From 8aa3aa1bb314f5d94416a9a4de6345ed18899f2f Mon Sep 17 00:00:00 2001
From: "Egor.Ushakov" <egor.ushakov@jetbrains.com>
Date: Thu, 4 Sep 2014 19:23:57 +0400
Subject: [PATCH] IDEA-129492 Throwable at
 com.intellij.debugger.engine.SuspendContextImpl.a

---
 .../src/com/intellij/debugger/engine/JavaValueModifier.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/java/debugger/impl/src/com/intellij/debugger/engine/JavaValueModifier.java b/java/debugger/impl/src/com/intellij/debugger/engine/JavaValueModifier.java
index 456985d1f3e0..5aa037191c17 100644
--- a/java/debugger/impl/src/com/intellij/debugger/engine/JavaValueModifier.java
+++ b/java/debugger/impl/src/com/intellij/debugger/engine/JavaValueModifier.java
@@ -100,10 +100,12 @@ public class JavaValueModifier extends XValueModifier {
   @Override
   public void setValue(@NotNull String expression, @NotNull XModificationCallback callback) {
     final NodeDescriptorImpl descriptor = myJavaValue.getDescriptor();
-    if (!(descriptor instanceof ValueDescriptorImpl)) {
+    if(!((ValueDescriptorImpl)descriptor).canSetValue()) {
       return;
     }
-    if(!((ValueDescriptorImpl)descriptor).canSetValue()) {
+
+    if (myJavaValue.getEvaluationContext().getSuspendContext().isResumed()) {
+      callback.errorOccurred(DebuggerBundle.message("error.context.has.changed"));
       return;
     }