Hi All ,
I found the root cause , because I serialized the DataObject , then
deserialized the DataObject .
The typeHelper was destroied when deserialized the DataObject .
What was it happended when deserialized the DataObject ?
How to solve this problem ? Should I back to the DAS M2 ?
Leo
_____
发件人: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
发送时间: 2007年9月6日 11:49
收件人: '[email protected]'
主题: NullPointException error in DAS Beta 1.0
Hi All ,
I run my test example in DAS beta 1.0 , it will run ok at first time ,
and then run at second time was report a NullPointException , error info as
follow :
The line is
Type root = SDOUtil.createType(typeHelper, getDefaultURI(), "DataGraphRoot",
false);
Caused by: java.lang.NullPointerException
at
org.apache.tuscany.das.rdb.graphbuilder.impl.GraphBuilderMetadata.createDyna
micTypes(GraphBuilderMetadata.java:124)
at
org.apache.tuscany.das.rdb.graphbuilder.impl.GraphBuilderMetadata.getRootTyp
e(GraphBuilderMetadata.java:91)
at
org.apache.tuscany.das.rdb.impl.ReadCommandImpl.buildGraph(ReadCommandImpl.j
ava:88)
at
org.apache.tuscany.das.rdb.impl.ReadCommandImpl.executeQuery(ReadCommandImpl
.java:63)
at
com.foresee.spiderweb.dataadapter.db.DasServiceImpl.execute(DasServiceImpl.j
ava:321)
... 24 more
Why is it ? My test example could run correctly in M2.
Leo
