import java.util.*; import Jakarta.util.*; import java.io.*; public abstract class AstListNode { public void setSource( String s ) { AstNode.fatalError( "AstListNode.setSource( s ) method should not be called" ); } public void compose( AstNode etree, JTSParseTree base, JTSParseTree ext ) { AstNode.fatalError( "AstListNode.compose method should not be called" ); } public void prepare( JTSParseTree t ) { AstNode.fatalError( "AstListNode.prepare method should not be called" ); } }