diff --git a/java/debugger/impl/src/com/intellij/debugger/memory/ui/ClassesTable.java b/java/debugger/impl/src/com/intellij/debugger/memory/ui/ClassesTable.java
index 6de5c7142b70..c722e00f3a6d 100644
--- a/java/debugger/impl/src/com/intellij/debugger/memory/ui/ClassesTable.java
+++ b/java/debugger/impl/src/com/intellij/debugger/memory/ui/ClassesTable.java
@@ -186,7 +186,7 @@ public class ClassesTable extends JBTable implements DataProvider, Disposable {
     releaseMouseListener();
     getEmptyText().setText(text);
 
-    if (getMousePosition() != null) {
+    if (!GraphicsEnvironment.isHeadless() && getMousePosition() != null) {
       setBackground(CLICKABLE_COLOR);
     }