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- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
- InputStream (java.io)
A readable source of bytes.Most clients will use input streams that read data
from the file system (
- Runnable (java.lang)
Represents a command that can be executed. Often used to run code in a different
Thread.
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
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TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
- IsNull (org.hamcrest.core)
Is the value null?
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