@@ -, +, @@ 
---
 .../jmeter/report/dashboard/JsonizerVisitor.java      |  5 +++--
 .../report/processor/ErrorsSummaryConsumer.java       | 11 +++++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)
--- a/src/core/src/main/java/org/apache/jmeter/report/dashboard/JsonizerVisitor.java	
+++ a/src/core/src/main/java/org/apache/jmeter/report/dashboard/JsonizerVisitor.java	
@@ -20,13 +20,14 @@ package org.apache.jmeter.report.dashboard;
 import java.util.HashMap;
 import java.util.Map;
 
-import org.apache.commons.text.StringEscapeUtils;
 import org.apache.jmeter.report.core.JsonUtil;
 import org.apache.jmeter.report.processor.ListResultData;
 import org.apache.jmeter.report.processor.MapResultData;
 import org.apache.jmeter.report.processor.ResultData;
 import org.apache.jmeter.report.processor.ResultDataVisitor;
 import org.apache.jmeter.report.processor.ValueResultData;
+
+import com.fasterxml.jackson.core.io.JsonStringEncoder;
 /**
  * The class JsonizerVisitor provides a visitor that can get json-like string
  * from ResultData.
@@ -96,7 +97,7 @@ public class JsonizerVisitor implements ResultDataVisitor<String> {
             Object value = valueResult.getValue();
             result = String.valueOf(value);
             if (value instanceof String) {
-                result = '"' + StringEscapeUtils.escapeEcmaScript(result.replace('\"', '\'')) + '"';
+                result = '"' + new String(JsonStringEncoder.getInstance().quoteAsString(result)) + '"';
             }
         }
         return result;
--- a/src/core/src/main/java/org/apache/jmeter/report/processor/ErrorsSummaryConsumer.java	
+++ a/src/core/src/main/java/org/apache/jmeter/report/processor/ErrorsSummaryConsumer.java	
@@ -24,6 +24,8 @@ import org.apache.jmeter.report.utils.MetricUtils;
 import org.apache.jmeter.samplers.SampleSaveConfiguration;
 import org.apache.jmeter.util.JMeterUtils;
 
+import com.fasterxml.jackson.core.io.JsonStringEncoder;
+
 /**
  * <p>
  * The class ErrorSummaryConsumer provides a consumer that calculates error
@@ -89,7 +91,7 @@ public class ErrorsSummaryConsumer extends AbstractSummaryConsumer<Long> {
         String responseCode = sample.getResponseCode();
         String responseMessage = sample.getResponseMessage();
         String key = responseCode + (!StringUtils.isEmpty(responseMessage) ?
-                 "/" + StringEscapeUtils.escapeJson(StringEscapeUtils.escapeHtml4(responseMessage)) : "");
+                 "/" + escapeJson(responseMessage) : "");
         if (MetricUtils.isSuccessCode(responseCode) ||
                 (StringUtils.isEmpty(responseCode) &&
                         !StringUtils.isEmpty(sample.getFailureMessage()))) {
@@ -97,12 +99,17 @@ public class ErrorsSummaryConsumer extends AbstractSummaryConsumer<Long> {
             if (ASSERTION_RESULTS_FAILURE_MESSAGE) {
                 String msg = sample.getFailureMessage();
                 if (!StringUtils.isEmpty(msg)) {
-                    key = StringEscapeUtils.escapeJson(StringEscapeUtils.escapeHtml4(msg));
+                    key = escapeJson(msg);
                 }
             }
         }
         return key;
     }
+
+    private static String escapeJson(String responseMessage) {
+        return new String(JsonStringEncoder.getInstance().quoteAsString(StringEscapeUtils.escapeHtml4(responseMessage)));
+    }
+
     /*
      * (non-Javadoc)
      *
--