From 45207471678b39e3fbc7aa1c1f06ea85ef780568 Mon Sep 17 00:00:00 2001
From: Jan S <jpstotz@users.noreply.github.com>
Date: Sun, 23 Feb 2020 14:22:49 +0100
Subject: [PATCH] fix: concurrent access may cause an
 java.lang.ClassCastException in JNodeCache (PR #864)

---
 jadx-gui/src/main/java/jadx/gui/utils/JNodeCache.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/jadx-gui/src/main/java/jadx/gui/utils/JNodeCache.java b/jadx-gui/src/main/java/jadx/gui/utils/JNodeCache.java
index 4d46e2b7..e16ac30b 100644
--- a/jadx-gui/src/main/java/jadx/gui/utils/JNodeCache.java
+++ b/jadx-gui/src/main/java/jadx/gui/utils/JNodeCache.java
@@ -1,7 +1,7 @@
 package jadx.gui.utils;
 
-import java.util.HashMap;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
 
 import jadx.api.JavaClass;
 import jadx.api.JavaField;
@@ -15,7 +15,7 @@ import jadx.gui.treemodel.JNode;
 
 public class JNodeCache {
 
-	private final Map<JavaNode, JNode> cache = new HashMap<>();
+	private final Map<JavaNode, JNode> cache = new ConcurrentHashMap<>();
 
 	public JNode makeFrom(JavaNode javaNode) {
 		if (javaNode == null) {
-- 
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