diff --git a/history.txt b/history.txt
index 478d43784..facbc1f52 100644
--- a/history.txt
+++ b/history.txt
@@ -1,4 +1,5 @@
 2019-05-02 zzz
+ * Android: Catch ISE from PRNG at shutdown (ticket #2077)
  * GeoIP Maxmind 2019-04-29
  * NTCP: Rare EventPumper 100% CPU fix (ticket #2476)
  * UPnP: Remove finalize() in HTTPSocket (ticket #2490)
diff --git a/router/java/src/net/i2p/router/RouterVersion.java b/router/java/src/net/i2p/router/RouterVersion.java
index 46b0184db..cef568607 100644
--- a/router/java/src/net/i2p/router/RouterVersion.java
+++ b/router/java/src/net/i2p/router/RouterVersion.java
@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 11;
+    public final static long BUILD = 12;
 
     /** for example "-test" */
     public final static String EXTRA = "-rc";
diff --git a/router/java/src/net/i2p/router/transport/crypto/DHSessionKeyBuilder.java b/router/java/src/net/i2p/router/transport/crypto/DHSessionKeyBuilder.java
index 8fd8da26f..b8db36ccd 100644
--- a/router/java/src/net/i2p/router/transport/crypto/DHSessionKeyBuilder.java
+++ b/router/java/src/net/i2p/router/transport/crypto/DHSessionKeyBuilder.java
@@ -487,6 +487,17 @@ public class DHSessionKeyBuilder {
         }
 
         public void run() {
+            try {
+                run2();
+            } catch (IllegalStateException ise) {
+                if (_isRunning)
+                    throw ise;
+                // else ignore, thread can be slow to shutdown on Android,
+                // PRNG gets stopped first and throws ISE
+            }
+        }
+
+        private void run2() {
             _isRunning = true;
             while (_isRunning) {
                 //long start = System.currentTimeMillis();
diff --git a/router/java/src/net/i2p/router/transport/crypto/X25519KeyFactory.java b/router/java/src/net/i2p/router/transport/crypto/X25519KeyFactory.java
index dace64032..6979c9d02 100644
--- a/router/java/src/net/i2p/router/transport/crypto/X25519KeyFactory.java
+++ b/router/java/src/net/i2p/router/transport/crypto/X25519KeyFactory.java
@@ -77,6 +77,17 @@ public class X25519KeyFactory extends I2PThread {
     }
 
     public void run() {
+        try {
+            run2();
+        } catch (IllegalStateException ise) {
+            if (_isRunning)
+                throw ise;
+            // else ignore, thread can be slow to shutdown on Android,
+            // PRNG gets stopped first and throws ISE
+        }
+    }
+
+    private void run2() {
         _isRunning = true;
         while (_isRunning) {
             int startSize = getSize();