java.security.NoSuchAlgorithmException: SHA1PRNG SecureRandom not available

环境：ubuntu 14.05+tomcat 8.5.30+JDK 1.8.0_171

现象： java.security.NoSuchAlgorithmException: SHA1PRNG SecureRandom not available

1-May-2018 01:32:06.445 信息 [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.30

  java.security.NoSuchAlgorithmException: SHA1PRNG SecureRandom not available
        at sun.security.jca.GetInstance.getInstance(GetInstance.java:159)
        at java.security.SecureRandom.getInstance(SecureRandom.java:288)
        at org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom(SessionIdGeneratorBase.java:240)
        at org.apache.catalina.util.SessionIdGeneratorBase.getRandomBytes(SessionIdGeneratorBase.java:203)
        at org.apache.catalina.util.StandardSessionIdGenerator.generateSessionId(StandardSessionIdGenerator.java:34)
        at org.apache.catalina.util.SessionIdGeneratorBase.generateSessionId(SessionIdGeneratorBase.java:195)
        at org.apache.catalina.util.SessionIdGeneratorBase.startInternal(SessionIdGeneratorBase.java:289)
        at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:352)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5257)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
        at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1140)
        at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1874)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

        at java.lang.Thread.run(Thread.java:748)

分析原因：

这个错误是查询不到SHA算法，这个算法是在jre下面，查询不到就错误了，缺少jsse.jar。

ls -al /usr/java/jdk1.8.0_171-amd64/jre/lib/jss*

处理过程：

cd /usr/java/jdk1.8.0_171-amd64/jre/lib

unpack200 jsse.pack jsse.jar

重启tomcat