Comments (3)
headius
commented on July 30, 2024
The relevant bit of the JVM exception trace from JRuby is shown below:
java.nio.BufferOverflowException
at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189)
at org.jruby.util.IOChannel.read(IOChannel.java:93)
at org.jruby.util.IOChannel$IOReadableByteChannel.read(IOChannel.java:151)
at org.jruby.RubyIO.transfer(RubyIO.java:4454)
at org.jruby.RubyIO.copy_stream(RubyIO.java:4345)
at org.jruby.RubyIO$INVOKER$s$0$2$copy_stream.call(RubyIO$INVOKER$s$0$2$copy_stream.gen)
at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodN.call(JavaMethod.java:819)
at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:211)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:203)
at Users.headius.projects.jruby.lib.ruby.stdlib.net.http.generic_request.invokeOther21:copy_stream(/Users/headius/projects/jruby/lib/ruby/stdlib/net/http/generic_request.rb:212)
...
Because readpartial returned more data than requested, we are forced to raise an error from our IOReadableByteChannel (which wraps an IO-like object with a JVM IO Channel) since there's simply nowhere in the buffer to put it.
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headius
commented on July 30, 2024
FWIW the new error that JRuby will raise in this case:
(IOError) error calling WEBrick::HTTPRequest#readpartial: requested 8192 but received 65536
This error ends up getting swallowed by net/http plumbing, but the result is the same.
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headius
commented on July 30, 2024
The change in #45 does appear to fix this issue.
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