Applies this function to the given argument. @param value the function argument @return the function result @throws E Thrown when the function fails.

Performs the formatting by applying the rules to the specified calendar. @param calendar the calendar to format. @param buf the buffer to format in

Asserts that if {@code lhs} equals {@code rhs} then their hash codes MUST be identical. @param lhs The Left-Hand-Side of the equals test @param rhs T

Tests whether this version of Java is at least the version of Java passed in. <p> For example: </p> <pre> {@code myVersion.atLeast(JavaVersion.JAVA

Converts binary (represented as boolean array) into a byte using the default (little-endian, LSB0) byte and bit ordering. @param src the binary t

Calls the callable. @return The value returned from the callable @throws E if the callable fails

Closes the given {@link AutoCloseable} as a null-safe operation. @param closeable The resource to close, may be null. @throws Exception if an error o

Gets the matcher for the comma character. @return the matcher for a comma.

Compares two {@code boolean} values. This is the same functionality as provided in Java 7. @param x the first {@code boolean} to compare @param y the

Creates a {@link Double} from a {@link String}. <p> Returns {@code null} if the string is {@code null}. </p> @param str a {@link String} to convert,

Creates an {@link Integer} from a {@link String}. Handles hexadecimal (0xhhhh) and octal (0dddd) notations. A leading zero means octal; spaces are no

Sets the daemon flag for the new {@link BasicThreadFactory} to {@code true} causing a new thread factory to create daemon threads. @return a referenc

Internal method to delete a range without validation. @param startIndex the start index, must be valid. @param endIndex the end index (exclusive),

Deserializes the first object from {@code bytes}.

Gets the matcher for the double quote character. @return the matcher for a double quote.

Compares two objects for equality, where either one or both objects may be {@code null}. <pre> ObjectUtils.equals(null, null) = true

Compares this pair to another based on the two elements. @param obj the object to compare to, null returns false. @return true if the elements of th

Escapes the characters in a {@link String} using EcmaScript String rules. <p>Escapes any values it finds into their EcmaScript String form. Deals corr

Escapes the characters in a {@link String} using XML entities. <p> For example: </p> <pre>{@code "bread" & "butter" }</pre> <p> converts to: </p> <p

Inspects the cause of the specified {@link ExecutionException} and creates a {@link ConcurrentException} with the checked cause if necessary. This met

Inspects the cause of the specified {@link ExecutionException} and creates a {@link ConcurrentRuntimeException} with the checked cause if necessary. T

Formats the time gap as a string. <p> The format used is the ISO 8601 period format. </p> <p> This method formats durations using the days and lower f

Gets all fields of the given class and its parents (if any). @param cls the {@link Class} to query @return an array of Fields (possibly em

Gets a {@link List} of all interfaces implemented by the given class and its superclasses. <p> The order is determined by looking through each interf

Invokes a boolean supplier, and returns the result. @param supplier The boolean supplier to invoke. @param <E> The type of checked exception, which t

Gets the content end text. @return the current content end text.

Gets the daemon flag. This flag determines whether newly created threads should be daemon threads. If <strong>true</strong>, this factory object calls

Gets the external {@link ExecutorService} to be used by this class. @return the {@link ExecutorService}.

Gets all fields of the given class and its parents (if any) that are annotated with the given annotation. @param cls the {@link Class} to

Gets the left element from this pair. <p>When treated as a key-value pair, this is the key.</p> @return the left element, may be null.

Gets all class level public methods of the given class that are annotated with the given annotation. @param cls the {@link Class} to query.

Gets the current value for the property named {@code key} as a {@link Path}. <p> If a {@link SecurityException} is caught, the return value is {@code

Provides the message explaining the exception without the contextual data. @see Throwable#getMessage() @return the message @since 3.0.1

Gets a compact stack trace for the root cause of the supplied {@link Throwable}. <p> The output of this method is consistent across JDK versions. It

Gets the split list. @return the list of splits. @since 3.20.0

Gets the Instant this StopWatch was stopped, between the current time and midnight, January 1, 1970 UTC. @return the Instant this StopWatch was stopp

Gets the time this StopWatch was stopped in milliseconds, between the current time and midnight, January 1, 1970 UTC. @return the time this StopWatch

Gets a time formatter instance using the specified style in the default time zone and locale. @param style time style: {@link #FULL}, {@link #LONG},

Gets a TimeZone, looking first for GMT custom ids, then falling back to Olson ids. A GMT custom id can be 'Z', or 'UTC', or has an optional prefix of

Gets the greatest common divisor of the absolute value of two numbers, using the "binary gcd" method which avoids division and modulo operations. See

