Hi,
Need help in only retaining an existing ppt's slidemaster and create new
layouts. I am using the following code to achieve the same on linux machine
but Null Pointers are scaring me.
Exception in thread "main" java.lang.NullPointerException
at
org.apache.poi.xslf.usermodel.XMLSlideShow.createSlide(XMLSlideShow.java:223)
Code I am using :
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("test.pptx"));
XSLFSlideMaster defaultMaster = ppt.getSlideMasters()[0];
XSLFSlideLayout layout1 =
defaultMaster.getLayout(SlideLayout.VERT_TITLE_AND_TX);
XSLFSlide slide1 = ppt.createSlide(layout1);
XSLFSlideLayout layout2 =
defaultMaster.getLayout(SlideLayout.SECTION_HEADER);
XSLFSlide slide2 = ppt.createSlide(layout2);
FileOutputStream out = new FileOutputStream(file);
ppt.removeSlide(0);
ppt.write(out);
out.close();
As told, the above code works perfectly when the pptx is using the default
white and white theme but not when I make any changes to the master theme.
Any help would be of great help to me.
Thanks in Advance,
Jeevan
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