[jboss-jira] [JBoss JIRA] (DROOLS-957) NullPointerException when attempt to process

[Artsiom Tsaryonau (JIRA)]

Artsiom Tsaryonau created DROOLS-957:
----------------------------------------

             Summary: NullPointerException when attempt to process 
                 Key: DROOLS-957
                 URL: https://issues.jboss.org/browse/DROOLS-957
             Project: Drools
          Issue Type: Bug
          Components: core engine, decision tables
    Affects Versions: 6.3.0.Final
         Environment: Java 1.0.0_67
            Reporter: Artsiom Tsaryonau
            Assignee: Mario Fusco
         Attachments: ref_table.xls, ref_table.xlsx

When I try to process _xls_ table (in the attachment) - in order to check its validity - it's works fine and shows that table is incorrect.

But when I try to process the same table but in _xlsx_ I get +NullPointerException+
{code:c}
java.lang.NullPointerException
	at org.apache.poi.openxml4j.opc.OPCPackage.getPart(OPCPackage.java:628)
	at org.apache.poi.POIXMLDocumentPart.<init>(POIXMLDocumentPart.java:97)
	at org.apache.poi.POIXMLDocument.<init>(POIXMLDocument.java:57)
	at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:197)
	at org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:79)
	at org.drools.decisiontable.parser.xls.ExcelParser.parseFile(ExcelParser.java:82)
	at org.drools.decisiontable.SpreadsheetCompiler.compile(SpreadsheetCompiler.java:93)
	at org.drools.decisiontable.SpreadsheetCompiler.compile(SpreadsheetCompiler.java:72)
	at org.drools.decisiontable.DecisionTableProviderImpl.compileStream(DecisionTableProviderImpl.java:75)
	at org.drools.decisiontable.DecisionTableProviderImpl.loadFromInputStream(DecisionTableProviderImpl.java:43)
	at org.drools.compiler.compiler.DecisionTableFactory.loadFromInputStream(DecisionTableFactory.java:32)
	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.decisionTableToPackageDescr(KnowledgeBuilderImpl.java:402)
	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.addPackageFromDecisionTable(KnowledgeBuilderImpl.java:372)
	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.addKnowledgeResource(KnowledgeBuilderImpl.java:732)
	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:2223)
	at com.xxxx.xxxx.RuleValidator.isValidXLSRule(RuleValidator.java:33)
	at com.xxxx.xxxx.RuleValidator.main(RuleValidator.java:26)

{code}

Also it can be possible that there is an error in my application's code - maybe I am doing something wrong.

I additionally add that _xlsx_ table is not purely _xlsx_ table created in excel, but converted from _xls_ using excel.



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