diff --git a/java/ws-server/src/main/docker/Dockerfile b/java/ws-server/src/main/docker/Dockerfile
index d69bde52..6a9005c0 100644
--- a/java/ws-server/src/main/docker/Dockerfile
+++ b/java/ws-server/src/main/docker/Dockerfile
@@ -3,7 +3,7 @@ FROM amazoncorretto:17-alpine3.21
 COPY ws-server /ws-server
 WORKDIR /ws-server
 
-ENV JAVA_DEFAULT_OPTS=--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED
+ENV JAVA_DEFAULT_OPTS="--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED"
 
 EXPOSE 8099
 ENTRYPOINT ["/bin/sh", "-c", "java ${JAVA_DEFAULT_OPTS} ${JAVA_OPTS}  -cp . -jar timebase-ws-server-*.jar"]
diff --git a/java/ws-server/src/main/java/com/epam/deltix/tbwg/webapp/utils/json/CustomEncodingJsonRawMessagePrinter.java b/java/ws-server/src/main/java/com/epam/deltix/tbwg/webapp/utils/json/CustomEncodingJsonRawMessagePrinter.java
index c3f04fd7..3a233773 100644
--- a/java/ws-server/src/main/java/com/epam/deltix/tbwg/webapp/utils/json/CustomEncodingJsonRawMessagePrinter.java
+++ b/java/ws-server/src/main/java/com/epam/deltix/tbwg/webapp/utils/json/CustomEncodingJsonRawMessagePrinter.java
@@ -53,7 +53,7 @@ protected boolean appendArrayField(ArrayDataType type, ReadableValue udec, Strin
                         appendSeparator(sb);
                     else
                         needSepa = true;
-                    sb.append(rv.getString());
+                    appendString(String.valueOf(rv.getLong()), sb);
                 } catch (NullValueException e) {
                     sb.append("null");
                 }
diff --git a/web/frontend/src/app/shared/utils/digitGrouping.ts b/web/frontend/src/app/shared/utils/digitGrouping.ts
index 7d8b1d05..eb6436bd 100644
--- a/web/frontend/src/app/shared/utils/digitGrouping.ts
+++ b/web/frontend/src/app/shared/utils/digitGrouping.ts
@@ -1,6 +1,6 @@
 export function formatArray(array: any[], locale: string) {
   return array.map(item => {
-    if (['number', 'string'].includes(typeof item) && Math.abs(item) >= 1000) {
+    if (Math.abs(item) >= 1000 && Math.abs(item) <= Number.MAX_SAFE_INTEGER) {
       return parseFloat(item).toLocaleString(locale);
     } else if (item && typeof item === 'object') {
       return formatObject(item, locale);
@@ -16,7 +16,7 @@ export function formatObject(object: object, locale: string) {
   return Object.fromEntries(
     Object.entries(object).map(([key, value]) => {
       let formattedValue = value;
-      if (['number', 'string'].includes(typeof value) && Math.abs(value) >= 1000) {
+      if (Math.abs(value) >= 1000 && Math.abs(value) <= Number.MAX_SAFE_INTEGER) {
         formattedValue = parseFloat(value).toLocaleString(locale);
       } else if (value && typeof value === 'object') {
         formattedValue = formatObject(value, locale);