title: Unable to make field static final boolean java.math.BigDecimal
body: <p>I have a Spring Feign client which is sending POJO object to remote endpoint using POST:</p>
  <pre><code>SaleRequestFactory obj = new SaleRequestFactory();
          obj.setId(insertedTransaction.getId());
          obj.setAmount(wpfRequestDTO.getAmount());
  </code></pre>
  <p>DTO:</p>
  <pre><code>@Getter
  @Setter
  @NoArgsConstructor
  @AllArgsConstructor
  @Builder(toBuilder = true)
  public class SaleRequestFactory implements Serializable {
  
      private static final long serialVersionUID = 1744050117179344127L;
      
      private BigDecimal amount;  
  }
  
  
  @FeignClient(name = &quot;remote-service&quot;)
  public interface NetClient {
  
      @RequestMapping(method = RequestMethod.POST, value = &quot;/engine/sale&quot;, consumes = MediaType.APPLICATION_JSON_VALUE)
      SaleResponseFactory setInitTransaction(SaleRequestFactory saleRequestFactory);
  }
  </code></pre>
  <p><em><strong>Service Controller:</strong></em></p>
  <pre><code>@RequestMapping(method = RequestMethod.POST, value = &quot;/sale&quot;, consumes = MediaType.APPLICATION_JSON_VALUE)
      public ResponseEntity&lt;?&gt; sale(@Valid @RequestBody SaleRequestFactory saleRequestFactory) throws Exception {
  
          System.out.println(&quot;!!!!!!!!!!!!!!!!!!!!! My object: &quot; +
                  ReflectionToStringBuilder.toString(saleRequestFactory, new RecursiveToStringStyle()));
  
          return new ResponseEntity&lt;&gt;(HttpStatus.OK);
      }
  </code></pre>
  <p>When I make a request I get:</p>
  <pre><code>    15:24:03.238 [http-nio-8010-exec-1] DEBUG DispatcherServlet[logResult:1101] - Failed to complete request: java.lang.reflect.InaccessibleObjectException: Unable to make field static final boolean java.math.BigDecimal.$assertionsDisabled accessible: module java.base does not &quot;opens java.math&quot; to unnamed module @2a098129
  15:24:03.244 [http-nio-8010-exec-1] ERROR [dispatcherServlet][log:175] - Servlet.service() for servlet [dispatcherServlet] in context with path [/engine] threw exception [Request processing failed; nested exception is java.lang.reflect.InaccessibleObjectException: Unable to make field static final boolean java.math.BigDecimal.$assertionsDisabled accessible: module java.base does not &quot;opens java.math&quot; to unnamed module @2a098129] with root cause
  java.lang.reflect.InaccessibleObjectException: Unable to make field static final boolean java.math.BigDecimal.$assertionsDisabled accessible: module java.base does not &quot;opens java.math&quot; to unnamed module @2a098129
          at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
          at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
          at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:177)
          at java.base/java.lang.reflect.AccessibleObject.setAccessible(AccessibleObject.java:130)
          at org.apache.commons.lang3.builder.ReflectionToStringBuilder.appendFieldsIn(ReflectionToStringBuilder.java:645)
          at org.apache.commons.lang3.builder.ReflectionToStringBuilder.toString(ReflectionToStringBuilder.java:840)
          at org.apache.commons.lang3.builder.ReflectionToStringBuilder.toString(ReflectionToStringBuilder.java:313)
          at org.apache.commons.lang3.builder.ReflectionToStringBuilder.toString(ReflectionToStringBuilder.java:166)
          at org.apache.commons.lang3.builder.RecursiveToStringStyle.appendDetail(RecursiveToStringStyle.java:73)
          at org.apache.commons.lang3.builder.ToStringStyle.appendInternal(ToStringStyle.java:579)
          at org.apache.commons.lang3.builder.ToStringStyle.append(ToStringStyle.java:466)
          at org.apache.commons.lang3.builder.ToStringBuilder.append(ToStringBuilder.java:860)
          at org.apache.commons.lang3.builder.ReflectionToStringBuilder.appendFieldsIn(ReflectionToStringBuilder.java:654)
          at org.apache.commons.lang3.builder.ReflectionToStringBuilder.toString(ReflectionToStringBuilder.java:840)
          at org.apache.commons.lang3.builder.ReflectionToStringBuilder.toString(ReflectionToStringBuilder.java:313)
          at org.apache.commons.lang3.builder.ReflectionToStringBuilder.toString(ReflectionToStringBuilder.java:166)
          at org.engine.rest.PaymentController.sale(PaymentController.java:42)
          at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
          at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.base/java.lang.reflect.Method.invoke(Method.java:567)
          at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
          at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
          at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
          at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878)
          at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792)
          at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
          at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
          at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
          at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
          at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
          at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
          at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
          at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:209)
          at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
          at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
          at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
          at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
          at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
          at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
          at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
          at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)
          at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
          at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
          at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
          at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
          at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
          at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
          at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
          at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
          at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
          at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
          at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
          at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
          at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
          at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
          at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)
          at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707)
          at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
          at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
          at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
          at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
          at java.base/java.lang.Thread.run(Thread.java:831)
  15:24:03.253 [http-nio-8010-exec-1] DEBUG AntPathRequestMatcher[matches:167] - Request '/error' matched by universal pattern '/**'
  </code></pre>
  <p>Do you know how I can solve this issue?</p>