When using this basetest all extremes are tested.<br> It will test the Date, Calendar and Object-implementation<br> lastRoundDownDate should round dow

Returns either the passed in CharSequence, or if the CharSequence is {@link #isBlank(CharSequence) blank} (whitespaces, empty ({@code ""}), or {@code

Finds active threads with the specified name. @param threadName The thread name. @return The threads with the specified name or an empty collection i

Calls {@link String#getBytes(Charset)} in a null-safe manner. @param string input string. @param charset The {@link Charset} to encode the {@link Str

Gets the maximum value in this range. @return the maximum value in this range, not null.

Transforms the passed in type to a {@link Class} object. Type-checking method of convenience. @param parameterizedType the type to be converted. @ret

Creates a reduced {@link Fraction} instance with the 2 parts of a fraction Y/Z. <p> For example, if the input parameters represent 2/4, then the creat

Gets the time zone used by this parser. <p> The default {@link TimeZone} used to create a {@link Date} when the {@link TimeZone} is not specified by

Tests whether the character is ASCII 7 bit numeric. <pre> CharUtils.isAsciiNumeric('a') = false CharUtils.isAsciiNumeric('A') = false CharUti

Tests if the CharSequence contains only ASCII printable characters. <p> {@code null} will return {@code false}. An empty CharSequence (length()=0) wi

Tests if the CharSequence contains mixed casing of both uppercase and lowercase characters. <p> {@code null} will return {@code false}. An empty Char

Tests if the CharSequence contains only Unicode digits. A decimal point is not a Unicode digit and returns false. <p> {@code null} will return {@code

Delegates to {@link Array#newInstance(Class,int)} using generics. @param <T> The array type. @param componentType The array class. @param length the

Sets the text to be appended when null is added. @param nullText the null text, null means no append. @return {@code this} instance.

Initializes a shutdown. After that the object cannot be used anymore. This method can be invoked an arbitrary number of times. All invocations after t

Converts a {@link String} to a {@code float}, returning {@code 0.0f} if the conversion fails. <p> If the string {@code str} is {@code null}, {@code 0

Converts the character to the Integer it represents, throwing an exception if the character is not numeric. <p>This method converts the char '1' to t

Uncapitalizes all the whitespace separated words in a String. Only the first character of each word is changed. <p>Whitespace is defined by {@link Ch

Adds a new {@link BackgroundInitializer} to this object. When this {@link MultiBackgroundInitializer} is started, the given initializer will be proces

Converts all the whitespace separated words in a String into capitalized words, that is each word is made up of a titlecase character and then a serie

Compares the pair based on the left element followed by the right element. The types must be {@link Comparable}. @param other the other pair, not nu

Compares given {@code string} to a CharSequences vararg of {@code searchStrings}, returning {@code true} if the {@code string} is equal to any of the

Gets the nTh element of an array or null if the index is out of bounds or the array is null. @param <T> The type of array elements. @param array The

Gets the number of hours within the fragment. All date fields greater than the fragment will be ignored. <p>Asking the hours of any date will only re

Gets the number of minutes within the fragment. All date fields greater than the fragment will be ignored. <p>Asking the minutes of any date will onl

Creates a new instance based on the current time in the default time zone with the default {@link Category#FORMAT} locale. @return a new instance. @s

Gets a method whether or not it's accessible. If no such method can be found, return {@code null}. @param cls The class that will be subje

Gets the minimum value in this range. @return the minimum value in this range, not null.

Tests if the operating system matches the given name prefix and version prefix. <p> The result depends on the value of the {@link #OS_NAME} and {@link

Converts an int into an array of char using the default (little-endian, LSB0) byte and bit ordering. @param src the int to convert. @param srcPos

Finds the last index within a CharSequence, handling {@code null}. This method uses {@link String#lastIndexOf(String)} if possible. <p> A {@code null

Converts a long into an array of byte using the default (little-endian, LSB0) byte and bit ordering. @param src the long to convert. @param srcPos

Converts a long into an array of char using the default (little-endian, LSB0) byte and bit ordering. @param src the long to convert. @param srcPo

Validate that the specified argument iterable is neither {@code null} nor contains any elements that are {@code null}; otherwise throwing an exception

Overlays part of a String with another String. <p> A {@code null} string input returns {@code null}. A negative index is treated as zero. An index gr

Removes all occurrences of a character from within the source string. <p> A {@code null} source string will return {@code null}. An empty ("") source

Removes each substring of the source String that matches the given regular expression using the DOTALL option. This call is a {@code null} safe equiv

Sets the default {@link ToStringStyle} to use. <p>This method sets a singleton default value, typically for the whole JVM. Changing this default shou

Updates the length of the builder by either dropping the last characters or adding filler of Unicode zero. @param length the length to set to, must

Strips any of a set of characters from the start of a String. <p> A {@code null} input String returns {@code null}. An empty string ("") input return

Outputs an array as a String, treating {@code null} as an empty array. <p> Multi-dimensional arrays are handled correctly, including multi-dimensional

{@inheritDoc}

Appends a boolean value followed by a new line to the string builder. @param value the value to append. @return {@code this} instance. @since 2.3

Sets the current time to be used by this test object for the next operation. @param time the time to set @return a reference to this object

This method will return the result of the calculation and cache it, if it has not previously been calculated. <p> This cache will also cache exceptio

Counts how many times the char appears in the given string. <p> A {@code null} or empty ("") String input returns {@code 0}. </p> <pre> StringUtils.

