From 44d38a00d4e68338a78c71c9979eb96ec95d44e0 Mon Sep 17 00:00:00 2001
From: Moxie Marlinspike <moxie+github@signal.org>
Date: Sun, 20 Oct 2019 08:27:06 -0700
Subject: [PATCH] Fix capabilities NPE

---
 .../org/whispersystems/textsecuregcm/storage/Account.java     | 4 +++-
 .../java/org/whispersystems/textsecuregcm/storage/Device.java | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java b/service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java
index f94aab91b..2a0379184 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/storage/Account.java
@@ -133,7 +133,9 @@ public class Account implements Principal  {
   }
 
   public boolean isUuidAddressingSupported() {
-    return devices.stream().filter(Device::isEnabled).allMatch(device -> device.getCapabilities().isUuid());
+    return devices.stream()
+                  .filter(Device::isEnabled)
+                  .allMatch(device -> device.getCapabilities() != null && device.getCapabilities().isUuid());
   }
 
   public boolean isEnabled() {
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/storage/Device.java b/service/src/main/java/org/whispersystems/textsecuregcm/storage/Device.java
index e1d672d32..1941e1cc0 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/storage/Device.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/storage/Device.java
@@ -23,6 +23,8 @@ import org.whispersystems.textsecuregcm.entities.UserCapabilities;
 import org.whispersystems.textsecuregcm.entities.SignedPreKey;
 import org.whispersystems.textsecuregcm.util.Util;
 
+import javax.annotation.Nullable;
+import javax.validation.constraints.Null;
 import java.util.concurrent.TimeUnit;
 
 public class Device {
@@ -188,7 +190,7 @@ public class Device {
     return new AuthenticationCredentials(authToken, salt);
   }
 
-  public DeviceCapabilities getCapabilities() {
+  public @Nullable DeviceCapabilities getCapabilities() {
     return capabilities;
   }