Error in some libs in 3.1beta9

public void setPreviewThumbnail(int i, String directory, Page p, Document d, boolean showOnlyAdPageThumbnail) { //normal thumbnail String directoryPlusThumbnail = directory + "AndroidNormal_THUMBNAIL_" + i + ".jpg"; //check for adpage-file: thumbnail if not already downloaded if (p.isAdPage() && !showOnlyAdPageThumbnail){ String temp = directory + "AndroidNormal_PDF_" + i + ".jpg"; File file = new File(temp); if(file.exists()) { directoryPlusThumbnail = directory + "AndroidNormal_PDF_" + i + ".jpg"; Log.d(TAG, "#adpage-file here"); } else { Log.d(TAG, "#no adpage-file here"); } } //double-page thumbnail String directoryPlusThumbnailDoublePage = ""; if(p.isDoublePage()){ directoryPlusThumbnailDoublePage = directory + "AndroidNormal_THUMBNAIL_" + (i +1) + ".jpg"; } //temporary cache-files String tempPdf = APAWlApp.getCacheDirectory().getAbsolutePath() + File.separator + issue.getUniqueId() + "_page_" + i + ".pdf"; String cache = APAWlApp.getCacheDirectory().getAbsolutePath() + File.separator + issue.getUniqueId() + "_page_" + i + "_cachefile"; d.Create(tempPdf); //wichtig! cache muss gesetzt werden! d.SetCache(cache); com.radaee.pdf.Page page = null; if(p.isDoublePage()){ page = d.NewPage(0, (widthThumbnail *2), heightThumbnail);//create A3 quer paper } else { page = d.NewPage(0, widthThumbnail, heightThumbnail);//create A4 paper } PageContent content = new PageContent(); content.Create();//create content, do not forget. //set alpha for both fill and stroke DocGState dgs = d.NewGState(); dgs.SetFillAlpha(0x80);//set alpha value to 0.5 dgs.SetStrokeAlpha(0x80);//set alpha value to 0.5 ResGState rgs = page.AddResGState(dgs); content.GSSet(rgs); //write a bitmap content.GSSave(); dgs = d.NewGState(); dgs.SetFillAlpha(255);//set alpha value to 1 dgs.SetStrokeAlpha(255);//set alpha value to 1 rgs = page.AddResGState(dgs); content.GSSet(rgs); Bitmap bit=null; if(!new File(directoryPlusThumbnail).exists()) { Log.e(TAG, "#directoryPlusThumbnail="+directoryPlusThumbnail); bit = Bitmap.createBitmap(50, 100, Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bit); canvas.drawColor(0xFFFFFFFF); } else { Log.d(TAG, "#directoryPlusThumbnail="+directoryPlusThumbnail); } if(bit == null){ if(p.isDoublePage()){ BitmapFactory.Options options = new BitmapFactory.Options(); options.inPurgeable = false; options.inPreferredConfig = Bitmap.Config.ARGB_8888; options.inJustDecodeBounds = false; //Memory-Fix fuer API-Level <2.3 if (android.os.Build.VERSION.SDK_INT <= android.os.Build.VERSION_CODES.GINGERBREAD_MR1) { options.inSampleSize = 4; } else { options.inSampleSize = 1; } bit=combineBitmaps(BitmapFactory.decodeFile(directoryPlusThumbnail, options), BitmapFactory.decodeFile(directoryPlusThumbnailDoublePage, options)); } else { BitmapFactory.Options options = new BitmapFactory.Options(); options.inPurgeable = false; options.inPreferredConfig = Bitmap.Config.ARGB_8888; options.inJustDecodeBounds = false; //Memory-Fix fuer API-Level <2.3 if (android.os.Build.VERSION.SDK_INT <= android.os.Build.VERSION_CODES.GINGERBREAD_MR1) { options.inSampleSize = 4; } else { options.inSampleSize = 1; } bit = BitmapFactory.decodeFile(directoryPlusThumbnail, options); } } DocImage dimg = d.NewImage(bit, true); bit.recycle(); bit = null; ResImage rimg = page.AddResImage(dimg); Matrix mat = null; if(p.isDoublePage()){ mat = new Matrix( widthThumbnail *2, heightThumbnail, 0, 0 ); } else { mat = new Matrix( widthThumbnail, heightThumbnail, 0, 0 ); } content.GSSetMatrix(mat); mat.Destroy(); content.DrawImage(rimg); content.GSRestore(); //add content to page page.AddContent(content, true); content.Destroy(); page.Close(); //delete temporary files File cacheFile = new File(cache); File tempFile = new File(tempPdf); if(cacheFile.exists()) { cacheFile.delete(); } if(tempFile.exists()) { tempFile.delete(); } }