Skip to content

Avoid deprecated Class.newInstance in favor of constructor-based instantiation [SPR-14486] #19055

Closed
@spring-projects-issues

Description

@spring-projects-issues

Juergen Hoeller opened SPR-14486 and commented

As of JDK 9, Class.newInstance() is deprecated in favor of Constructor.newInstance(), with the latter throwing InvocationTargetException instead of simply propagating user exceptions to the caller. Let's use this as an opportunity to revise our remaining use of Class.newInstance(), in particular our remaining use of BeanUtils.instantiate(Class) which is based on it (in contrast to BeanUtils.instantiateClass(Class which explicitly uses the default constructor).

Along the same line, Proxy.getProxyClass and XMLReaderFactory.createXMLReader are in JDK 9 now as well. While we have no immediate replacement for those yet, we seem to be able to keep using them under our conditions (within the same ClassLoader). Those spots need to be marked as @SuppressWarnings("deprecated") though in order for our build to work on JDK 9 (with -Werror).


Issue Links:

Metadata

Metadata

Assignees

Labels

in: coreIssues in core modules (aop, beans, core, context, expression)type: enhancementA general enhancement

Type

No type

Projects

No projects

Milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions