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23 lines
554 B
Java
23 lines
554 B
Java
package org.fenixsoft.jvm.chapter2;
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import java.util.HashSet;
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import java.util.Set;
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/**
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* VM Args:-XX:PermSize=6M -XX:MaxPermSize=6M
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*
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* @author zzm
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*/
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public class RuntimeConstantPoolOOM_1 {
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public static void main(String[] args) {
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// 使用Set保持着常量池引用,避免Full GC回收常量池行为
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Set<String> set = new HashSet<String>();
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// 在short范围内足以让6MB的PermSize产生OOM了
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short i = 0;
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while (true) {
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set.add(String.valueOf(i++).intern());
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}
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}
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}
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