Upgrade to Spring Boot 4.0.0-RC1 #175

xhaggi · 2025-09-24T08:28:38Z

Fixes #174

xhaggi · 2025-09-24T08:32:04Z

@wimdeblauwe In preparation for the upcoming release of Spring Boot 4.0. The PR is currently still a draft and may be updated once Spring Boot 4.0 is released.

...ring-boot/src/test/java/io/github/wimdeblauwe/htmx/spring/boot/mvc/HeaderResultMatchers.java

wimdeblauwe · 2025-09-30T19:51:10Z

Thanks for preparing this. Looks good at first sight. I will test once we get to the first release candidate of Spring Boot 4.

wimdeblauwe · 2025-10-29T06:40:43Z

@xhaggi I updated the branch for Spring Boot 4.0.0-RC1. Could you fix the merge conflict? After that, I will merge and do a 5.0.0-rc.1 release so people can test with it.

htmx-spring-boot-thymeleaf/pom.xml

htmx-spring-boot/pom.xml

…processor

xhaggi · 2025-10-29T08:19:35Z

@xhaggi I updated the branch for Spring Boot 4.0.0-RC1. Could you fix the merge conflict? After that, I will merge and do a 5.0.0-rc.1 release so people can test with it.

Thank you. I pulled your changes, but all tests in HtmxResponseHandlerMethodArgumentResolverIT failed, caused by REST-assured with a strange NullPointerException. I couldn't get it to work with REST-assured, so I removed that client and switched to Spring's RestTestClient. Now everything is green.

java.lang.NullPointerException
	at java.base/java.lang.Class.isAssignableFrom(Native Method)
	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeOnDelegationObject(ClosureMetaClass.java:367)
	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeOnDelegationObjects(ClosureMetaClass.java:335)
	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:324)
	at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:63)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:49)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:171)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:185)
	at io.restassured.internal.RequestSpecificationImpl$_sendHttpRequest_closure27.doCall(RequestSpecificationImpl.groovy:1484)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:338)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:274)
	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:270)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1008)
	at groovy.lang.Closure.call(Closure.java:471)
	at groovy.lang.Closure.call(Closure.java:460)
	at io.restassured.internal.http.HTTPBuilder.doRequest(HTTPBuilder.java:494)
	at io.restassured.internal.http.HTTPBuilder.request(HTTPBuilder.java:453)
	at io.restassured.internal.http.HTTPBuilder$request$2.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:166)
	at io.restassured.internal.RequestSpecificationImpl.sendHttpRequest(RequestSpecificationImpl.groovy:1480)
	at io.restassured.internal.RequestSpecificationImpl.this$2$sendHttpRequest(RequestSpecificationImpl.groovy)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:338)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:274)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1235)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1008)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:793)
	at io.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
	at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:46)
	at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:57)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:49)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:171)
	at io.restassured.internal.RequestSpecificationImpl.sendRequest(RequestSpecificationImpl.groovy:1229)
	at io.restassured.internal.RequestSpecificationImpl.this$2$sendRequest(RequestSpecificationImpl.groovy)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:338)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:274)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1235)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1008)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:793)
	at io.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
	at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:46)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:166)
	at io.restassured.internal.filter.SendRequestFilter.filter(SendRequestFilter.groovy:30)
	at io.restassured.filter.Filter$filter.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at io.restassured.filter.Filter$filter$0.call(Unknown Source)
	at io.restassured.internal.filter.FilterContextImpl.next(FilterContextImpl.groovy:72)
	at io.restassured.filter.time.TimingFilter.filter(TimingFilter.java:56)
	at io.restassured.filter.Filter$filter$0.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at io.restassured.filter.Filter$filter.call(Unknown Source)
	at io.restassured.internal.filter.FilterContextImpl.next(FilterContextImpl.groovy:72)
	at io.restassured.filter.FilterContext$next.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:148)
	at io.restassured.internal.filter.CsrfFilter.filter(CsrfFilter.groovy:89)
	at io.restassured.filter.Filter$filter.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:157)
	at io.restassured.internal.filter.FilterContextImpl.next(FilterContextImpl.groovy:72)
	at io.restassured.filter.FilterContext$next.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:148)
	at io.restassured.internal.RequestSpecificationImpl.applyPathParamsAndSendRequest(RequestSpecificationImpl.groovy:1704)
	at io.restassured.internal.RequestSpecificationImpl.this$2$applyPathParamsAndSendRequest(RequestSpecificationImpl.groovy)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:338)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:274)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1235)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1008)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:793)
	at io.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
	at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:46)
	at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:57)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:49)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:171)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:203)
	at io.restassured.internal.RequestSpecificationImpl.applyPathParamsAndSendRequest(RequestSpecificationImpl.groovy:1710)
	at io.restassured.internal.RequestSpecificationImpl.this$2$applyPathParamsAndSendRequest(RequestSpecificationImpl.groovy)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:338)
	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:274)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1235)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1008)
	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:793)
	at io.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
	at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:46)
	at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:57)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:49)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:171)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:203)
	at io.restassured.internal.RequestSpecificationImpl.get(RequestSpecificationImpl.groovy:172)
	at io.restassured.internal.RequestSpecificationImpl.get(RequestSpecificationImpl.groovy)
	at io.restassured.RestAssured.get(RestAssured.java:721)
	at io.github.wimdeblauwe.htmx.spring.boot.mvc.HtmxResponseHandlerMethodArgumentResolverIT.testPreventHistoryUpdate(HtmxResponseHandlerMethodArgumentResolverIT.java:60)

