diff --git a/CHANGES.md b/CHANGES.md
index ef7d4f8fba..54f75eeb97 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -27,6 +27,7 @@ Release Notes.
 * Bump up Lombok to v1.18.42 to adopt JDK25 compiling.
 * Add `eclipse-temurin:25-jre` as another base image.
 * Add JDK25 plugin tests for Spring 6.
+* Ignore classes starting with "sun.nio.cs" in bytebuddy due to potential class loading deadlock.
 
 All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/242?closed=1)
 
diff --git a/apm-sniffer/apm-agent/src/main/java/org/apache/skywalking/apm/agent/SkyWalkingAgent.java b/apm-sniffer/apm-agent/src/main/java/org/apache/skywalking/apm/agent/SkyWalkingAgent.java
index 2dd3fe8b38..b0dc55913f 100644
--- a/apm-sniffer/apm-agent/src/main/java/org/apache/skywalking/apm/agent/SkyWalkingAgent.java
+++ b/apm-sniffer/apm-agent/src/main/java/org/apache/skywalking/apm/agent/SkyWalkingAgent.java
@@ -128,6 +128,7 @@ static void installClassTransformer(Instrumentation instrumentation, PluginFinde
                 .or(nameContains(".asm."))
                 .or(nameContains(".reflectasm."))
                 .or(nameStartsWith("sun.reflect"))
+                .or(nameStartsWith("sun.nio.cs"))
                 .or(allSkyWalkingAgentExcludeToolkit())
                 .or(ElementMatchers.isSynthetic()));