Fixed ignored thread interruption during shutdown.

Signed-off-by: Phil Hunt <phil.hunt@independentid.com>

Author: independentid

i2scim-signals/src/main/java/com/independentid/signals/PushStream.java

@@ -72,7 +72,10 @@ public boolean pushEvent(SecurityEventToken event) {
                 i++;
                 try {
                     Thread.sleep(1000);
-                } catch (InterruptedException ignore) {
+                } catch (InterruptedException e) {
+                    logger.warn("Interrupted while waiting for push endpoint configuration");
+                    Thread.currentThread().interrupt();
+                    return false;
                 }
                 if (i == 30) {
                     logger.error("Continuing to wait for push endpoint configuration...");