Merge the changes for the Java method references

It closes #10 on Github.

CHANGELOG.md

@@ -17,6 +17,9 @@ project adheres to [Semantic Versioning].
 
   + Some new syntax groups for types and functions have been added.
 
+- Add the support for the Java method references by using the `Type` and
+  `Function` highlight groups.
+
 - Adds three Java syntax groups in order to be able to fold multiline
   comments, `import` statement blocks and `import static` statement blocks.
 

after/syntax/java.vim

@@ -44,6 +44,8 @@ syntax match   javaOdysseyGetStaticMethod "\%(\<import\>\s\+\<static\>\s\+\%(\w\
 syntax match   javaOdysseyGetStaticClass  "\%(\<import\>\s\+\<static\>\s\+\%(\w\+\.\)\+\)\@<=\%(\u\w*\)\%(\s*;\)\@="
 syntax match   javaOdysseyExtends         "\%(\<extends\>\s\+\)\@<=\%(\<\u\w*\>\)\%(<\%(\u\w*\|,\|\s\|<\|>\)*>\)\=" contains=javaOdysseyGeneric,javaOdysseySeparator
 syntax match   javaOdysseyImplements      "\%(\<implements\>\s\+\)\@<=\%(\<\u\w*\>\)\%(<\%(\u\w*\|,\|\s\|<\|>\)*>\)\=" contains=javaOdysseyGeneric,javaOdysseySeparator
+syntax match   javaOdysseyMethodRef       "::\<\l\w*\>"ms=s+2 containedin=javaParenT,javaParenT1,javaParenT2
+syntax match   javaOdysseyClassMethodRef  "\<\u\w*\>::"me=e-2 containedin=javaParenT,javaParenT1,javaParenT2
 syntax region  javaOdysseyComment         start=+/\*+ end=+\*/+ transparent fold keepend
 syntax region  javaOdysseyImport          start=/\%(^import\)\@<=\s.\+;/ end=+^\s*$+ transparent fold keepend
 syntax region  javaOdysseyImportStatic    start=/\%(^import static\)\@<=\s.\+;/ end=+^\s*$+ transparent fold keepend

colors/odyssey.vim

@@ -282,6 +282,8 @@ call s:l(          'javaOdysseyArrow',        'Operator')
 call s:l(         'javaOdysseyLombok',       'Statement')
 call s:l(      'javaOdysseyEnumValue',        'Constant')
 call s:l('javaOdysseyEnumConstructor',        'Constant')
+call s:l(      'javaOdysseyMethodRef',        'Function')
+call s:l( 'javaOdysseyClassMethodRef',            'Type')
 
 if exists('g:odyssey_java_javadoc') && g:odyssey_java_javadoc != 0
   if exists('g:java_ignore_javadoc')