may colon (:) be valid char as spring:session:sessions

in spring-session project, spring:session:sessions is used as default name.
so may : be valid in cache name pattern.

as the docs says

For maximum compatibility cache names should only
be composed with the characters [-_.a-zA-Z0-9].
The characters {}|^&=";:<>*?/ are not allowed in a cache name.

and the code impl

cache2k/cache2k-core/src/main/java/org/cache2k/core/CacheManagerImpl.java

Lines 141 to 163 in d6db509

    
           public static void checkName(String s) { 
        
             for (char c : s.toCharArray()) { 
        
               if (c == '.' || 
        
                   c == '-' || 
        
                   c == '~' || 
        
                   c == ',' || 
        
                   c == '@' || 
        
                   c == ' ' || 
        
                   c == '(' || 
        
                   c == ')' || 
        
                   c == '+' || 
        
                   c == '!' || 
        
                   c == '\'' || 
        
                   c == '%' || 
        
                   c == '#') { 
        
                 continue; 
        
               } 
        
               if (c < 32 || c >= 127 || !Character.isJavaIdentifierPart(c)) { 
        
                 throw new IllegalArgumentException( 
        
                   "Cache name contains illegal character: '" + c + "', name=\"" + s + "\""); 
        
               } 
        
             } 
        
           }

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	public static void checkName(String s) {
	for (char c : s.toCharArray()) {
	if (c == '.' \|\|
	c == '-' \|\|
	c == '~' \|\|
	c == ',' \|\|
	c == '@' \|\|
	c == ' ' \|\|
	c == '(' \|\|
	c == ')' \|\|
	c == '+' \|\|
	c == '!' \|\|
	c == '\'' \|\|
	c == '%' \|\|
	c == '#') {
	continue;
	}
	if (c < 32 \|\| c >= 127 \|\| !Character.isJavaIdentifierPart(c)) {
	throw new IllegalArgumentException(
	"Cache name contains illegal character: '" + c + "', name=\"" + s + "\"");
	}
	}
	}

Uh oh!

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