// (If we did track them, we'd need to tail-prune these too.)
//com.sun.org.apache.xalan.internal.processor.TransformerFactoryImpl.m_source_location;
m_useSourceLocationProperty=false;
m_sourceSystemId = (m_useSourceLocationProperty) ? new StringVector()
: null;
m_sourceLine = (m_useSourceLocationProperty) ? new IntVector() : null;
m_sourceColumn = (m_useSourceLocationProperty) ? new IntVector() : null;
// Record initial sizes of fields that are pushed and restored
// for RTF tail-pruning. More entries can be popped than pushed, so
// we need this to mark the primordial state of the DTM.
m_emptyNodeCount = m_size;