Revise chomp and fold settings in reference documentation

This commit overrides the `chomp` and `fold` settings for
spring-asciidoctor-backends on a per-block basis.

Closes gh-30001

framework-docs/src/docs/asciidoc/integration/jms.adoc

@@ -582,7 +582,7 @@ a similar contract to the JMS `MessageListener` interface but also gives the mes
 method access to the JMS `Session` from which the `Message` was received.
 The following listing shows the definition of the `SessionAwareMessageListener` interface:
 
-[source,java,indent=0,subs="verbatim,quotes"]
+[source,java,indent=0,subs="verbatim,quotes",chomp="-packages"]
 ----
 	package org.springframework.jms.listener;
 

framework-docs/src/docs/asciidoc/integration/jmx.adoc

@@ -31,7 +31,7 @@ The core class in Spring's JMX framework is the `MBeanExporter`. This class is
 responsible for taking your Spring beans and registering them with a JMX `MBeanServer`.
 For example, consider the following class:
 
-[source,java,indent=0,subs="verbatim,quotes"]
+[source,java,indent=0,subs="verbatim,quotes",chomp="-packages",chomp="-packages"]
 ----
 	package org.springframework.jmx;
 
@@ -358,7 +358,7 @@ an operation or an attribute.
 The following example shows the annotated version of the `JmxTestBean` class that we
 used in <<jmx-exporting-mbeanserver>>:
 
-[source,java,indent=0,subs="verbatim,quotes"]
+[source,java,indent=0,subs="verbatim,quotes",chomp="-packages"]
 ----
 	package org.springframework.jmx;
 
@@ -1067,7 +1067,7 @@ example, consider the scenario where one would like to be informed (through a
 `Notification`) each and every time an attribute of a target MBean changes. The following
 example writes notifications to the console:
 
-[source,java,indent=0,subs="verbatim,quotes"]
+[source,java,indent=0,subs="verbatim,quotes",chomp="-packages"]
 ----
 	package com.example;
 
@@ -1317,7 +1317,7 @@ published, and invoke the `sendNotification(Notification)` on the
 In the following example, exported instances of the `JmxTestBean` publish a
 `NotificationEvent` every time the `add(int, int)` operation is invoked:
 
-[source,java,indent=0,subs="verbatim,quotes"]
+[source,java,indent=0,subs="verbatim,quotes",chomp="-packages"]
 ----
 	package org.springframework.jmx;
 

framework-docs/src/docs/asciidoc/integration/scheduling.adoc

@@ -816,8 +816,7 @@ its properties from the job data mapped to properties of the job instance. So, i
 the `ExampleJob` contains a bean property named `timeout`, and the `JobDetail`
 has it applied automatically:
 
-[source,java,indent=0]
-[subs="verbatim"]
+[source,java,indent=0,subs="verbatim,quotes",chomp="-packages"]
 ----
 	package example;