Correct copyright years

api/src/main/java/jakarta/el/ELContext.java

diff --git a/api/src/main/java/jakarta/el/ELContext.java b/api/src/main/java/jakarta/el/ELContext.java
index 2b6fd6c..f45f8a0 100644
--- a/api/src/main/java/jakarta/el/ELContext.java
+++ b/api/src/main/java/jakarta/el/ELContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2019 Oracle and/or its affiliates and others.
+ * Copyright (c) 1997, 2020 Oracle and/or its affiliates and others.
  * All rights reserved.
  * Copyright 2004 The Apache Software Foundation
  *

api/src/main/java/jakarta/el/ExpressionFactory.java

diff --git a/api/src/main/java/jakarta/el/ExpressionFactory.java b/api/src/main/java/jakarta/el/ExpressionFactory.java
index a538295..71ad345 100644
--- a/api/src/main/java/jakarta/el/ExpressionFactory.java
+++ b/api/src/main/java/jakarta/el/ExpressionFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2019 Oracle and/or its affiliates and others.
+ * Copyright (c) 1997, 2020 Oracle and/or its affiliates and others.
  * All rights reserved.
  * Copyright 2004 The Apache Software Foundation
  *

api/src/main/java/jakarta/el/StandardELContext.java

diff --git a/api/src/main/java/jakarta/el/StandardELContext.java b/api/src/main/java/jakarta/el/StandardELContext.java
index c86bc3f..04e7559 100644
--- a/api/src/main/java/jakarta/el/StandardELContext.java
+++ b/api/src/main/java/jakarta/el/StandardELContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2019 Oracle and/or its affiliates and others.
+ * Copyright (c) 2012, 2020 Oracle and/or its affiliates and others.
  * All rights reserved.
  *
  * This program and the accompanying materials are made available under the