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- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- TimeZone (java.util)
TimeZone represents a time zone offset, and also figures out daylight savings.
Typically, you get a
- Executors (java.util.concurrent)
Factory and utility methods for Executor, ExecutorService,
ScheduledExecutorService, ThreadFactory,
- SSLHandshakeException (javax.net.ssl)
The exception that is thrown when a handshake could not be completed
successfully.
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- VirtualMachine (com.sun.tools.attach)
A Java virtual machine.
A VirtualMachine represents a Java virtual machine to which this Java vir
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