java.lang.OutOfMemoryError：PermGen 空间 + java [重复]答案

【问题标题】：java.lang.OutOfMemoryError: PermGen space + java [duplicate]java.lang.OutOfMemoryError：PermGen 空间 + java [重复]
【发布时间】：2014-04-17 00:58:17
【问题描述】：

当我要发送带有 FTL teampate 的邮件并附上图像时，我遇到了以下异常。请告知需要做什么

            java.lang.OutOfMemoryError: PermGen space
             at sun.security.provider.certpath.UntrustedChecker.check(UntrustedChecker.java:58)
             at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:117)
             at sun.security.provider.certpath.PKIXCertPathValidator.doValidate(PKIXCertPathValidator.java:330)
             at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:178)
             at java.security.cert.CertPathValidator.validate(CertPathValidator.java:250)
             at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:275)
             at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:263)
             at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:173)
             at sun.security.validator.Validator.validate(Validator.java:218)
             at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:126)
             at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:209)
             at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:249)
             at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1185)
             at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:136)
             at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:593)
             at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:529)
             at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:958)
             at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1203)
             at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:654)
             at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:100)
             at com.sun.mail.util.TraceOutputStream.write(TraceOutputStream.java:101)
             at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
             at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
             at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:1418)
             at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:1408)
             at com.sun.mail.smtp.SMTPTransport.ehlo(SMTPTransport.java:847)
             at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:384)
             at javax.mail.Service.connect(Service.java:297)
             at javax.mail.Service.connect(Service.java:156)
             at javax.mail.Service.connect(Service.java:105)
             at javax.mail.Transport.send0(Transport.java:168)
             at javax.mail.Transport.send(Transport.java:98)
            java.lang.OutOfMemoryError: PermGen space
            Exception in thread "http-bio-8080-exec-17" java.lang.OutOfMemoryError: PermGen space
            Exception in thread "bitronix-scheduler" java.lang.OutOfMemoryError: PermGen space

【问题讨论】：

标签： java heap-memory

【解决方案1】：

这个错误是由PermGen空间引起的，它在执行期间被填满了，你可以针对这个问题做两件事：

首先：通过添加以下参数来增加PermGen的大小：

-XX:MaxPermSize=256m

第二：启用PermGen空间上的GC进行垃圾回收

-XX:+UseConcMarkSweepGC -XX:+CMSPermGenSweepingEnabled -XX:+CMSClassUnloadingEnabled

【讨论】：

OP 注意：这些标志是 jdk、jdk 版本和 jdk 供应商特定的，因此它们可能不会做任何事情。
嘿，谢谢上面的解决方案锻炼我