Unable to use Ubuntu Mono Font

Unable to load font file: file:/usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-R.ttf
java.lang.ArrayIndexOutOfBoundsException: 1047                                                                                               
  at org.apache.fop.fonts.truetype.OpenFont.readPostScript(OpenFont.java:1320)
  at org.apache.fop.fonts.truetype.OpenFont.readFont(OpenFont.java:736)
  at org.apache.fop.fonts.truetype.OFFontLoader.read(OFFontLoader.java:109)
  at org.apache.fop.fonts.truetype.OFFontLoader.read(OFFontLoader.java:93)
  at org.apache.fop.fonts.FontLoader.getFont(FontLoader.java:124)
  at org.apache.fop.fonts.FontLoader.loadFont(FontLoader.java:108)
  at org.apache.fop.fonts.autodetect.FontInfoFinder.find(FontInfoFinder.java:254)
  at org.apache.fop.fonts.FontAdder.add(FontAdder.java:63)
  at org.apache.fop.fonts.FontDetectorFactory$DefaultFontDetector.detect(FontDetectorFactory.java:97)
  at org.apache.fop.fonts.FontManager.autoDetectFonts(FontManager.java:229)
  at org.apache.fop.fonts.DefaultFontConfigurator.configure(DefaultFontConfigurator.java:82)
  at org.apache.fop.render.PrintRendererConfigurator.getCustomFontCollection(PrintRendererConfigurator.java:147)
  at org.apache.fop.render.PrintRendererConfigurator.setupFontInfo(PrintRendererConfigurator.java:127)
  at org.apache.fop.render.intermediate.IFUtil.setupFonts(IFUtil.java:170)
  at org.apache.fop.render.intermediate.IFRenderer.setupFontInfo(IFRenderer.java:187)
  at org.apache.fop.area.RenderPagesModel.<init>(RenderPagesModel.java:75)
  at org.apache.fop.area.AreaTreeHandler.setupModel(AreaTreeHandler.java:135)
  at org.apache.fop.area.AreaTreeHandler.<init>(AreaTreeHandler.java:105)
  at org.apache.fop.render.RendererFactory.createFOEventHandler(RendererFactory.java:350)
  at org.apache.fop.fo.FOTreeBuilder.<init>(FOTreeBuilder.java:107)
  at org.apache.fop.apps.Fop.createDefaultHandler(Fop.java:104)
  at org.apache.fop.apps.Fop.<init>(Fop.java:78)
  at org.apache.fop.apps.FOUserAgent.newFop(FOUserAgent.java:179)
  at org.apache.fop.apps.FopFactory.newFop(FopFactory.java:240)