$ git diff hibernate-core/src/main/java/org/hibernate/cfg/Environment.java
diff --git a/hibernate-core/src/main/java/org/hibernate/cfg/Environment.java b/hibernate-core/src/main/java/org/hibernate/cfg/Environment.java
index 900a9502b5..cb37b06196 100644
--- a/hibernate-core/src/main/java/org/hibernate/cfg/Environment.java
+++ b/hibernate-core/src/main/java/org/hibernate/cfg/Environment.java
@@ -348,7 +348,8 @@ public final class Environment implements AvailableSettings {
public static final String BYTECODE_PROVIDER_NAME_DEFAULT = BYTECODE_PROVIDER_NAME_BYTEBUDDY;
public static BytecodeProvider buildBytecodeProvider(Properties properties) {
- String provider = ConfigurationHelper.getString( BYTECODE_PROVIDER, properties, BYTECODE_PROVIDER_NAME_DEFAULT );
++ String provider = ConfigurationHelper.getString( BYTECODE_PROVIDER, properties, BYTECODE_PROVIDER_NAME_JAVASSIST );
return buildBytecodeProvider( provider );
}