NullPointerException in PKeyEC.java when calling Net::SSH.start #105
Description
Moved from the jruby issue tracker: jruby/jruby/issues/4129
Environment
$ jruby -v
jruby 9.1.4.0 (2.3.1) 2016-09-01 2e1327f Java HotSpot(TM) 64-Bit Server VM 25.77-b03 on 1.8.0_77-b03 +jit [darwin-x86_64]
$ uname -a
Darwin marshall-work-lappy.local 15.6.0 Darwin Kernel Version 15.6.0: Thu Jun 23 18:25:34 PDT 2016; root:xnu-3248.60.10~1/RELEASE_X86_64 x86_64
Expected Behavior
Net::SSH.start should be able connect to an SSH server that supports ecdsa-sha2-nistp256 without raising any errors. This worked in 9.1.2.0, but I believe it was because that class of algorithms was not supported (I think because OpenSSL::PKey::EC did not exist at all).
Actual Behavior
irb(main):001:0> require 'net/ssh'
=> true
irb(main):002:0> Gem.loaded_specs['net-ssh'].version
=> #<Gem::Version "3.2.0">
irb(main):003:0> RUBY_DESCRIPTION
=> "jruby 9.1.4.0 (2.3.1) 2016-09-01 2e1327f Java HotSpot(TM) 64-Bit Server VM 25.77-b03 on 1.8.0_77-b03 +jit [darwin-x86_64]"
irb(main):004:0> Net::SSH.start("some-server.example.com", "some_username")
Java::JavaLang::NullPointerException:
from org.jruby.ext.openssl.PKeyEC$Point.initialize(PKeyEC.java:836)
from org.jruby.ext.openssl.PKeyEC$Point$INVOKER$i$0$0$initialize.call(PKeyEC$Point$INVOKER$i$0$0$initialize.gen)
from org.jruby.internal.runtime.methods.JavaMethod$JavaMethodN.call(JavaMethod.java:724)
from org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:368)
from org.jruby.runtime.callsite.CachingCallSite.callBlock(CachingCallSite.java:205)
from org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:209)
from org.jruby.RubyClass.newInstance(RubyClass.java:999)
from org.jruby.RubyClass$INVOKER$i$newInstance.call(RubyClass$INVOKER$i$newInstance.gen)
from org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:205)
from org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:358)
from org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:195)
from org.jruby.ir.interpreter.InterpreterEngine.processCall(InterpreterEngine.java:324)
from org.jruby.ir.interpreter.StartupInterpreterEngine.interpret(StartupInterpreterEngine.java:73)
from org.jruby.ir.interpreter.InterpreterEngine.interpret(InterpreterEngine.java:90)
from org.jruby.internal.runtime.methods.MixedModeIRMethod.INTERPRET_METHOD(MixedModeIRMethod.java:214)
from org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:200)
... 335 levels...
from org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:201)
from org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:197)
from org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:338)
from org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:163)
from Users.mscorcio.$_dot_rbenv.versions.jruby_minus_9_dot_1_dot_4_dot_0.bin.bundle.invokeOther18:load(/Users/mscorcio/.rbenv/versions/jruby-9.1.4.0/bin/bundle:22)
from Users.mscorcio.$_dot_rbenv.versions.jruby_minus_9_dot_1_dot_4_dot_0.bin.bundle.RUBY$script(/Users/mscorcio/.rbenv/versions/jruby-9.1.4.0/bin/bundle:22)
from java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627)
from org.jruby.ir.Compiler$1.load(Compiler.java:111)
from org.jruby.Ruby.runScript(Ruby.java:834)
from org.jruby.Ruby.runNormally(Ruby.java:749)
from org.jruby.Ruby.runNormally(Ruby.java:767)
from org.jruby.Ruby.runFromMain(Ruby.java:580)
from org.jruby.Main.doRunFromMain(Main.java:425)
from org.jruby.Main.internalRun(Main.java:313)
from org.jruby.Main.run(Main.java:242)
from org.jruby.Main.main(Main.java:204)
If I hack net-ssh to exclude all the ecd* algorithms from Net::SSH::Transport::Algorithms::ALGORITHMS and Net::SSH::KnownHosts::SUPPORTED_TYPE I am able to connect to the same server without error.
Also using MRI 2.2.4 and the same version of net-ssh I am able to connect to the same server without error.
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