At the moment we don't have an active developer working on HSLF. You will have to wait until the problem is fixed. 

Yegor

I can't reproduce it. Here is my program based on your code snippet and I see "öäå" in the output, see attached. 


        SlideShow ppt = new SlideShow();
        Slide slide = ppt.createSlide();

        TextBox shape = new TextBox();
        RichTextRun rt = shape.getTextRun().getRichTextRuns()[0];
        shape.setHorizontalAlignment(TextBox.AlignLeft);
        rt.setFontName("Times New Roman");
        shape.setText("testingöäåendtesting");
        rt.setFontSize(16);
        shape.setAnchor(new java.awt.Rectangle(495, 375, 210, 115));
        slide.addShape(shape);

        FileOutputStream out = new FileOutputStream("52516.ppt");
        ppt.write(out);
        out.close();

Please post full Java code that generates problematic output.

Yegor

Created attachment 28361 [details]
sample file with accents

hi i'm have to same problem 

SlideShow ppt = new SlideShow();
        Slide slide = ppt.createSlide();

        TextBox shape = new TextBox();
        RichTextRun rt = shape.getTextRun().getRichTextRuns()[0];
        shape.setHorizontalAlignment(TextBox.AlignLeft);
        rt.setFontName("맑은 고딕");
        shape.setText("test테스트123");
        rt.setFontSize(16);
        shape.setAnchor(new java.awt.Rectangle(495, 375, 210, 115));
        slide.addShape(shape);

        FileOutputStream out = new FileOutputStream("52516.ppt");
        ppt.write(out);
        out.close();

"test" and "123" is in the font 맑은 고딕  but the String "테스트" is "굴림"

I can't reproduce the error - please make sure to use escape sequences for chinese (or similar) symbols. In case your chosen font doesn't support the characters, there's also a fallback handling (see #55902 / TestFontRendering class) - something similar is used by Office and could happen when your source code contains umlauts and is not saved/processed in UTF-8.

This was my test code:

@Test
public void bug52516() throws Exception {
    SlideShow ppt = new SlideShow();
    Slide slide = ppt.createSlide();

    TextBox shape = new TextBox();
    RichTextRun rt = shape.getTextRun().getRichTextRuns()[0];
    shape.setHorizontalAlignment(TextBox.AlignLeft);
    rt.setFontName("MS PGothic");
    shape.setText("test\uD14C\uC2A4\uD2B8123");
    rt.setFontSize(16);
    shape.setAnchor(new java.awt.Rectangle(495, 375, 210, 115));
    slide.addShape(shape);

    shape = new TextBox();
    rt = shape.getTextRun().getRichTextRuns()[0];
    shape.setHorizontalAlignment(TextBox.AlignLeft);
    rt.setFontName("Times New Roman");
    shape.setText("testingöäåendtesting");
    rt.setFontSize(16);
    shape.setAnchor(new java.awt.Rectangle(10, 10, 210, 115));
    slide.addShape(shape);
    
    
    FileOutputStream out = new FileOutputStream("52516.ppt");
    ppt.write(out);
    out.close();        
}