File _service:tar_scm:CVE-2021-25329-pre2.patch of Package tomcat

From ad60947e42e666dc9c9d77315787ea9bb567e3fd Mon Sep 17 00:00:00 2001
From: Mark Thomas <markt@apache.org>
Date: Wed, 13 Mar 2019 11:18:45 +0000
Subject: [PATCH] Always process the docBase using absolute path during
 deployment

Use absolute path to determine the Context name, deployment type,
whether the docBase is located within the appBase etc.
---
 java/org/apache/catalina/startup/ContextConfig.java | 4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/java/org/apache/catalina/startup/ContextConfig.java b/java/org/apache/catalina/startup/ContextConfig.java
index ebd3d8221f..0c67af3bf4 100644
--- a/java/org/apache/catalina/startup/ContextConfig.java
+++ b/java/org/apache/catalina/startup/ContextConfig.java
@@ -582,9 +582,9 @@ protected void fixDocBase() throws IOException {
 
         File file = new File(docBase);
         if (!file.isAbsolute()) {
-            docBase = (new File(appBase, docBase)).getCanonicalPath();
+            docBase = (new File(appBase, docBase)).getAbsolutePath();
         } else {
-            docBase = file.getCanonicalPath();
+            docBase = file.getAbsolutePath();
         }
         file = new File(docBase);
         String origDocBase = docBase;