bladex-boot创建流程画流程的页面不出现按钮？

一、该问题的重现步骤是什么？

1. bladex-boot创建流程画流程的页面不出现按钮？

2. Flowable-Design 项目后台报：不良的类型值 long :

 报错如下：

2021-03-26 17:26:24.510 ERROR 12872 --- [ XNIO-1 task-16] io.undertow.request                      : UT005023: Exception handling request to /app/rest/models/ce897a74-8e0c-11eb-8947-2a39269b4d26/editor/json

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException: Error attempting to get column 'thumbnail' from result set.  Cause: org.postgresql.util.PSQLException: 不良的类型值 long : \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
; 不良的类型值 long : \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; nested exception is org.postgresql.util.PSQLException: 不良的类型值 long : \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
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:497) ~[jakarta.servlet-api-4.0.4.jar:4.0.4]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:584) ~[jakarta.servlet-api-4.0.4.jar:4.0.4]
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:124) ~[druid-1.2.1.jar:1.2.1]
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:111) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) ~[undertow-core-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) ~[undertow-core-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) ~[undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) ~[undertow-core-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) ~[undertow-core-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99) [undertow-servlet-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:376) [undertow-core-2.0.33.Final.jar:2.0.33.Final]
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830) [undertow-core-2.0.33.Final.jar:2.0.33.Final]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_221]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_221]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_221]
Caused by: org.springframework.dao.DataIntegrityViolationException: Error attempting to get column 'thumbnail' from result set.  Cause: org.postgresql.util.PSQLException: 不良的类型值 long : \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
; 不良的类型值 long : \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; nested exception is org.postgresql.util.PSQLException: 不良的类型值 long : \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
    at org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLExceptionTranslator.java:104) ~[spring-jdbc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72) ~[spring-jdbc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) ~[spring-jdbc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) ~[spring-jdbc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73) ~[mybatis-spring-2.0.1.jar:2.0.1]
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446) ~[mybatis-spring-2.0.1.jar:2.0.1]
    at com.sun.proxy.$Proxy76.selectOne(Unknown Source) ~[na:na]
    at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) ~[mybatis-spring-2.0.1.jar:2.0.1]
    at org.flowable.ui.modeler.repository.ModelRepositoryImpl.get(ModelRepositoryImpl.java:42) ~[flowable-ui-modeler-logic-6.4.2.jar:6.4.2]
    at org.flowable.ui.modeler.service.ModelServiceImpl.getModel(ModelServiceImpl.java:112) ~[flowable-ui-modeler-logic-6.4.2.jar:6.4.2]
    at org.flowable.ui.modeler.service.ModelServiceImpl$$FastClassBySpringCGLIB$$93d99e9b.invoke(<generated>) ~[flowable-ui-modeler-logic-6.4.2.jar:6.4.2]
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:367) ~[spring-tx-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118) ~[spring-tx-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.flowable.ui.modeler.service.ModelServiceImpl$$EnhancerBySpringCGLIB$$774d2a37.getModel(<generated>) ~[flowable-ui-modeler-logic-6.4.2.jar:6.4.2]
    at org.flowable.ui.modeler.rest.app.ModelResource.getModelJSON(ModelResource.java:157) ~[flowable-ui-modeler-rest-6.4.2.jar:6.4.2]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_221]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_221]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_221]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_221]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    ... 42 common frames omitted
Caused by: org.postgresql.util.PSQLException: 不良的类型值 long : \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
    at org.postgresql.jdbc.PgResultSet.toLong(PgResultSet.java:3043) ~[postgresql-42.2.18.jar:42.2.18]
    at org.postgresql.jdbc.PgResultSet.getLong(PgResultSet.java:2216) ~[postgresql-42.2.18.jar:42.2.18]
    at org.postgresql.jdbc.PgResultSet.getBlob(PgResultSet.java:428) ~[postgresql-42.2.18.jar:42.2.18]
    at org.postgresql.jdbc.PgResultSet.getBlob(PgResultSet.java:414) ~[postgresql-42.2.18.jar:42.2.18]
    at com.alibaba.druid.filter.FilterChainImpl.resultSet_getBlob(FilterChainImpl.java:2257) ~[druid-1.2.1.jar:1.2.1]
    at com.alibaba.druid.filter.FilterAdapter.resultSet_getBlob(FilterAdapter.java:1513) ~[druid-1.2.1.jar:1.2.1]
    at com.alibaba.druid.filter.FilterChainImpl.resultSet_getBlob(FilterChainImpl.java:2255) ~[druid-1.2.1.jar:1.2.1]
    at com.alibaba.druid.filter.stat.StatFilter.resultSet_getBlob(StatFilter.java:759) ~[druid-1.2.1.jar:1.2.1]
    at com.alibaba.druid.filter.FilterChainImpl.resultSet_getBlob(FilterChainImpl.java:2255) ~[druid-1.2.1.jar:1.2.1]
    at com.alibaba.druid.proxy.jdbc.ResultSetProxyImpl.getBlob(ResultSetProxyImpl.java:292) ~[druid-1.2.1.jar:1.2.1]
    at com.alibaba.druid.pool.DruidPooledResultSet.getBlob(DruidPooledResultSet.java:1169) ~[druid-1.2.1.jar:1.2.1]
    at org.apache.ibatis.type.BlobTypeHandler.getNullableResult(BlobTypeHandler.java:40) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.type.BlobTypeHandler.getNullableResult(BlobTypeHandler.java:28) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.type.BaseTypeHandler.getResult(BaseTypeHandler.java:81) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getPropertyMappingValue(DefaultResultSetHandler.java:472) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyPropertyMappings(DefaultResultSetHandler.java:441) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:404) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:354) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:328) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:301) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:194) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:65) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140) ~[mybatis-3.5.1.jar:3.5.1]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:76) ~[mybatis-3.5.1.jar:3.5.1]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_221]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_221]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_221]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_221]
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) ~[mybatis-spring-2.0.1.jar:2.0.1]
    ... 71 common frames omitted

二、你期待的结果是什么？实际看到的又是什么？

出现按钮，可以自定义流程

三、你正在使用的是什么产品，什么版本？在什么操作系统上？

bladex-boot   win10

四、请提供详细的错误堆栈信息，这很重要。

五、若有更多详细信息，请在下面提供。