The constant BeanInfoSupport.MULTILINE is used to set the attribute value in CompareAssertionBeanInfo (nowhere else currently) but the attribute is never actually used. It looks like its attribute handling was accidentally omitted when the Java 5 work was merged back into the main-line code. The constant was added in r325677, in GenericTestBeanCustomizer.init(). If the attribute is present, then multiLineEditor is set true.
URL: http://svn.apache.org/r1630924 Log: BeanInfoSupport.MULTILINE attribute is not processed Bugzilla Id: 57075 Modified: jmeter/trunk/src/core/org/apache/jmeter/testbeans/BeanInfoSupport.java jmeter/trunk/src/core/org/apache/jmeter/testbeans/gui/GenericTestBeanCustomizer.java jmeter/trunk/xdocs/changes.xml
This issue has been migrated to GitHub: https://github.com/apache/jmeter/issues/3449