One line java program that throw 'java.lang.OutOfMemoryError: Java heap space Analysis Eclipse MAT

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Java heap space out of memory -
Java堆的内存空间

StringBuffer keeps everyhing in an char-array, and there is a certain method that increases the char-array-size when finding out that the array does not fit anymore. The method increases the size by at least "2 * currentSize + 2". This may make sense for small sizes, but it's completely a wrong decision for big sizes

Run Java with the command-line option -Xmx, which sets the maximum size of the heap
for eclipse
Right mouse click - Run As - Run Configuration - Arguments - Vm Arguments, then add this -Xmx2048m

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  1. Zariga Tongy
  2. Java (UoA Technology)
  3. Eclipse (Software)
  4. Technology (Professional Field)
  5. jvm
  6. Java (Programming Language)
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Комментарии
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Simple example. Very Clear. Thanks a lot.

ekrishna
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How to identify which class has a bigger object from Dominant tree

Gunjan
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Is heapdump will only generate when we set the argument..?

shabincs
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thanks, but i have permgen space problem i am using spring and hibernate, how can create this issue proggramaticaly and solve it. like above video

balajishinde
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Caused by: java.lang.OutOfMemoryError: Java heap space

dexterellaboratoriodedexte
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One Line Java program throws outofmemory error

zarigatongy