Fix potential NULL dereference in Java example code

Coverity tells us that getline() can return null. Don't blindly reference
it.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

diff --git a/java/src/com/example/LibTest.java b/java/src/com/example/LibTest.java
index d2097ca2adb0dfb5576cb6905817589fa65f5828..52fcd7089f9f0315af5c65c0589bf1171dbf7940 100644 (file)
--- a/java/src/com/example/LibTest.java
+++ b/java/src/com/example/LibTest.java
@@ -55,7 +55,7 @@ public final class LibTest {
 
                        System.out.print("\nAccept this certificate? [n] ");
                        String s = getline();
-                       if (s.startsWith("y") || s.startsWith("Y")) {
+                       if (s != null && (s.startsWith("y") || s.startsWith("Y"))) {
                                return 0;
                        } else {
                                return -1;