Simplify same catch blocks

Author: kunall17

app/src/main/java/com/zulip/android/models/Message.java

@@ -473,10 +473,7 @@ private static Spanned formatContent(String source, ZulipApp app) {
         Parser parser = new Parser();
         try {
             parser.setProperty(Parser.schemaProperty, schema);
-        } catch (org.xml.sax.SAXNotRecognizedException e) {
-            // Should not happen.
-            throw new RuntimeException(e);
-        } catch (org.xml.sax.SAXNotSupportedException e) {
+        } catch (org.xml.sax.SAXNotRecognizedException | org.xml.sax.SAXNotSupportedException e) {
             // Should not happen.
             throw new RuntimeException(e);
         }

app/src/main/java/com/zulip/android/util/CustomHtmlToSpannedConverter.java

@@ -85,12 +85,9 @@ public Spanned convert() {
         mReader.setContentHandler(this);
         try {
             mReader.parse(new InputSource(new StringReader(mSource)));
-        } catch (IOException e) {
+        } catch (IOException | SAXException e) {
             // We are reading from a string. There should not be IO problems.
             throw new RuntimeException(e);
-        } catch (SAXException e) {
-            // TagSoup doesn't throw parse exceptions.
-            throw new RuntimeException(e);
         }
 
         // Fix flags and range for paragraph-type markup.

app/src/main/java/com/zulip/android/util/MD5Util.java

@@ -27,9 +27,7 @@ public static String md5Hex(String message) {
         try {
             MessageDigest md = MessageDigest.getInstance("MD5");
             return hex(md.digest(message.getBytes("CP1252")));
-        } catch (NoSuchAlgorithmException e) {
-            Log.e(TAG, e.getMessage(), e);
-        } catch (UnsupportedEncodingException e) {
+        } catch (NoSuchAlgorithmException | UnsupportedEncodingException e) {
             Log.e(TAG, e.getMessage(), e);
         }
         return null;