runtime ExceptionInInitializerError: first steps

[Massimiliano Cuccia]

I have a problem in running this code ... I had just cut&paste from documentation  can anyone help me??? I don't know where to start ...       public void test1(String src, String dst)     {          try          {             Driver driver = new Driver(new InputSource(src), new FileOutputStream(dst));             driver.setRenderer(Driver.RENDER_PDF);                 driver.run();         }         catch (Exception ex)         {              ex.printStackTrace();         }     }   I'm calling test1 by this way     test1("c:\\prova.fo", "c:\\prova.pdf");   I tryed passing a fo string for src parameter too something like this       String src =" "<?xml" version="1.0" encoding=\"ISO-8859-1\"?>"+         "<fo:root xmlns:fo=\"http://www.w3.org/1999/XSL/Format\">"+         ...         ...         ...         "</fo:root>";       test1(src, "c:\\prova.pdf");   every call generate an exception:java.lang.ExceptionInInitializerError this is the Debugger Stack Trace Report:   Thread[main,5,main] (Alive) Uncaught exception (java.lang.ExceptionInInitializerError)    SVGElementMapping.setupSVG()  SVGElementMapping.addToBuilder(TreeBuilder)   this=(org.apache.fop.svg.SVGElementMapping) org.apache.fop.svg.SVGElementMapping@6266   arg_1=(org.apache.fop.fo.TreeBuilder) org.apache.fop.fo.FOTreeBuilder@6cd4  Driver.addElementMapping(ElementMapping)   this=(org.apache.fop.apps.Driver) org.apache.fop.apps.Driver@1936   arg_1=(org.apache.fop.fo.ElementMapping) org.apache.fop.svg.SVGElementMapping@6266  Driver.addElementMapping(String)   this=(org.apache.fop.apps.Driver) org.apache.fop.apps.Driver@1936   arg_1=(java.lang.String) org.apache.fop.svg.SVGElementMapping  Driver.setupDefaultMappings()   this=(org.apache.fop.apps.Driver) org.apache.fop.apps.Driver@1936  Driver()   this=(org.apache.fop.apps.Driver) org.apache.fop.apps.Driver@1936  Driver(InputSource, OutputStream)   this=(org.apache.fop.apps.Driver) org.apache.fop.apps.Driver@1936   arg_1=(org.xml.sax.InputSource) org.xml.sax.InputSource@4478   arg_2=(java.io.OutputStream) java.io.FileOutputStream@4481  ProvaFOP.test1(String, String)   this=(xxx.prova.ProvaFOP) xxx.prova.ProvaFOP@261a   src="(java.lang.String)" c:\prova.fo   dst=(java.lang.String) c:\prova.pdf  ProvaFOP.main(String [])   args=([Ljava.lang.String;) [Ljava.lang.String;@1546   pFOP=(xxx.prova.ProvaFOP) xxx.prova.ProvaFOP@261a   fo=(java.lang.String) c:\prova.fo       thanks!! bye Massimiliano Cuccia