Fix formatting: replace tabs with spaces.

git-svn-id: https://svn.apache.org/repos/asf/axis/axis2/java/core/trunk@1601455 13f79535-47bb-0310-9956-ffa450edef68
Fix some build failures on Java 7.

git-svn-id: https://svn.apache.org/repos/asf/axis/axis2/java/core/trunk@1601456 13f79535-47bb-0310-9956-ffa450edef68