我正在使用Message Broker 8和MQ7。当我尝试在消息流中使用映射节点时，出现java.lang.RuntimeException。
这是事件查看器显示的内容：
( BROKER8.default ) The map script generation for QName ''{practica}:CambioFecha'' has failed, with the following details: ''java.lang.RuntimeException: ''.
The generation of the map has failed.
Review and resolve the problems indicated in the message from the map generation.
完整的异常堆栈为：
ExceptionList: ( ['MQROOT' : 0xe052600]
(0x01000000:Name):RecoverableException = (
(0x03000000:NameValue):File = 'F:\build\S000_P\src\DataFlowEngine\PluginInterface\ImbJniNode.cpp' (CHARACTER)
(0x03000000:NameValue):Line = 1170 (INTEGER)
(0x03000000:NameValue):Function = 'ImbJniNode::evaluate' (CHARACTER)
(0x03000000:NameValue):Type = 'ComIbmMSLMappingNode' (CHARACTER)
(0x03000000:NameValue):Name = 'practica/DATAGRAMA#FCMComposite_1_7' (CHARACTER)
(0x03000000:NameValue):Label = 'practica.DATAGRAMA.Cambio Formato Fecha' (CHARACTER)
(0x03000000:NameValue):Catalog = 'BIPmsgs' (CHARACTER)
(0x03000000:NameValue):Severity = 3 (INTEGER)
(0x03000000:NameValue):Number = 2230 (INTEGER)
(0x03000000:NameValue):Text = 'Caught exception and rethrowing' (CHARACTER)
(0x01000000:Name ):RecoverableException = (
(0x03000000:NameValue):File = 'MbErrorHandler.java' (CHARACTER)
(0x03000000:NameValue):Line = 146 (INTEGER)
(0x03000000:NameValue):Function = 'evaluate' (CHARACTER)
(0x03000000:NameValue):Type = '' (CHARACTER)
(0x03000000:NameValue):Name = '' (CHARACTER)
(0x03000000:NameValue):Label = '' (CHARACTER)
(0x03000000:NameValue):Catalog = 'BIPmsgs' (CHARACTER)
(0x03000000:NameValue):Severity = 3 (INTEGER)
(0x03000000:NameValue):Number = 3946 (INTEGER)
(0x03000000:NameValue):Text = 'Caught BrokerXCIStaticException' (CHARACTER)
(0x01000000:Name ):Insert = (
(0x03000000:NameValue):Type = 5 (INTEGER)
(0x03000000:NameValue):Text = '{practica}:CambioFecha' (CHARACTER)
)
(0x01000000:Name ):Insert = (
(0x03000000:NameValue):Type = 5 (INTEGER)
(0x03000000:NameValue):Text = 'java.lang.RuntimeException: ' (CHARACTER)
)
(0x01000000:Name ):RecoverableException = (
(0x03000000:NameValue):File = 'MbErrorHandler.java' (CHARACTER)
(0x03000000:NameValue):Line = 310 (INTEGER)
(0x03000000:NameValue):Function = 'throwableToMbException' (CHARACTER)
(0x03000000:NameValue):Type = '' (CHARACTER)
(0x03000000:NameValue):Name = '' (CHARACTER)
(0x03000000:NameValue):Label = '' (CHARACTER)
(0x03000000:NameValue):Catalog = 'BIPmsgs' (CHARACTER)
(0x03000000:NameValue):Severity = 3 (INTEGER)
(0x03000000:NameValue):Number = 3949 (INTEGER)
(0x03000000:NameValue):Text = 'Caught BrokerXCIStaticException' (CHARACTER)
(0x01000000:Name ):Insert = (
(0x03000000:NameValue):Type = 5 (INTEGER)
(0x03000000:NameValue):Text = 'java.lang.RuntimeException:
' (CHARACTER)
)
)
)
)
)
整个消息流运行正常。因此，我认为这不是映射节点的错误。另一个细节，在其他流程中，映射节点根本不起作用，并给出相同的错误。我不知道可能是什么问题。也许是JRE错误？
任何的想法？
谢谢！
约苏
最佳答案
这很可能是由于64位计算机上Java堆很大，因为所有引用都比4个字节大。要使其正常运行，您只需在32位代理上运行它，或尝试以下任何一种方法-
使用Xcompressedrefs（关于它的解释在这里-
http://publib.boulder.ibm.com/infocenter/javasdk/v6r0/index.jsp?topic=%2Fcom.ibm.java.doc.diagnostics.60%2Fdiag%2Funderstanding%2Fmm_compressed_references.html）
a）在代理提示下执行以下命令
mqsichangeproperties-代理名称--e --EG名称--o
ComIbmJVMManager -n jvmSystemProperty -v \“-Xcompressedrefs \”
b）验证是否成功应用了JVM选项
mqsireportproperties-代理名称--e --EG名称--o
ComIbmJVMManager -n jvmSystemProperty
系统应显示-
-Xcompressedrefs
c）重新启动执行组
增加JVM内存，默认为256MB
a）执行以下命令
mqsichangeproperties-代理名称--e --EG名称--o
ComIbmJVMManager -n jvmMaxHeapSize -v 536870912
b）验证是否成功应用了JVM选项
mqsireportproperties-代理名称--e --EG名称--o
ComIbmJVMManager -n jvmMaxHeapSize
c）重新启动执行组
希望这可以帮助