[rocketmq-logstash-input] input settings codec => json error

Failed to execute action {:action=>LogStash::PipelineAction::Create/pipeline_id:main,
:exception=>"Java::JavaLang::IllegalStateException",
:message=>"Unable to configure plugins: java.lang.IllegalStateException: Setting value for 'codec' of type 'class org.jruby.gen.RubyObject20'
incompatible with defined type of 'interface co.elastic.logstash.api.Codec'",
:backtrace=>["org.logstash.config.ir.CompiledPipeline.(CompiledPipeline.java:119)",
"org.logstash.execution.JavaBasePipelineExt.initialize(JavaBasePipelineExt.java:86)",
"org.logstash.execution.JavaBasePipelineExt$INVOKER$i$1$0$initialize.call(JavaBasePipelineExt$INVOKER$i$1$0$initialize.gen)",
"org.jruby.internal.runtime.methods.JavaMethod$JavaMethodN.call(JavaMethod.java:837)",
"org.jruby.ir.runtime.IRRuntimeHelpers.instanceSuper(IRRuntimeHelpers.java:1169)",
"org.jruby.ir.runtime.IRRuntimeHelpers.instanceSuperSplatArgs(IRRuntimeHelpers.java:1156)",
"org.jruby.ir.targets.InstanceSuperInvokeSite.invoke(InstanceSuperInvokeSite.java:39)",
"usr.share.logstash.logstash_minus_core.lib.logstash.java_pipeline.RUBY$method$initialize$0(/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:47)",
"org.jruby.internal.runtime.methods.CompiledIRMethod.call(CompiledIRMethod.java:80)",
"org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:70)",
"org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:333)",
"org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:87)",
"org.jruby.RubyClass.newInstance(RubyClass.java:939)",
"org.jruby.RubyClass$INVOKER$i$newInstance.call(RubyClass$INVOKER$i$newInstance.gen)",
"org.jruby.ir.targets.InvokeSite.invoke(InvokeSite.java:207)",
"usr.share.logstash.logstash_minus_core.lib.logstash.pipeline_action.create.RUBY$method$execute$0(/usr/share/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:52)",
"usr.share.logstash.logstash_minus_core.lib.logstash.pipeline_action.create.RUBY$method$execute$0$__VARARGS__(/usr/share/logstash/logstash-core/lib/logstash/pipeline_action/create.rb:50)",
"org.jruby.internal.runtime.methods.CompiledIRMethod.call(CompiledIRMethod.java:80)",
"org.jruby.internal.runtime.methods.MixedModeIRMethod.call(MixedModeIRMethod.java:70)",
"org.jruby.ir.targets.InvokeSite.invoke(InvokeSite.java:207)",
"usr.share.logstash.logstash_minus_core.lib.logstash.agent.RUBY$block$converge_state$2(/usr/share/logstash/logstash-core/lib/logstash/agent.rb:383)",
"org.jruby.runtime.CompiledIRBlockBody.callDirect(CompiledIRBlockBody.java:138)",
"org.jruby.runtime.IRBlockBody.call(IRBlockBody.java:58)",
"org.jruby.runtime.IRBlockBody.call(IRBlockBody.java:52)",
"org.jruby.runtime.Block.call(Block.java:139)",
"org.jruby.RubyProc.call(RubyProc.java:318)",
"org.jruby.internal.runtime.RubyRunnable.run(RubyRunnable.java:105)",
"java.base/java.lang.Thread.run(Thread.java:829)"]}

Start by reproducing the rocketmq-logstash-input configuration with codec => json and inspect how the plugin declares and receives its codec setting. Use the reported Logstash pipeline configuration error as the baseline; done means the pipeline initializes successfully with the JSON codec.

Written by the indexing model from the issue text.