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Bug
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Resolution: Unresolved
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Minor
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None
https://github.com/jenkinsci/stapler/blob/eec2454ece75afbede274b290fd04a8d2c422d0b/core/src/main/java/org/kohsuke/stapler/RequestImpl.java#L200-L203 attempts to modify a read-only collection: https://docs.oracle.com/javaee/6/api/javax/servlet/ServletRequest.html#getParameterMap()
For example, with the new file upload limits in 2.394 and LTS 2.375.4 / 2.387.1:
java.lang.UnsupportedOperationException at java.util.Collections$UnmodifiableMap.putAll(Collections.java:1465) at org.kohsuke.stapler.RequestImpl.getParameterMap(RequestImpl.java:227) at org.kohsuke.stapler.RequestImpl.getSubmittedForm(RequestImpl.java:1128) at hudson.model.ParametersDefinitionProperty._doBuild(ParametersDefinitionProperty.java:147) at jenkins.model.ParameterizedJobMixIn.doBuild(ParameterizedJobMixIn.java:215) at jenkins.model.ParameterizedJobMixIn$ParameterizedJob.doBuild(ParameterizedJobMixIn.java:411) at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627) at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:397) Caused: java.lang.reflect.InvocationTargetException at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:401) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:409) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:207) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:140) at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:558) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:59) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898) at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:289) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:59) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:694) at org.kohsuke.stapler.Stapler.service(Stapler.java:240) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)