.../io/github/wimdeblauwe/htmx/spring/boot/mvc/HtmxResponseHandlerMethodArgumentResolverIT.java

xhaggi · 2025-10-29T09:30:03Z

@wimdeblauwe the issues with REST-assured are caused by the upgrade from Groovy 4.x to 5.x in Spring Boot 4. REST-assured relies on Groovy 4.x.

wimdeblauwe · 2025-10-29T11:14:42Z

I guess we can go ahead with RestTestClient instead of Rest-assured for the release now?

xhaggi · 2025-10-29T11:33:53Z

Sure, I would recommend it.

xhaggi marked this pull request as draft September 24, 2025 08:28

xhaggi requested a review from wimdeblauwe September 24, 2025 08:28

xhaggi commented Sep 24, 2025

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...ring-boot/src/test/java/io/github/wimdeblauwe/htmx/spring/boot/mvc/HeaderResultMatchers.java Show resolved Hide resolved

xhaggi force-pushed the feature/spring-boot-4 branch 3 times, most recently from 25286ae to 36434fb Compare September 24, 2025 09:34

xhaggi added this to the 5.0.0 milestone Sep 24, 2025

xhaggi self-assigned this Sep 24, 2025

xhaggi force-pushed the feature/spring-boot-4 branch from 36434fb to 5e74c05 Compare September 24, 2025 10:18

wimdeblauwe mentioned this pull request Oct 29, 2025

Incompatibility with Spring Boot 4.0.0-M1 due to missing WebMvcRegistrations class #174

Closed

xhaggi commented Oct 29, 2025

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htmx-spring-boot-thymeleaf/pom.xml Show resolved Hide resolved

xhaggi commented Oct 29, 2025

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xhaggi commented Oct 29, 2025

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htmx-spring-boot/pom.xml Outdated Show resolved Hide resolved

xhaggi changed the title ~~Upgrade to Spring Boot 4.0~~ Upgrade to Spring Boot 4.0-RC1 Oct 29, 2025

xhaggi force-pushed the feature/spring-boot-4 branch from 92ca147 to ec0f7a8 Compare October 29, 2025 08:08

xhaggi added 3 commits October 29, 2025 09:09

[thymeleaf] get rid of superfluous Spring Security dependencies

0d5427d

[cleanup] remove superfluous dependency on spring-boot-configuration-…

cee0d9f

…processor

[test] move dummy application class to integration test class

1b04667

xhaggi force-pushed the feature/spring-boot-4 branch from ec0f7a8 to 65fae30 Compare October 29, 2025 08:11

xhaggi marked this pull request as ready for review October 29, 2025 08:11

xhaggi commented Oct 29, 2025

View reviewed changes

.../io/github/wimdeblauwe/htmx/spring/boot/mvc/HtmxResponseHandlerMethodArgumentResolverIT.java Outdated Show resolved Hide resolved

xhaggi changed the title ~~Upgrade to Spring Boot 4.0-RC1~~ Upgrade to Spring Boot 4.0.0-RC1 Oct 29, 2025

Upgrade to Spring Boot 4.0.0-RC1

0cb7a7d

xhaggi force-pushed the feature/spring-boot-4 branch from 65fae30 to 0cb7a7d Compare October 29, 2025 08:45

wimdeblauwe merged commit 26826e9 into wimdeblauwe:main Oct 29, 2025
2 checks passed

xhaggi deleted the feature/spring-boot-4 branch November 19, 2025 08:22

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