How to debug SSL issues like InvalidAlgorithmParameterException

SSL issues are common while working on enterprise applications, but their debugging is not easy. Mostly due to not having enough information in logs.

For example, you will get an exception like this for various reasons – I/O error: Error constructing implementation.

An exception stack trace may look like this:

com.howtodoinjava.aav.exception.SystemException: I/O error: java.lang.RuntimeException: Unexpected error: the trustAnchors parameter must be non-empty; nested exception is java.lang.RuntimeException: Unexpected error: 
the trustAnchors parameter must be non-empty
	at com.howtodoinjava.aav.profilemaintenance.dao.impl.ClassName.methodName(
	at com.howtodoinjava.aav.profilemaintenance.dao.impl.ClassName$$FastClassByCGLIB$$581a61ad.invoke()
	at net.sf.cglib.proxy.MethodProxy.invoke(
	at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
	at com.howtodoinjava.ecom.common.web.transaction.aop.RequestTraceInterceptor.invoke(
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
	at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(
	at com.howtodoinjava.aav.profilemaintenance.dao.impl.ClassName$$EnhancerByCGLIB$$233d14.methodName()
	at com.howtodoinjava.aav.profilemaintenance.service.impl.classImpl.methodName(
	at com.howtodoinjava.idp.ptui.web.action.DemoAction.execute(
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(
	at java.lang.reflect.Method.invoke(


Well, as I said that there could be N number of reasons for these error. Some of them may be:

  • file not found
  • wrong password
  • wrong keystore type
  • wrong cert locations



To solve this SSL exception, you must get more information which can tell exactly what is going on. To get that information, enable SSL debug logging by passing runtime argument to your server/program.

After passing this flag, your will see extensively detailed logs related to your SSL issue and mostly It will tell you the exact root cause as well.

Happy Learning !!

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