From c728e1489caab45afbbbb148acb6736cfabb2b3e Mon Sep 17 00:00:00 2001
From: James Perkins <jperkins@redhat.com>
Date: Tue, 28 Jun 2016 10:53:24 -0700
Subject: [PATCH] [LOGMGR-141] Fix ending deletion length when truncating
 format parts.

---
 .../java/org/jboss/logmanager/formatters/Formatters.java     | 2 +-
 .../jboss/logmanager/formatters/PatternFormatterTests.java   | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/jboss/logmanager/formatters/Formatters.java b/src/main/java/org/jboss/logmanager/formatters/Formatters.java
index b0814ad7..4a5a3500 100644
--- a/src/main/java/org/jboss/logmanager/formatters/Formatters.java
+++ b/src/main/java/org/jboss/logmanager/formatters/Formatters.java
@@ -210,7 +210,7 @@ public void render(final StringBuilder builder, final ExtLogRecord record) {
                 final int overflow = writtenLen - maximumWidth;
                 if (overflow > 0) {
                     if (truncateBeginning) {
-                        builder.delete(oldLen, overflow + 1);
+                        builder.delete(oldLen, oldLen + overflow);
                     }
                     builder.setLength(newLen - overflow);
                 } else {
diff --git a/src/test/java/org/jboss/logmanager/formatters/PatternFormatterTests.java b/src/test/java/org/jboss/logmanager/formatters/PatternFormatterTests.java
index d35476a1..a99d2c2e 100644
--- a/src/test/java/org/jboss/logmanager/formatters/PatternFormatterTests.java
+++ b/src/test/java/org/jboss/logmanager/formatters/PatternFormatterTests.java
@@ -184,6 +184,11 @@ public void truncation() throws Exception {
 
         formatter = new PatternFormatter("%-5.10m");
         Assert.assertEquals("test ", formatter.format(record));
+
+        // Exact length truncation
+        final String msg = "test message";
+        formatter = new PatternFormatter("%c %-5.-7m");
+        Assert.assertEquals(CATEGORY + " message", formatter.format(createLogRecord(msg)));
     }
 
     @Test