
Rotate the wheel


[source,java]

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code
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+++<u>Explain:</u>+++


Travel a tree


[source,java]

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code
----

+++<u>Explain:</u>+++


Queue a task


[source,java]

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code
----

+++<u>Explain:</u>+++


GroovyAppState


[source,java]

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code
----

+++<u>Explain:</u>+++


ClosureCondition


[source,java]

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code
----

+++<u>Explain:</u>+++

