[JAVA] How to use HashMap which causes hang to add atari from log

If the following log to HashMap is observed

Sample1.log


	at java.util.HashMap.findNonNullKeyEntry(HashMap.java:605)
	at java.util.HashMap.putImpl(HashMap.java:701)
	at java.util.HashMap.put(HashMap.java:684)
	at zzz.yyy.xxx.setSomething(SomeUtil.java:nnn)

Sample2.log


	at java.util.HashMap$TreeNode.putTreeVal(HashMap.java:2013)
	at java.util.HashMap.putVal(HashMap.java:648)
	at java.util.HashMap.put(HashMap.java:622)
	at zzz.yyy.xxx.setSomething(SomeUtil.java:nnn)

For an example, take a look at SomeUtil.java or have the developer look at it.

Is HashMap used with proper exclusive control?

HashMap review

-Case where OutOfMemoryError occurs in HashMap -HashMap, infinite loop and synchronized -Is the infinite corridor hidden in Thread and HashMap really interesting? -Infinite loop with static HashMap.put () in multithreading

Exclusive control review

-Exclusive control and that -Let newcomers experience exclusive control by pessimistic lock

Recommended Posts

How to use HashMap which causes hang to add atari from log
[Java] How to use the HashMap class
[Flutter] How to use C / C ++ from Dart?
How to use an array for HashMap keys
How to use Alibaba Cloud LOG Java Producer
How to use Map
How to use rbenv
How to use letter_opener_web
How to use with_option
How to use fields_for
How to use java.util.logging
How to use map
How to use collection_select
How to use Twitter4J
How to use MapStruct
How to use hidden_field_tag
How to use TreeSet
[How to use label]
How to use identity
How to use hashes
How to use JUnit 5
[Beginner] How to use devise Change settings from introduction
How to use Dozer.mapper
How to use Gradle
How to use org.immutables
How to use java.util.stream.Collector
How to use VisualVM
How to use Map
[Rails 5] How to use gem gon ~ How to pass variables from Rails to JS ~
[Java] How to use Map
How to use Chain API
[Java] How to use Map
How to use Priority Queuing
How to add ActionText function
[Rails] How to use enum
How to use java Optional
How to use Ruby return
[Rails] How to use enum
How to use @Builder (Lombok)
How to use java class
How to use Swift UIScrollView
[Java] How to use Optional ②
[Java] How to use removeAll ()
[Java] How to use string.format
How to use rails join
How to use Java Map
Ruby: How to use cookies
How to use dependent :: destroy
How to use Eclipse Debug_Shell
How to use Apache POI
[Rails] How to use validation
How to use Java variables
[Rails] How to use authenticate_user!
[Rails] How to use "kaminari"
How to use GC Viewer
[Java] How to use Optional ①
How to use Lombok now
How to migrate from JUnit4 to JUnit5
How to add HDD to Ubuntu
[Creating] How to use JUnit
[Rails] How to use Scope