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copied!<p>I was able to do this with calling a Java routine from the adapter to call the back-end service that returns the PDF as a <code>byte[]</code>. Once the <code>byte[]</code> is retrieved I <code>base64</code> encode it in the Java routine, URI encode it in the adapter, then do the reverse in the client js code. The Java code uses the Apache <code>HttpClient</code>. I tried the plain return type as well as others with no luck.</p> <p><a href="http://www.samnunnally.com/?p=41" rel="nofollow" title="Java code example">Java example here</a> </p> <p>Adapter code:</p> <pre><code>var service = new ServiceClient(); var pdf = service.getUnsecureContentBase64(url); result.pdf = encodeURIComponent(pdf); return result; </code></pre> <p>Client code:</p> <pre><code>onSuccess : function (response){ var pdfText = decodeURIComponent(response.invocationResult.pdf); var pdf = base64DecToArr(pdfText); //use pdf byte[] to pass to Mozilla pdf.js var pdfText = decodeURIComponent(response.invocationResult.pdf); var pdf = base64DecToArr(pdfText); PDFJS.disableWorker = false; PDFJS.getDocument(pdf).then(function (pdfDoc) { //use pdfDoc to render }); } </code></pre> <p>Java code:</p> <pre><code>public class ServiceClient { public String getUnsecureContentBase64(String url) throws ClientProtocolException, IOException { byte[] result = getUnsecureContent(url); return Base64.encodeBase64String(result); } public byte[] getUnsecureContent(String url) throws ClientProtocolException, IOException { byte[] result = null; CloseableHttpClient httpclient = null; try { httpclient = HttpClientBuilder.create() .setRedirectStrategy(new LaxRedirectStrategy()).build(); HttpGet httpget = new HttpGet(url); // Create a response handler ResponseHandler<byte[]> handler = new ResponseHandler<byte[]>() { public byte[] handleResponse(HttpResponse response) throws ClientProtocolException, IOException { HttpEntity entity = response.getEntity(); if (entity != null) { return EntityUtils.toByteArray(entity); } else { return null; } } }; result = httpclient.execute(httpget, handler); } finally { if (httpclient != null) { httpclient.close(); } } return result; } } </code></pre>

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