From c6a194dcf933dd7a4e2bf6b92bcb417957aba765 Mon Sep 17 00:00:00 2001
From: jeff
Date: Tue, 10 Feb 2015 22:23:12 -0500
Subject: ignore harmless exceptions I can't fix

fyi, it's really hard to test this fix because the exception is not generally reproducable
---
 src/cuchaz/enigma/ExceptionIgnorer.java | 24 ++++++++++++++++++++++++
 src/cuchaz/enigma/gui/Gui.java          |  9 ++++++---
 2 files changed, 30 insertions(+), 3 deletions(-)
 create mode 100644 src/cuchaz/enigma/ExceptionIgnorer.java

diff --git a/src/cuchaz/enigma/ExceptionIgnorer.java b/src/cuchaz/enigma/ExceptionIgnorer.java
new file mode 100644
index 0000000..37c67da
--- /dev/null
+++ b/src/cuchaz/enigma/ExceptionIgnorer.java
@@ -0,0 +1,24 @@
+package cuchaz.enigma;
+
+public class ExceptionIgnorer {
+
+	public static boolean shouldIgnore(Throwable t) {
+		
+		// is this that pesky concurrent access bug in the highlight painter system?
+		// (ancient ui code is ancient)
+		if (t instanceof ArrayIndexOutOfBoundsException) {
+			StackTraceElement[] stackTrace = t.getStackTrace();
+			if (stackTrace.length > 1) {
+			
+				// does this stack frame match javax.swing.text.DefaultHighlighter.paint() ?
+				StackTraceElement frame = stackTrace[1];
+				if (frame.getClassName().equals("javax.swing.text.DefaultHighlighter") && frame.getMethodName().equals("paint")) {
+					return true;
+				}
+			}
+		}
+		
+		return false;
+	}
+	
+}
diff --git a/src/cuchaz/enigma/gui/Gui.java b/src/cuchaz/enigma/gui/Gui.java
index 187ef5b..00cff59 100644
--- a/src/cuchaz/enigma/gui/Gui.java
+++ b/src/cuchaz/enigma/gui/Gui.java
@@ -70,6 +70,7 @@ import jsyntaxpane.DefaultSyntaxKit;
 import com.google.common.collect.Lists;
 
 import cuchaz.enigma.Constants;
+import cuchaz.enigma.ExceptionIgnorer;
 import cuchaz.enigma.analysis.BehaviorReferenceTreeNode;
 import cuchaz.enigma.analysis.ClassImplementationsTreeNode;
 import cuchaz.enigma.analysis.ClassInheritanceTreeNode;
@@ -147,9 +148,11 @@ public class Gui {
 			CrashDialog.init(m_frame);
 			Thread.setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler() {
 				@Override
-				public void uncaughtException(Thread thread, Throwable ex) {
-					ex.printStackTrace(System.err);
-					CrashDialog.show(ex);
+				public void uncaughtException(Thread thread, Throwable t) {
+					t.printStackTrace(System.err);
+					if (!ExceptionIgnorer.shouldIgnore(t)) {
+						CrashDialog.show(t);
+					}
 				}
 			});
 		}
-- 
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