| Interface | Description | 
|---|---|
| ArgumentUtils.Check | 
 Functional interface the check a condition. 
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| PathMatcher | 
 Interface for components that can match source strings against a specified pattern string. 
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| Toggleable | 
 An interface for components or configurations that can be toggled on or off. 
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| Class | Description | 
|---|---|
| AntPathMatcher | 
 PathMatcher implementation for Ant-style path patterns. 
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| ArgumentUtils | 
 Utility methods for checking method argument values. 
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| ArgumentUtils.ArgumentCheck<T> | 
 Allows producing error messages. 
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| ArrayUtils | 
 Utility methods for working with arrays. 
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| CollectionUtils | 
 Utility methods for working with  
Collection types | 
| StreamUtils | 
 Utility methods for working with streams. 
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| StringUtils | 
 Utility methods for Strings. 
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