Flip null test

Author: garydgregory

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

@@ -69,7 +69,7 @@ public void close() throws IOException {
     @Override
     public int read() throws IOException {
         final InputStream inputStream = inputStreamLocal.get();
-        if (null != inputStream) {
+        if (inputStream != null) {
             return inputStream.read();
         }
         return EOF;

src/main/java/org/apache/commons/io/output/DemuxOutputStream.java

@@ -68,7 +68,7 @@ public void close() throws IOException {
     public void flush() throws IOException {
         @SuppressWarnings("resource")
         final OutputStream output = outputStreamThreadLocal.get();
-        if (null != output) {
+        if (output != null) {
             output.flush();
         }
     }
@@ -83,7 +83,7 @@ public void flush() throws IOException {
     public void write(final int ch) throws IOException {
         @SuppressWarnings("resource")
         final OutputStream output = outputStreamThreadLocal.get();
-        if (null != output) {
+        if (output != null) {
             output.write(ch);
         }
     }