[groovy] 01/03: doco: fix url

[pa...@apache.org]

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paulk pushed a commit to branch master
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commit ac4846e0875cfc7539caee7e9a9c9d597a4bd7e8
Author: Paul King <pa...@asert.com.au>
AuthorDate: Wed Sep 2 15:42:09 2020 +1000

    doco: fix url
---
 src/spec/doc/fragment_design-pattern-null-object.adoc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/spec/doc/fragment_design-pattern-null-object.adoc b/src/spec/doc/fragment_design-pattern-null-object.adoc
index e9da543..da3b144 100644
--- a/src/spec/doc/fragment_design-pattern-null-object.adoc
+++ b/src/spec/doc/fragment_design-pattern-null-object.adoc
@@ -22,7 +22,7 @@
 = Null Object Pattern
 
 
-The http://en.wikipedia.org/wiki/Null_Object_pattern[Null Object Pattern] involves using a special object place-marker object representing null. Typically, if you have a reference to null, you can't invoke `reference.field` or `reference.method()` You receive the dreaded `NullPointerException`. The null object pattern uses a special object representing null, instead of using an actual `null`. This allows you to invoke field and method references on the null object. The result of using th [...]
+The https://en.wikipedia.org/wiki/Null_object_pattern[Null Object Pattern] involves using a special object place-marker object representing null. Typically, if you have a reference to null, you can't invoke `reference.field` or `reference.method()` You receive the dreaded `NullPointerException`. The null object pattern uses a special object representing null, instead of using an actual `null`. This allows you to invoke field and method references on the null object. The result of using t [...]
 
 == Simple Example