Revert commit 5e5cc98cf459281e7c24041fb47c359e55c10b8e which broke 2 
tests in jdt.ui(.refactoring)
diff --git a/releng/build-scripts/build/compiler.OTDT-Build.properties b/releng/build-scripts/build/compiler.OTDT-Build.properties
index 965132c..1617872 100644
--- a/releng/build-scripts/build/compiler.OTDT-Build.properties
+++ b/releng/build-scripts/build/compiler.OTDT-Build.properties
@@ -1,7 +1,7 @@
 # Configure the build compiler for phase 2.
 # This file is read from build/build.xml
 build.compiler=org.eclipse.jdt.core.JDTCompilerAdapter
-compilerArg=-enableJavadoc -encoding UTF-8
+compilerArg=-enableJavadoc -encoding ISO-8859-1
 javaSource=1.5
 javacSource=1.5
 javacTarget=1.5