JBoss - Java heap retention in T4CPreparedStatements

Issue

• "java.lang.OutOfMemoryError: Java heap space" errors are received because the heap is consumed by oracle.jdbc.driver.T4CPreparedStatement.
• The T4CPreparedStatements are abnormally large (several megabytes each) because of a large char[] they own called defineChars.  However, this defineChars char[] appears to only contain white space.