Out of metaspace intermittently on Travis #6800
Description
Recently a job for PR #6798 failed in the spec:ruby:fast:jit target with OutOfMemoryError: metaspace:
3)
Syslog.close sets the identity to nil ERROR
Java::JavaLang::OutOfMemoryError: Metaspace
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:763)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
java.net.URLClassLoader.access$100(URLClassLoader.java:73)
java.net.URLClassLoader$1.run(URLClassLoader.java:368)
java.net.URLClassLoader$1.run(URLClassLoader.java:362)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:361)
java.lang.ClassLoader.loadClass(ClassLoader.java:424)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
java.lang.ClassLoader.loadClass(ClassLoader.java:357)
org.jruby.ext.ffi.jffi.DefaultMethodFactory$BufferMarshaller.marshal(DefaultMethodFactory.java:661)
org.jruby.ext.ffi.jffi.BufferNativeInvoker.call(BufferNativeInvoker.java:139)
org.jruby.ext.ffi.jffi.NativeInvoker.call(NativeInvoker.java:71)
org.jruby.ext.ffi.jffi.DefaultMethod.call(DefaultMethod.java:106)
org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:226)
org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:222)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:235)
home.travis.build.jruby.jruby.lib.ruby.stdlib.syslog.invokeOther10:open(/home/travis/build/jruby/jruby/lib/ruby/stdlib/syslog.rb:99)
I have not seen this error before or since.