# Cannot login to engine manager, error 500

**URL:** <https://community.wowza.com/t/cannot-login-to-engine-manager-error-500/54034>\
**Category:** Wowza Streaming Engine\
**Created:** [October 6, 2019, 1:38am UTC](https://community.wowza.com/t/cannot-login-to-engine-manager-error-500/54034 "2019-10-06T01:38:14Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![Sobari\_Tanuwijaya](https://avatars.discourse-cdn.com/v4/letter/s/258eb7/32.png) [@Sobari\_Tanuwijaya](https://community.wowza.com/u/Sobari_Tanuwijaya)\
**Post date:** [October 6, 2019, 1:38am UTC](https://community.wowza.com/t/cannot-login-to-engine-manager-error-500/54034/1 "2019-10-06T01:38:14Z")

</div>

Hi,  
A few months a go, I upgrade Wowza to the latest version.

Everything was fine, until today when I try to login to the engine manager to set something.

After login, it gave me the message shown below.

As far as I can comprehend, the error caused by the lost of sunec.jar file.

The question is:

1. Why in the past (before upgrade or after the upgrade) I never got that error?

2. How can I get that file? I had checked that java-1.8.0-openjdk is already installed.

Thanks in advance for the help.

# Status Code: 500

Exception:  
Stacktrace:

```auto
java.lang.InternalError: java.io.FileNotFoundException: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64/jre/lib/ext/sunec.jar
	at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:1052)
	at sun.misc.URLClassPath.getResource(URLClassPath.java:249)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:411)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at sun.security.jca.ProviderConfig$2.run(ProviderConfig.java:215)
	at sun.security.jca.ProviderConfig$2.run(ProviderConfig.java:206)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.security.jca.ProviderConfig.doLoadProvider(ProviderConfig.java:206)
	at sun.security.jca.ProviderConfig.getProvider(ProviderConfig.java:187)
	at sun.security.jca.ProviderList.getProvider(ProviderList.java:233)
	at sun.security.jca.ProviderList.getService(ProviderList.java:331)
	at sun.security.jca.GetInstance.getInstance(GetInstance.java:157)
	at javax.net.ssl.SSLContext.getInstance(SSLContext.java:156)
	at org.restlet.engine.ssl.DefaultSslContextFactory.createSslContext(DefaultSslContextFactory.java:369)
	at org.restlet.ext.httpclient.HttpClientHelper.configure(HttpClientHelper.java:284)
	at org.restlet.ext.httpclient.HttpClientHelper.start(HttpClientHelper.java:513)
	at org.restlet.Client.start(Client.java:186)
	at org.restlet.routing.Filter.start(Filter.java:274)
	at org.restlet.Restlet.handle(Restlet.java:315)
	at org.restlet.routing.Filter.handle(Filter.java:202)
	at org.restlet.resource.ClientResource.handle(ClientResource.java:1104)
	at org.restlet.resource.ClientResource.handleOutbound(ClientResource.java:1188)
	at org.restlet.resource.ClientResource.handle(ClientResource.java:1059)
	at org.restlet.resource.ClientResource.handle(ClientResource.java:1035)
	at org.restlet.resource.ClientResource.handle(ClientResource.java:937)
	at org.restlet.resource.ClientResource.get(ClientResource.java:645)
	at com.wowza.wms.rest.WMSClientResource.get(Unknown Source)
	at com.wowza.wms.rest.ConfigBase.getObjectFromREST(Unknown Source)
	at com.wowza.wms.rest.user.UserConfig.getObjectFromREST(Unknown Source)
	at com.wowza.wms.spring.WowzaAuthenticationProvider.authenticate(WowzaAuthenticationProvider.java:58)
	at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:156)
	at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:174)
	at org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter.attemptAuthentication(UsernamePasswordAuthenticationFilter.java:94)
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:195)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
	at net.winstone.core.FilterConfiguration.execute(FilterConfiguration.java:189)
	at net.winstone.core.SimpleRequestDispatcher.doFilter(SimpleRequestDispatcher.java:321)
	at com.wowza.wms.webapp.Utf8Filter.doFilter(Utf8Filter.java:30)
	at net.winstone.core.FilterConfiguration.execute(FilterConfiguration.java:189)
	at net.winstone.core.SimpleRequestDispatcher.doFilter(SimpleRequestDispatcher.java:321)
	at net.winstone.core.SimpleRequestDispatcher.forward(SimpleRequestDispatcher.java:288)
	at net.winstone.core.listener.RequestHandlerThread.processRequest(RequestHandlerThread.java:213)
	at net.winstone.core.listener.RequestHandlerThread.run(RequestHandlerThread.java:144)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at net.winstone.util.BoundedExecutorService$1.run(BoundedExecutorService.java:81)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.FileNotFoundException: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.222.b10-0.el7_6.x86_64/jre/lib/ext/sunec.jar
	at sun.misc.URLClassPath$JarLoader.getJarFile(URLClassPath.java:938)
	at sun.misc.URLClassPath$JarLoader.access$800(URLClassPath.java:801)
	at sun.misc.URLClassPath$JarLoader$1.run(URLClassPath.java:886)
	at sun.misc.URLClassPath$JarLoader$1.run(URLClassPath.java:879)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.misc.URLClassPath$JarLoader.ensureOpen(URLClassPath.java:878)
	at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:1050)
	... 62 more

```

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