[spring-extensions] branch main updated: Null guard.

[Scott Cantor]

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scantor pushed a commit to branch main
in repository spring-extensions.

View the commit online:
http://git.shibboleth.net/view/?p=spring-extensions.git;a=commit;h=f721df7ea709e12f20a5db44a4c4c99796dec757

The following commit(s) were added to refs/heads/main by this push:
       new  f721df7   Null guard.
f721df7 is described below

commit f721df7ea709e12f20a5db44a4c4c99796dec757
Author: Scott Cantor <cantor.2 at osu.edu>
AuthorDate: Tue Sep 22 09:43:47 2020 -0400

    Null guard.
---
 .../net/shibboleth/ext/spring/cli/AbstractCommandLineArguments.java  | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/net/shibboleth/ext/spring/cli/AbstractCommandLineArguments.java b/src/main/java/net/shibboleth/ext/spring/cli/AbstractCommandLineArguments.java
index 37e382b..545e1e7 100644
--- a/src/main/java/net/shibboleth/ext/spring/cli/AbstractCommandLineArguments.java
+++ b/src/main/java/net/shibboleth/ext/spring/cli/AbstractCommandLineArguments.java
@@ -19,6 +19,7 @@ package net.shibboleth.ext.spring.cli;
 
 import java.io.PrintStream;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Locale.LanguageRange;
 
@@ -28,6 +29,7 @@ import javax.annotation.Nullable;
 import org.slf4j.Logger;
 
 import com.beust.jcommander.Parameter;
+import com.google.common.base.Strings;
 
 import net.shibboleth.utilities.java.support.annotation.constraint.NonnullElements;
 import net.shibboleth.utilities.java.support.annotation.constraint.NotLive;
@@ -124,6 +126,9 @@ public abstract class AbstractCommandLineArguments implements CommandLineArgumen
      * @return language ranges
      */
     @Nonnull @NonnullElements @Unmodifiable @NotLive public List<LanguageRange> getLanguageRanges() {
+        if (Strings.isNullOrEmpty(languageRanges)) {
+            return Collections.emptyList();
+        }
         return List.copyOf(LanguageRange.parse(languageRanges));
     }
     

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