changed Thread.sleep(1000) in a synchro method to wait(1000). PR# 37767.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@393316 13f79535-47bb-0310-9956-ffa450edef68

WHATSNEW

@@ -195,6 +195,8 @@ Fixed bugs:
 
 * <available> could leak resources, Bugzilla Report 38260.
 
+* redirector called Thread.sleep in a synchronized method. Bugzilla report 37767.
+
 Other changes:
 --------------
 * Improve compatibility with GNU Classpath and java versions prior to 1.5. Bugzilla 39027.

src/main/org/apache/tools/ant/taskdefs/Redirector.java

@@ -770,7 +770,7 @@ public class Redirector {
                         // Ignore exception
                     }
                 }
-                Thread.sleep(1000);
+                wait(1000);
             } catch (InterruptedException eyeEx) {
                 // Ignore exception
             }