| インタフェース | 説明 | 
|---|---|
| IPList | |
| Progressable | A facility for reporting progress. | 
| Tool | A tool interface that supports handling of generic command-line options. | 
| クラス | 説明 | 
|---|---|
| ApplicationClassLoader | A  URLClassLoaderfor application isolation. | 
| PureJavaCrc32 | A pure-java implementation of the CRC32 checksum that uses
 the same polynomial as the built-in native CRC32. | 
| PureJavaCrc32C | A pure-java implementation of the CRC32 checksum that uses
 the CRC32-C polynomial, the same polynomial used by iSCSI
 and implemented on many Intel chipsets supporting SSE4.2. | 
| ReflectionUtils | General reflection utils | 
| Shell | A base class for running a Shell command. | 
| StringInterner | Provides equivalent behavior to String.intern() to optimize performance, 
 whereby does not consume memory in the permanent generation. | 
| SysInfo | Plugin to calculate resource information on the system. | 
| ToolRunner | A utility to help run  Tools. | 
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