From 98dbcf0aff9a2d0f42a7f192aa8951440b39565f Mon Sep 17 00:00:00 2001
From: TwistedUmbrella <twistedumbrella@gmail.com>
Date: Mon, 2 Apr 2018 18:06:51 -0400
Subject: [PATCH] android: better error checking for external drives

---
 .../com/reicast/emulator/FileBrowser.java     | 40 +++++++++----------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/shell/android-studio/app/src/main/java/com/reicast/emulator/FileBrowser.java b/shell/android-studio/app/src/main/java/com/reicast/emulator/FileBrowser.java
index d8e2484ca..29e4ea45c 100644
--- a/shell/android-studio/app/src/main/java/com/reicast/emulator/FileBrowser.java
+++ b/shell/android-studio/app/src/main/java/com/reicast/emulator/FileBrowser.java
@@ -91,39 +91,39 @@ public class FileBrowser extends Fragment {
 			}
 		}
 	}
-	
+
 	public static HashSet<String> getExternalMounts() {
 		final HashSet<String> out = new HashSet<String>();
 		String reg = "(?i).*vold.*(vfat|ntfs|exfat|fat32|ext3|ext4|fuse).*rw.*";
-		String s = "";
+		StringBuilder s = new StringBuilder();
 		try {
 			final Process process = new ProcessBuilder().command("mount")
 					.redirectErrorStream(true).start();
 			process.waitFor();
-			final InputStream is = process.getInputStream();
-			final byte[] buffer = new byte[1024];
+			InputStream is = process.getInputStream();
+			byte[] buffer = new byte[1024];
 			while (is.read(buffer) != -1) {
-				s = s + new String(buffer);
+				s.append(new String(buffer));
 			}
 			is.close();
-		} catch (final Exception e) {
 
-		}
-
-		final String[] lines = s.split("\n");
-		for (String line : lines) {
-			if (StringUtils.containsIgnoreCase(line, "secure"))
-				continue;
-			if (StringUtils.containsIgnoreCase(line, "asec"))
-				continue;
-			if (line.matches(reg)) {
-				String[] parts = line.split(" ");
-				for (String part : parts) {
-					if (part.startsWith("/"))
-						if (!StringUtils.containsIgnoreCase(part, "vold"))
-							out.add(part);
+			String[] lines = s.toString().split("\n");
+			for (String line : lines) {
+				if (StringUtils.containsIgnoreCase(line, "secure"))
+					continue;
+				if (StringUtils.containsIgnoreCase(line, "asec"))
+					continue;
+				if (line.matches(reg)) {
+					String[] parts = line.split(" ");
+					for (String part : parts) {
+						if (part.startsWith("/"))
+							if (!StringUtils.containsIgnoreCase(part, "vold"))
+								out.add(part);
+					}
 				}
 			}
+		} catch (final Exception e) {
+			e.printStackTrace();
 		}
 		return out;
 	}