spring-framework

Spring Framework

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Oliver Gierke 3fb3b7d67a Work around JDK7 String#substring performance regression String#substring has become significantly slower as of JDK 1.7.0_06 [1], such that there are performance degradations by a factor of 100-1000 in ResourceDatabasePopulator, especially for large SQL files. This commit works around this problem by minimizing the substring scope to the least amount possible to prevent unnecessary internal copying of strings (which seems to cause the issue). [1]: http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-May/010257.html Issue: SPR-9781	14 years ago
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main	Work around JDK7 String#substring performance regression	14 years ago
test	Work around JDK7 String#substring performance regression	14 years ago

Oliver Gierke 3fb3b7d67a Work around JDK7 String#substring performance regression

String#substring has become significantly slower as of JDK 1.7.0_06 [1],
such that there are performance degradations by a factor of 100-1000 in
ResourceDatabasePopulator, especially for large SQL files.

This commit works around this problem by minimizing the substring scope
to the least amount possible to prevent unnecessary internal copying of
strings (which seems to cause the issue).

[1]: http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-May/010257.html

Issue: SPR-9781

14 years ago

main

Work around JDK7 String#substring performance regression

14 years ago

test

Work around JDK7 String#substring performance regression

14 years ago