1. Installed Jenkins 2.7.2 wit the help of installer

2. Windows service is running

3. Successfully connected to the Jenkins URL (http://localhost:8081)

Requirement:

I want to install ant plugin and when I tried to upload ant hpi manually thriugh 'Manage plugins' page it was looking for lot of dependent files and hence i chose to install from command prompt which would ease the process.

Hence I typed below command from jenkins installed directory

java -jar jenkins-cli.jar -s http://localhost:8081/ -noCertificateCheck install-plugin http://updates.jenkins.io/download/plugins/ant/1.4/ant.hpi -deploy -restart

Here I'm bypassing the ssl checks since updates.jenkins.io is a https enabled server and the output of above command is as below

Issue: (Output)

Skipping HTTPS certificate checks altogether. Note that this is not secure at all.
Installing a plugin from http://updates.jenkins.io/download/plugins/ant/1.4/ant.hpi

ERROR: Unexpected exception occurred while performing install-plugin command.
java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.jar.JarFile.<init>(Unknown Source)
at java.util.jar.JarFile.<init>(Unknown Source)
at hudson.ClassicPluginStrategy.getShortName(ClassicPluginStrategy.java:114)
at hudson.PluginManager.dynamicLoad(PluginManager.java:787)
at hudson.PluginManager.dynamicLoad(PluginManager.java:775)
at hudson.cli.InstallPluginCommand.run(InstallPluginCommand.java:106)
at hudson.cli.CLICommand.main(CLICommand.java:257)
at hudson.cli.CliManagerImpl.main(CliManagerImpl.java:92)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:884)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:859)
at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:818)
at hudson.remoting.UserRequest.perform(UserRequest.java:153)
at hudson.remoting.UserRequest.perform(UserRequest.java:50)
at hudson.remoting.Request$2.run(Request.java:332)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
at hudson.cli.CliManagerImpl$1.call(CliManagerImpl.java:63)
at hudson.remoting.CallableDecoratorAdapter.call(CallableDecoratorAdapter.java:18)
at hudson.remoting.CallableDecoratorList$1.call(CallableDecoratorList.java:21)
at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)