Case-insensitive check if a CharSequence ends with a specified suffix. <p> {@code null}s are handled without exceptions. Two {@code null} references

Gets an accessible method (that is, one that can be invoked via reflection) that implements the specified Method. If no such method can be found, retu

Gets the enum for the class, returning {@code null} if not found. <p>This method differs from {@link Enum#valueOf} in that it does not throw an excep

Gets the number of milliseconds within the fragment. All date fields greater than the fragment will be ignored. <p>Asking the milliseconds of any dat

Gets the number of seconds within the fragment. All date fields greater than the fragment will be ignored. <p>Asking the seconds of any date will onl

Gets the message using {@link String#format(String, Object...) String.format(message, values)} if the values are not empty, otherwise return the messa

Appends the toString that would be produced by {@link Object} if a class did not override toString itself. {@code null} will throw a NullPointerExcept

Calculate the intersection of {@code this} and an overlapping Range. @param other overlapping Range. @return range representing the intersection of {

Validates that the argument can be converted to the specified class, if not, throws an exception. <p>This method is useful when validating that there

Finds the "best guess" middle value among comparables. If there is an even number of total values, the lower of the two middle values will be returned

Similar to <a href="https://www.w3.org/TR/xpath/#function-normalize-space">https://www.w3.org/TR/xpath/#function-normalize -space</a> <p> This functi

Runs the function. @throws E Thrown when the function fails.

Gets the String that is nested in between two instances of the same String. <p> A {@code null} input String returns {@code null}. A {@code null} tag

Returns a new byte array containing all the bits in this bit set. <p> More precisely, if: </p> <ol> <li>{@code byte[] bytes = s.toByteArray();}</li>

Returns the provided value unchanged. This can prevent javac from inlining a constant field, e.g., <pre> public final static boolean MAGIC_FLAG = Obj

Appends to the {@code toString} the field end. @param buffer the {@link StringBuffer} to populate. @param fieldName the field name, typically not

Appends to the {@code toString} the field start. @param buffer the {@link StringBuffer} to populate. @param fieldName the field name.

Appends this builder's new line string to this builder. <p> By default, the new line is the system default from {@link System#lineSeparator()}. </p> <

Appends to the {@code toString} a summary of a {@code boolean} array. @param buffer the {@link StringBuffer} to populate. @param fieldName the fie

When using this basetest all extremes are tested.<br> It will test the Date, Calendar and Object-implementation<br> lastTruncateDate should round down

Deletes the character wherever it occurs in the builder. @param ch the character to delete. @return {@code this} instance.

Returns the value of this MutableDouble as a double. @return the numeric value represented by this object after conversion to type double.

Tests if a CharSequence ends with a specified suffix. <p> {@code null}s are handled without exceptions. Two {@code null} references are considered to

Compares given {@code string} to a CharSequences vararg of {@code searchStrings}, returning {@code true} if the {@code string} is equal to any of the

Compares all Strings in an array and returns the initial sequence of characters that is common to all of them. <p> For example, {@code getCommonPrefi

Gets the enum for the class, returning {@code null} if not found. <p>This method differs from {@link Enum#valueOf} in that it does not throw an excep

Increments this instance's value by 1; this method returns the value associated with the instance immediately after the increment operation. This meth

Invokes a method whose parameter types match exactly the object type. <p> This uses reflection to invoke the method obtained from a call to {@link #g

Tests the current closed state of this circuit breaker. A return value of <strong>true</strong> means that the circuit breaker is currently closed. Th

Constructs an {@link Iterator} over each day in a date range defined by a focus date and range style. <p>For instance, passing Thursday, July 4, 2002

Converts a long into an array of short using the default (little-endian, LSB0) byte and bit ordering. @param src the long to convert. @param srcP

Gets the singleton supplier that always returns null. <p> This supplier never throws an exception. </p> @param <T> Supplied type. @return The NUL sin

Converts the specified primitive Class object to its corresponding wrapper Class object. <p> NOTE: From v2.2, this method handles {@code Void.TYPE},

Gets the singleton instance based on {@link SecureRandom#SecureRandom()} which uses a secure random number generator (RNG) implementing the default ra

Sets whether to test fields recursively, instead of using their equals method, when reflectively comparing objects. String objects, which cache a hash

Subtracts the value of another fraction from the value of this one, returning the result in reduced form. @param fraction the fraction to subtract,

Test if two {@code booleans}s are equal. @param lhs the left-hand side {@code boolean} @param rhs the right-hand side {@code boolean} @return {@cod

Appends a separator if the builder is currently non-empty. The separator is appended using {@link #append(char)}. <p> This method is useful for adding

Appends an iterable placing separators between each value, but not before the first or after the last. Appending a null iterable will have no effect.

Applies a value to a function if the value isn't {@code null}, otherwise the method returns {@code null}. If the value isn't {@code null} then return

Creates a predicate to test if {@code (b < a < c)} or {@code (b > a > c)} where the {@code a} is the tested object. @param b the object to compare to

Creates a new instance of this Tokenizer. The new instance is reset so that it will be at the start of the token list. If a {@link CloneNotSupportedEx