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1.org.apache.commons.io.IOUtils
closeQuietly() toString() copy() toByteArray() write() toInputStream() readLines() copyLarge() lineIterator() readFully()
2.org.apache.commons.io.FileUtils
deleteDirectory() readFileToString() deleteQuietly() copyFile() writeStringToFile() forceMkdir() write() listFiles() copyDirectory() forceDelete()
3.org.apache.commons.lang.StringUtils
isBlank() isNotBlank() isEmpty() isNotEmpty() equals() join() split() EMPTY trimToNull() replace()
4.org.apache.http.util.EntityUtils
toString() consume() toByteArray() consumeQuietly() getContentCharSet()
5.org.apache.commons.lang3.StringUtils
isBlank() isNotBlank() isEmpty() isNotEmpty() join() equals() split() EMPTY replace() capitalize()
6.org.apache.commons.io.FilenameUtils
getExtension() getBaseName() getName() concat() removeExtension() normalize() wildcardMatch() separatorsToUnix() getFullPath() isExtension()
7.org.springframework.util.StringUtils
hasText() hasLength() isEmpty() commaDelimitedListToStringArray() collectionToDelimitedString() replace() delimitedListToStringArray() uncapitalize() collectionToCommaDelimitedString() tokenizeToStringArray()
8.org.apache.commons.lang.ArrayUtils
contains() addAll() clone() isEmpty() add() EMPTY_BYTE_ARRAY subarray() indexOf() isEquals() toObject()
9.org.apache.commons.lang.StringEscapeUtils
escapeHtml() unescapeHtml() escapeXml() escapeSql() unescapeJava() escapeJava() escapeJavaScript() unescapeXml() unescapeJavaScript()
10.org.apache.http.client.utils.URLEncodedUtils
format() parse()
11.org.apache.commons.codec.digest.DigestUtils
md5Hex() shaHex() sha256Hex() sha1Hex() sha() md5() sha512Hex() sha1()
12.org.apache.commons.collections.CollectionUtils
isEmpty() isNotEmpty() select() transform() filter() find() collect() forAllDo() addAll() isEqualCollection()
13.org.apache.commons.lang3.ArrayUtils
contains() isEmpty() isNotEmpty() add() clone() addAll() subarray() indexOf() EMPTY_OBJECT_ARRAY EMPTY_STRING_ARRAY
14.org.apache.commons.beanutils.PropertyUtils
getProperty() setProperty() getPropertyDescriptors() isReadable() copyProperties() getPropertyDescriptor() getSimpleProperty() isWriteable() setSimpleProperty() getPropertyType()
15.org.apache.commons.lang3.StringEscapeUtils
unescapeHtml4() escapeHtml4() escapeXml() unescapeXml() escapeJava() escapeEcmaScript() unescapeJava() escapeJson() escapeXml10()
16.org.apache.commons.beanutils.BeanUtils
copyProperties() getProperty() setProperty() describe() populate() copyProperty() cloneBean()
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