Fix edge-case NullPointerException in

org.apache.commons.lang3.SystemUtils.isJavaVersionAtLeast(JavaVersion)

Fix edge-case NullPointerException in
org.apache.commons.lang3.SystemUtils.isJavaVersionAtMost(JavaVersion)

Author: garydgregory

src/changes/changes.xml

@@ -95,7 +95,9 @@ The <action> type attribute can be add,update,fix,remove.
     <action                   type="fix" dev="ggregory" due-to="Ken Dombeck">Fix Javadoc code examples in DiffBuilder and ReflectionDiffBuilder #1400.</action>
     <action                   type="fix" dev="ggregory" due-to="Gary Gregory">Fix generics in org.apache.commons.lang3.stream.Streams.toArray(Class) signature.</action>
     <action issue="LANG-1727" type="fix" dev="ggregory" due-to="Elliotte Rusty Harold, Gary Gregory">EventListenerSupport doesn't document ordering of events.</action>
-    <action                   type="fix" dev="ggregory" due-to="Gary Gregory">Fix NullPointerException in org.apache.commons.lang3.SystemUtils.IS_OS_ANDROID.</action>
+    <action                   type="fix" dev="ggregory" due-to="Gary Gregory">Fix edge-case NullPointerException in org.apache.commons.lang3.SystemUtils.IS_OS_ANDROID.</action>
+    <action                   type="fix" dev="ggregory" due-to="Gary Gregory">Fix edge-case NullPointerException in org.apache.commons.lang3.SystemUtils.isJavaVersionAtLeast(JavaVersion).</action>
+    <action                   type="fix" dev="ggregory" due-to="Gary Gregory">Fix edge-case NullPointerException in org.apache.commons.lang3.SystemUtils.isJavaVersionAtMost(JavaVersion).</action>
     <!-- ADD -->
     <action                   type="add" dev="ggregory" due-to="Gary Gregory">Add Strings and refactor StringUtils.</action>
     <action issue="LANG-1747" type="add" dev="ggregory" due-to="Oliver B. Fischer, Gary Gregory">Add StopWatch.run([Failable]Runnable) and get([Failable]Supplier).</action>

src/main/java/org/apache/commons/lang3/SystemUtils.java

@@ -2281,7 +2281,7 @@ public static boolean isJavaAwtHeadless() {
      * @return {@code true} if the actual version is equal or greater than the required version
      */
     public static boolean isJavaVersionAtLeast(final JavaVersion requiredVersion) {
-        return JAVA_SPECIFICATION_VERSION_AS_ENUM.atLeast(requiredVersion);
+        return JAVA_SPECIFICATION_VERSION_AS_ENUM != null && JAVA_SPECIFICATION_VERSION_AS_ENUM.atLeast(requiredVersion);
     }
 
     /**
@@ -2295,7 +2295,7 @@ public static boolean isJavaVersionAtLeast(final JavaVersion requiredVersion) {
      * @since 3.9
      */
     public static boolean isJavaVersionAtMost(final JavaVersion requiredVersion) {
-        return JAVA_SPECIFICATION_VERSION_AS_ENUM.atMost(requiredVersion);
+        return JAVA_SPECIFICATION_VERSION_AS_ENUM != null && JAVA_SPECIFICATION_VERSION_AS_ENUM.atMost(requiredVersion);
     }
 
     /**