Handles the specified {@link ExecutionException}. This method calls {@link #extractCause(ExecutionException)} for obtaining the cause of the exception

Gets the hash code for multiple objects. <p> This allows a hash code to be rapidly calculated for a number of objects. The hash code for a single obj

Computes a safe initial capacity for the {@link StringBuilder} used by {@link #replace(String, String, String, int)}. <p> Uses {@code long} arithmetic

Checks if a throwable represents a checked exception @param throwable The throwable to check. @return True if the given Throwable is a che

Tests whether the specified class an inner class or static nested class. @param cls the class to check, may be null. @return {@code true} if the clas

Validates that the argument is an instance of the specified class, if not throws an exception. <p>This method is useful when validating according to

Tests if {@link Processor} is type of Power PC. @return {@code true}. if {@link Processor} is {@link Type#PPC}, else {@code false}.

Tests whether two calendar objects represent the same local time. <p>This method compares the values of the fields of the two objects. In addition, b

Checks if a throwable represents an unchecked exception @param throwable The throwable to check. @return True if the given Throwable is an

Checks if the specified name is a valid enum for the class. <p> This method differs from {@link Enum#valueOf} in that it checks if the name is a vali

Checks if the specified name is a valid enum for the class. <p> This method differs from {@link Enum#valueOf} in that it checks if the name is a vali

Converts a String to lower case as per {@link String#toLowerCase()}. <p> A {@code null} input String returns {@code null}. </p> <pre> StringUtils.lo

Finds the most frequently occurring item. @param <T> type of values processed by this method. @param items to check. @return most populous T, {@code

Internal calculation method. @param val the calendar, not null. @param field the field constant. @param modType type to truncate, round or ceiling

{@inheritDoc} This implementation returns the value passed to the {@code at()} method.

Creates a new Calendar instance. @return a new Calendar instance.

Generates an array of random bytes. @param count the size of the returned array. @return the random byte array. @throws IllegalArgumentException if {

Creates a random string whose length is the number of characters specified. <p> Characters will be chosen from the set of characters which match the

Creates a random string whose length is the number of characters specified. <p> Characters will be chosen from the set of characters which match the

Gets the NOP Consumer singleton. @param <T> type type to consume. @return the NOP Consumer singleton.

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

Obtains a mutable triple of three non-null objects inferring the generic types. @param <L> The left element type. @param <M> The middle element type.

Creates a mutable pair of two non-null objects inferring the generic types. @param <L> The left element type. @param <R> The right element type. @par

Obtains an immutable triple of three non-null objects inferring the generic types. @param <L> The left element type. @param <M> The middle element ty

Converts the specified array of primitive Class objects to an array of its corresponding wrapper Class objects. @param classes the class array to con

Reverses the string builder placing each character in the opposite index. @return {@code this} instance.

Default access superclass workaround. <p> When a {@code public} class has a default access superclass with {@code public} members, these members are a

Sets the content end text. <p> {@code null} is accepted, but will be converted to an empty String. </p> @param contentEnd the new content end text.

Sets the content start text. <p> {@code null} is accepted, but will be converted to an empty String. </p> @param contentStart the new content start

Sets the consumer used to render each element of type {@code T} onto an {@link Appendable}. @param appender The consumer used to render each element

Sets the months field to a date returning a new object. The original {@link Date} is unchanged. @param date the date, not null. @param amount the am

Sets the text to be appended when {@link #appendNewLine() new line} is called. @param newLine the new line text, {@code null} means use the system de

Sets the Object to build a {@code toString} for, not recommended to be null. @param object the Object to build a {@code toString} for, not recommende

Sets a boolean BitField. @param holder the short data containing the bits we're interested in. @param flag indicating whether to set or clear the b

Sets whether to use the class name. @param useClassName the new useClassName flag.

Sets whether to use the identity hash code. @param useIdentityHashCode the new useIdentityHashCode flag.

Sleeps for the given duration without throwing {@link InterruptedException}. <p> The sleep duration may be shorter than the given duration if we catch

Creates a StringBuilder responsible for the indenting. @param spaces how far to indent @return a StringBuilder with {spaces} leading space characters

Converts the FailableStream into an equivalent stream. @return A stream, which will return the same elements, which this FailableStream would return.

Converts the FailableStream into an equivalent stream. @return A stream, which will return the same elements, which this FailableStream would return.

Strips whitespace from the start and end of a String returning an empty String if {@code null} input. <p> This is similar to {@link #trimToEmpty(Stri

Strips whitespace from the start and end of a String returning {@code null} if the String is empty ("") after the strip. <p> This is similar to {@lin