Error: Could not find or load main class uk.ac.man.cs.puzzle.Puzzle Caused by: java.lang.ClassNotFoundException: uk.ac.man.cs.puzzle.Puzzle code example

Example: Error: Could not find or load main class -Djava.library.path=.home.hdoop.hadoop-3.3.0.lib.native

Sounds silly, but if you've copied .bashrc lines from somewhere
check that the quotation marks are like this:
    export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib/native"
and not like this
    export HADOOP_OPTS=”-Djava.library.path=$HADOOP_HOME/lib/native”

...took me some time

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Java Example

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