?????Java??д??δ??????????й?
???????????? ???????[ 2015/4/7 11:07:48 ] ????????Java ???? ???
???????????????????????????????????????????
????class BadKey {
????// no hashCode or equals();
????public final String key;
????public BadKey(String key) { this.key = key; }
????}
????Map map = System.getProperties();
????map.put(new BadKey("key")?? "value"); // Memory leak even if your threads die.
????A4????????????????????????????hashmap??key????/?????????????????????????????????????й???????????????Щ????????Java???????й?????????????????????
????Runtime.addShutdownHook??????????????????removeShutdownHook??????ThreadGroup?????δ???????bug????????????????????ThreadGroup???????й???
??????????δ?????????????????????
?????????????ContextClassLoader??AccessControlContext??????ThreadGroup??InheritedThreadLocal????????????Щ???????????й?????????б???????????????????о????????????ThreadFactory???????????????????j.u.c.Executor???(java.util.concurrent)????????????????????????????????Σ?????????????????????????
????ThreadLocal???棬???????2????????????к?????ThreadLocal?????????????????????????????????????????????????ContextClassLoader??????й????????????????????ThreadLocal???檔
??????ThreadGroup??????????????????????????????ThreadGroup.destroy()?????????й????????????鯔???????????????????????????????顣
???????WeakHashMap??value???(???)????key??????????????????Ρ????????????Weak/SoftReference?????????ж???????????????á?
???????http(s)Э???java.net.URL?????????KeepAliveCache????ThreadGroup?????????????μ??????????????????????й?????д????????????????????????????????п??????й???(??Java7???????????????????????????????????????????????)
???????InflaterInputStream???????(????PNGImageDecoder)?д???new java.util.zip.Inflater()????????inflater??end()????????new?????????????????????????????????????????????????close()??????inflater????????????й??????????????????й????????finalizer????????????????native??棬????linux??oom_killer????????????????????????????????????native?????
????java.util.zip.Deflater???????????????????????????????????????Deflater??????????????Deflater????Inflater??????????end()??
???????????????????????漰???????????????????SPASVOС??(021-61079698-8054)?????????????????????????
??????
Java???????????Щ???????????????Java????????????????Java?б???Map????????Java Web???????????????Java??????????????д?????Java????????7???????????????????????(java .net ?????)???Java??????????Python??????Java webdriver??λ????????′????е?????Java??д??????????????????Java???????????????JavaScript????????????Java?????????????????? Java???????10??????????????Java?м????????????????java???????ü???????????м???????????????????
???·???
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2023/3/23 14:23:39???д?ò??????????
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2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11????????
?????????App Bug???????????????????????Jmeter?????????QC??????APP????????????????app?????е????????jenkins+testng+ant+webdriver??????????????JMeter????HTTP???????Selenium 2.0 WebDriver ??????