I want to parse the following String into an OffsetDateTime:
OffsetDateTime test = OffsetDateTime.parse("2021-12-31T23:00:00.000+00:00");
However, this results in an exception:
java.time.format.DateTimeParseException: Text '2021-12-31T23:00:00.000+00:00' could not be parsed: null
at java.base/java.time.format.DateTimeFormatter.createError(DateTimeFormatter.java:2017) ~[na:na]
at java.base/java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1952) ~[na:na]
at java.base/java.time.OffsetDateTime.parse(OffsetDateTime.java:402) ~[na:na]
I have seen answers online where this worked right away and I have tried creating custom formatters, but these return the same error message:
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSZZZZZ");
OffsetDateTime test = OffsetDateTime.parse("2021-12-31T23:00:00.000+00:00", formatter);
I am using Java 11.0.17 on Windows.
Update: It works on colleagues machine, but not mine. It also does not work when I select a different Java version in IntelliJ.
Here is the complete Stacktrace (I added it somewhere randomly in the existing project as the quickest way to test it). The stack trace is from Java 19 where a bit more information is given.
java.time.format.DateTimeParseException: Text '2021-12-31T23:00:00.000+00:00' could not be parsed: Cannot invoke "java.time.temporal.TemporalAccessor.isSupported(java.time.temporal.TemporalField)" because "target" is null
at java.base/java.time.format.DateTimeFormatter.createError(DateTimeFormatter.java:2077) ~[na:na]
at java.base/java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:2012) ~[na:na]
at java.base/java.time.OffsetDateTime.parse(OffsetDateTime.java:404) ~[na:na]
at java.base/java.time.OffsetDateTime.parse(OffsetDateTime.java:389) ~[na:na]
at com.syngenio.fints.FintsServer.process(FintsServer.java:22) ~[main/:na]
at com.syngenio.fis.controller.FintsController.fints(FintsController.java:24) ~[main/:na]
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:578) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1071) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:964) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.23.jar:5.3.23]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:696) ~[tomcat-embed-core-9.0.68.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.23.jar:5.3.23]
at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:72) ~[spring-test-5.3.23.jar:5.3.23]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:779) ~[tomcat-embed-core-9.0.68.jar:4.0.FR]
at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar:5.3.23]
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:201) ~[spring-test-5.3.23.jar:5.3.23]
at com.syngenio.fis.integration.tests.ExemptionDateTest.testExemptionDate(ExemptionDateTest.java:53) ~[test/:na]
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:578) ~[na:na]
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59) ~[junit-4.13.2.jar:4.13.2]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) ~[junit-4.13.2.jar:4.13.2]
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56) ~[junit-4.13.2.jar:4.13.2]
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) ~[junit-4.13.2.jar:4.13.2]
at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84) ~[spring-test-5.3.23.jar:5.3.23]
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366) ~[junit-4.13.2.jar:4.13.2]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) ~[spring-test-5.3.23.jar:5.3.23]
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331) ~[junit-4.13.2.jar:4.13.2]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) ~[junit-4.13.2.jar:4.13.2]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329) ~[junit-4.13.2.jar:4.13.2]
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) ~[junit-4.13.2.jar:4.13.2]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293) ~[junit-4.13.2.jar:4.13.2]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) ~[spring-test-5.3.23.jar:5.3.23]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) ~[spring-test-5.3.23.jar:5.3.23]
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) ~[junit-4.13.2.jar:4.13.2]
at org.junit.runners.ParentRunner.run(ParentRunner.java:413) ~[junit-4.13.2.jar:4.13.2]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) ~[spring-test-5.3.23.jar:5.3.23]
at org.junit.runner.JUnitCore.run(JUnitCore.java:137) ~[junit-4.13.2.jar:4.13.2]
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69) ~[junit-rt.jar:na]
at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) ~[junit-rt.jar:na]
at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) ~[idea_rt.jar:na]
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) ~[junit-rt.jar:na]
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) ~[junit-rt.jar:na]
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) ~[junit-rt.jar:na]
Caused by: java.lang.NullPointerException: Cannot invoke "java.time.temporal.TemporalAccessor.isSupported(java.time.temporal.TemporalField)" because "target" is null
at java.base/java.time.format.Parsed.crossCheck(Parsed.java:707) ~[na:na]
at java.base/java.time.format.Parsed.crossCheck(Parsed.java:698) ~[na:na]
at java.base/java.time.format.Parsed.resolve(Parsed.java:267) ~[na:na]
at java.base/java.time.format.DateTimeParseContext.toResolved(DateTimeParseContext.java:331) ~[na:na]
at java.base/java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:2112) ~[na:na]
at java.base/java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:2008) ~[na:na]
... 64 common frames omitted
We found the problem:
The call was made inside an integration test where LocalDateTime::now was mocked. By default, MockedStatic does not keep the other methods, so things like LocalDateTime::of just return null (very unintuitive design decision imo). Behind the scenes, the parser obviously calls a method by LocalDateTime, resulting in this weird error. Changing Mockito.mockStatic(LocalDateTime.class) to Mockito.mockStatic(LocalDateTime.class, Mockito.CALLS_REAL_METHODS) fixed the problem.