeta("plotConfig")) {
-                plottables.applyConfig(device.meta().getMeta("plotConfig"))
+                plottables.configure(device.meta().getMeta("plotConfig"))
                 plottables.setMaxItems(1000)
                 plottables.setPrefItems(400)
             }
diff --git a/numass-viewer/src/main/kotlin/inr/numass/viewer/NumassLoaderView.kt b/numass-viewer/src/main/kotlin/inr/numass/viewer/NumassLoaderView.kt
index 414a3320..ba5d6bc3 100644
--- a/numass-viewer/src/main/kotlin/inr/numass/viewer/NumassLoaderView.kt
+++ b/numass-viewer/src/main/kotlin/inr/numass/viewer/NumassLoaderView.kt
@@ -277,7 +277,7 @@ class NumassLoaderView : View() {
                 val count = NumassAnalyzer.countInWindow(getSpectrum(point), loChannel, upChannel);
                 val seconds = point.length.toMillis() / 1000.0;
                 spectrumPlot.setProgress(-1.0);
-                ValueMap(
+                ValueMap.ofMap(
                         mapOf(
                                 XYAdapter.X_AXIS to point.voltage,
                                 XYAdapter.Y_AXIS to (count / seconds),
diff --git a/numass-viewer/src/main/kotlin/inr/numass/viewer/test/JFCTest.kt b/numass-viewer/src/main/kotlin/inr/numass/viewer/test/JFCTest.kt
index 880e0754..3dcaa234 100644
--- a/numass-viewer/src/main/kotlin/inr/numass/viewer/test/JFCTest.kt
+++ b/numass-viewer/src/main/kotlin/inr/numass/viewer/test/JFCTest.kt
@@ -22,7 +22,7 @@ class JFCTest : View("My View") {
         action {
 
             data.fillData(
-                    (1..1000).map { ValueMap(arrayOf(XYAdapter.X_VALUE_KEY, XYAdapter.Y_VALUE_KEY), it, rnd.nextDouble()) }
+                    (1..1000).map { ValueMap.of(arrayOf(XYAdapter.X_VALUE_KEY, XYAdapter.Y_VALUE_KEY), it, rnd.nextDouble()) }
             )
             plot.add(data)
         }