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java.lang.Object | +----java.lang.Throwable | +----java.lang.Exception | +----java.lang.RuntimeException | +----com.sun.java.util.collections.ConcurrentModificationException
For example, it is not permssible for one thread to modify a Collection while another thread is iterating over it. In general, the results of the iteration are undefined under these circumstances. Some Iterator implementations (including those of all the collection implementations provided by the JDK) may choose to throw this exception if this behavior is detected. Iterators that do this are known as fail-fast iterators, as they fail quickly and cleanly, rather that risking arbitrary, non-deterministic behavior at an undetermined time in the future.
public ConcurrentModificationException()
public ConcurrentModificationException(String message)
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