- Java.util.concurrentmodificationexception atlauncher update#
- Java.util.concurrentmodificationexception atlauncher professional#
throwing the exception cannot be guaranteed. the exception may be throw, not must be thrown. Fail-fast operations throw ConcurrentModificationException on a best-effort basis. Note that fail-fast behavior cannot be guaranteed as it is, generally speaking, impossible to make any hard guarantees in the presence of unsynchronized concurrent modification. If a single thread issues a sequence of method invocations that violates the contract of an object, the object may throw this exception. Note that this exception does not always indicate that an object has been concurrently modified by a different thread. This exception may be thrown by methods that have detected concurrent modification of an object when such modification is not permissible. The documentation of ConcurrentModificationException says: So erroneous use of the Collection does not always result in a thrown ConcurrentModificationException. However, it is in general not possible and practical to guarantee detection of all concurrent modifications. To help programmers, some implementations of those Collection classes attempt to detect erroneous concurrent modification, and throw a ConcurrentModificationException if they detect it. Using only one thread it is possible to create an iterator for the Collection (using erator(), or an enhanced for loop), start iterating (using Iterator.next(), or equivalently entering the body of the enhanced for loop), modify the Collection, then continue iterating. That unfortunately suggests the only possible cause is simultaneous modification by multiple threads, but that is not so. The Java library calls an attempt to modify a Collection while iterating through it a "concurrent modification". A confirmation email will be sent to your email address.Modification of a Collection while iterating through that Collection using an Iterator is not permitted by most of the Collection classes. Click on "Continue" to confirm your purchase. Choose the payment method, and then enter your credit card details. Check the "I agree to the terms and conditions" box, and then click on "Continue". Enter your email address to create an account or log in with an existing account. Choose your delivery address (regular or hotel) and write the address information. Java.util.concurrentmodificationexception atlauncher update#
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Java.util.concurrentmodificationexception atlauncher professional#
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