Address SpotBugs Medium:

org.apache.commons.io.input.ReadAheadInputStream.waitForAsyncReadComplete()
does not release lock on all exception paths
[org.apache.commons.io.input.ReadAheadInputStream] At
ReadAheadInputStream.java:[line 448] UL_UNRELEASED_LOCK_EXCEPTION_PATH

Author: garydgregory

src/main/java/org/apache/commons/io/input/ReadAheadInputStream.java

@@ -458,8 +458,11 @@ private void waitForAsyncReadComplete() throws IOException {
             iio.initCause(e);
             throw iio;
         } finally {
-            isWaiting.set(false);
-            stateChangeLock.unlock();
+            try {
+                isWaiting.set(false);
+            } finally {
+                stateChangeLock.unlock();
+            }
         }
         checkReadException();
     }