Java heap space error

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Azura Hashim
Azura Hashim 2019 年 10 月 20 日
回答済み: Swastik Sanjay Chaudhury 2020 年 1 月 3 日
Hi,
Got the error below:
Exception in thread "Thread-35": java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:3236)
at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:118)
at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:153)
at com.ib.client.EMessage.<init>(EMessage.java:18)
at com.ib.client.EReader.readSingleMessage(EReader.java:138)
at com.ib.client.EReader.putMessageToQueue(EReader.java:83)
at com.ib.client.EReader.run(EReader.java:61)
Tried using the java heap clean I found on this forum (see below) but didnt' help. Any other tips please? Thanks.
function [] = jheapcl(verbose)
if nargin < 1
verbose = 0;
end
org.dt.matlab.utilities.JavaMemoryCleaner.clear(verbose)

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回答 (1 件)

Swastik Sanjay Chaudhury
Swastik Sanjay Chaudhury 2020 年 1 月 3 日
Hello Azura,
Usually the problem can happen if Java Heap Memory set for MATLAB is too low. Please try increasing the java heap space following the Article mentioned below or start MATLAB in -nojvm mode.
Heap space: https://www.mathworks.com/help/matlab/matlab_external/java-heap-memory-preferences.html
-nojvm mode: https://www.mathworks.com/help/matlab/matlab_env/commonly-used-startup-options.html

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