From 14a2247a90954b891b6ff3a4986b7e7e1f0b0797 Mon Sep 17 00:00:00 2001
From: "Jesse N. Glick" <jglick@apache.org>
Date: Mon, 1 Oct 2007 21:35:46 +0000
Subject: [PATCH] #43398: always print stack trace for non-BuildException's.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@581076 13f79535-47bb-0310-9956-ffa450edef68
---
 src/main/org/apache/tools/ant/DefaultLogger.java | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/main/org/apache/tools/ant/DefaultLogger.java b/src/main/org/apache/tools/ant/DefaultLogger.java
index 4046cf41c..05687c730 100644
--- a/src/main/org/apache/tools/ant/DefaultLogger.java
+++ b/src/main/org/apache/tools/ant/DefaultLogger.java
@@ -149,6 +149,15 @@ public class DefaultLogger implements BuildLogger {
             message.append(getBuildFailedMessage());
             message.append(StringUtils.LINE_SEP);
 
+            while (error instanceof BuildException) { // #43398
+                Throwable cause = ((BuildException) error).getCause();
+                if (cause != null && cause.toString().equals(error.getMessage())) {
+                    error = cause;
+                } else {
+                    break;
+                }
+            }
+
             if (Project.MSG_VERBOSE <= msgOutputLevel
                 || !(error instanceof BuildException)) {
                 message.append(StringUtils.getStackTrace(error));