com.fasterxml.jackson.databind.ObjectMapper#reader(com.fasterxml.jackson.core.type.TypeReference) @ Use ObjectMapper#readerFor instead
com.fasterxml.jackson.databind.ObjectMapper#reader(com.fasterxml.jackson.databind.JavaType) @ Use ObjectMapper#readerFor instead
com.fasterxml.jackson.databind.ObjectMapper#reader(java.lang.Class) @ Use ObjectMapper#readerFor instead
com.google.common.base.Charsets @ Use java.nio.charset.StandardCharsets instead
com.google.common.collect.Iterators#emptyIterator() @ Use java.util.Collections#emptyIterator()
com.google.common.collect.Lists#newArrayList() @ Create java.util.ArrayList directly
com.google.common.collect.Lists#newLinkedList() @ Use ArrayList or ArrayDeque instead
com.google.common.collect.Lists#newLinkedList(java.lang.Iterable) @ Use ArrayList or ArrayDeque instead
com.google.common.collect.MapMaker @ Create java.util.concurrent.ConcurrentHashMap directly
com.google.common.collect.Maps#newConcurrentMap() @ Create java.util.concurrent.ConcurrentHashMap directly
com.google.common.collect.Maps#newHashMap() @ Create java.util.HashMap directly
com.google.common.collect.Maps#newHashMap(java.util.Map) @ Create java.util.HashMap directly
com.google.common.collect.Maps#newTreeMap() @ Create java.util.TreeMap directly
com.google.common.collect.Maps#newTreeMap(java.util.Comparator) @ Create java.util.TreeMap directly
com.google.common.collect.Maps#newTreeMap(java.util.SortedMap) @ Create java.util.TreeMap directly
com.google.common.collect.Queues#newArrayDeque() @ Create java.util.ArrayDeque directly
com.google.common.collect.Queues#newConcurrentLinkedQueue() @ Create java.util.concurrent.ConcurrentLinkedQueue directly
com.google.common.collect.Queues#newLinkedBlockingQueue() @ Create java.util.concurrent.LinkedBlockingQueue directly
com.google.common.collect.Sets#newHashSet() @ Create java.util.HashSet directly
com.google.common.collect.Sets#newLinkedHashSet() @ Create java.util.LinkedHashSet directly
com.google.common.collect.Sets#newTreeSet() @ Create java.util.TreeSet directly
com.google.common.collect.Sets#newTreeSet(java.util.Comparator) @ Create java.util.TreeSet directly
com.google.common.io.Files#createTempDir() @ Use org.apache.druid.java.util.common.FileUtils.createTempDir()
com.google.common.util.concurrent.MoreExecutors#sameThreadExecutor() @ Use org.apache.druid.java.util.common.concurrent.Execs#directExecutor()
java.io.File#mkdirs() @ Use org.apache.druid.java.util.common.FileUtils.mkdirp instead
java.io.File#toURL() @ Use java.io.File#toURI() and java.net.URI#toURL() instead
java.lang.String#matches(java.lang.String) @ Use startsWith(), endsWith(), contains(), or compile and cache a Pattern explicitly
java.lang.String#replace(java.lang.CharSequence,java.lang.CharSequence) @ Use one of the appropriate methods in StringUtils instead
java.lang.String#replaceAll(java.lang.String,java.lang.String) @ Use one of the appropriate methods in StringUtils instead, or compile and cache a Pattern explicitly
java.lang.String#replaceFirst(java.lang.String,java.lang.String) @ Use String.indexOf() and substring methods, or compile and cache a Pattern explicitly
java.nio.file.Files#createTempDirectory(java.lang.String,java.nio.file.attribute.FileAttribute[]) @ Use org.apache.druid.java.util.common.FileUtils.createTempDir()
java.nio.file.Files#createTempDirectory(java.lang.String,java.nio.file.Path,java.nio.file.attribute.FileAttribute[]) @ Use org.apache.druid.java.util.common.FileUtils.createTempDir()
java.util.HashMap#<init>(int) @ Use com.google.common.collect.Maps#newHashMapWithExpectedSize(int) instead
java.util.HashMap#<init>(int, float) @ Use com.google.common.collect.Maps#newHashMapWithExpectedSize(int) instead
java.util.LinkedHashMap#<init>(int) @ Use org.apache.druid.utils.CollectionUtils#newLinkedHashMapWithExpectedSize(int) instead
java.util.LinkedHashMap#<init>(int, float) @ Use org.apache.druid.utils.CollectionUtils#newLinkedHashMapWithExpectedSize(int) instead
java.util.HashSet#<init>(int) @ Use com.google.collect.Sets#newHashSetWithExpectedSize(int) instead
java.util.HashSet#<init>(int, float) @ Use com.google.collect.Sets#newHashSetWithExpectedSize(int) instead
java.util.LinkedHashSet#<init>(int) @ Use com.google.collect.Sets#newLinkedHashSatWithExpectedSize(int) instead
java.util.LinkedHashSet#<init>(int, float) @ Use com.google.collect.Sets#newLinkedHashSatWithExpectedSize(int) instead
java.util.LinkedList @ Use ArrayList or ArrayDeque instead
java.util.Random#<init>() @ Use ThreadLocalRandom.current() or the constructor with a seed (the latter in tests only!)
java.lang.Math#random() @ Use ThreadLocalRandom.current()
java.util.regex.Pattern#matches(java.lang.String,java.lang.CharSequence) @ Use String.startsWith(), endsWith(), contains(), or compile and cache a Pattern explicitly
org.apache.commons.io.FileUtils#getTempDirectory() @ Use org.junit.rules.TemporaryFolder for tests instead
org.apache.commons.io.FileUtils#deleteDirectory(java.io.File) @ Use org.apache.druid.java.util.common.FileUtils#deleteDirectory()
org.apache.commons.io.FileUtils#forceMkdir(java.io.File) @ Use org.apache.druid.java.util.common.FileUtils.mkdirp instead
java.lang.Class#getCanonicalName() @ Class.getCanonicalName can return null for anonymous types, use Class.getName instead.
com.google.common.base.Objects#firstNonNull(java.lang.Object, java.lang.Object) @ Use org.apache.druid.common.guava.GuavaUtils#firstNonNull(java.lang.Object, java.lang.Object) instead (probably... the GuavaUtils method return object is nullable)

@defaultMessage Use Locale.ENGLISH
com.ibm.icu.text.DateFormatSymbols#<init>()
com.ibm.icu.text.SimpleDateFormat#<init>()
com.ibm.icu.text.SimpleDateFormat#<init>(java.lang.String)

@defaultMessage For performance reasons, use the utf8Base64 / encodeBase64 / encodeBase64String / decodeBase64 / decodeBase64String methods in StringUtils
org.apache.commons.codec.binary.Base64
com.google.common.io.BaseEncoding#base64()

@defaultMessage Use com.google.errorprone.annotations.concurrent.GuardedBy
javax.annotation.concurrent.GuardedBy
com.amazonaws.annotation.GuardedBy