In my web application i am using ldap authentication. I am using tomcat 5.5
with jdk 1.4. From some days when I try to login it throw the following
error and rest of the time it works fine. What can be the issue...

 javax.net.ssl.SSLException: Algorithm missing:  
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.f(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SunJSSE_ax.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SunJSSE_az.j(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SunJSSE_az.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SunJSSE_az.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SunJSSE_ax.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.j(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.b(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown
Source)
        at
com.xxx.cat.fndt.auth.impl.ssl.TrustingSSLSocketFactory.getSSLSocket(TrustingSSLSocketFactory.java:147)
        at
com.xxx.cat.fndt.auth.impl.ssl.TrustingSSLSocketFactory.makeSocket(TrustingSSLSocketFactory.java:209)
        at 
netscape.ldap.LDAPConnSetupMgr.connectServer(LDAPConnSetupMgr.java:411)
        at netscape.ldap.LDAPConnSetupMgr.openSerial(LDAPConnSetupMgr.java:343)
        at netscape.ldap.LDAPConnSetupMgr.connect(LDAPConnSetupMgr.java:237)
        at 
netscape.ldap.LDAPConnSetupMgr.openConnection(LDAPConnSetupMgr.java:163)
        at netscape.ldap.LDAPConnection.connect(LDAPConnection.java:1033)
        at netscape.ldap.LDAPConnection.connect(LDAPConnection.java:915)
        at netscape.ldap.LDAPConnection.connect(LDAPConnection.java:759)
        at
com.xxx.cat.fndt.auth.impl.ldap.LDAPAuthenticationInterface.getConnection(LDAPAuthenticationInterface.java:309)
        at
com.xxx.cat.fndt.auth.impl.ldap.LDAPAuthenticationInterface.getAuthenticatedConnection(LDAPAuthenticationInterface.java:248)
        at
com.xxx.cat.fndt.auth.impl.ldap.LDAPAuthenticationInterface.authenticate(LDAPAuthenticationInterface.java:69)
        at
com.xxx.xx.svc.qoms.model.service.AdminManagerImpl.authenticateUser(AdminManagerImpl.java:71)
        at
com.xxx.xx.svc.qoms.controller.QomsLogn010InptController.onSubmit(QomsLogn010InptController.java:207)
        at
org.springframework.web.servlet.mvc.SimpleFormController.processFormSubmission(SimpleFormController.java:267)
        at
org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal(AbstractFormController.java:250)
        at
com.xxx.xx.svc.qoms.controller.QomsLogn010InptController.handleRequestInternal(QomsLogn010InptController.java:160)
        at
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
        at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
        at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:857)
        at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:792)
        at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:475)
        at
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:440)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at 
com.xxx.xx.fndt.filter.BlackoutFilter.doFilter(BlackoutFilter.java:257)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xxx.xx.fndt.filter.PropertiesFilter.doFilter(PropertiesFilter.java:178)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at com.xxx.xx.fndt.filter.LoggingFilter.doFilter(LoggingFilter.java:152)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xxx.xx.fndt.filter.RequestHeadersFilter.doFilter(RequestHeadersFilter.java:104)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
com.xxx.xx.fndt.filter.ExceptionHandlerFilter.doFilter(ExceptionHandlerFilter.java:105)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
        at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
        at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Unknown Source)
Caused by: java.security.NoSuchAlgorithmException: Could not create cipher
AES/128
        at com.sun.net.ssl.internal.ssl.CipherBox$JCECipherBox.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SunJSSE_h.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.CipherSuite$BulkCipher.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SunJSSE_ax.c(Unknown Source)
        ... 64 more
Caused by: java.security.NoSuchAlgorithmException: No implementation for
AES/CBC/NoPadding found
        at com.sun.net.ssl.internal.ssl.SunJSSE_i.d(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SunJSSE_i.a(Unknown Source)
        at com.sun.net.ssl.internal.ssl.CipherBox$JCECipherBox.<init>(Unknown
Source)
        ... 68 more

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