Cannot drill down in Jasper Studio 7.9

[nick.stanmore]

We've upgraded our Jasper 5.5 db (Oracle 12.1) to Jasper 7.9 using the scripts from jasperreports-server-pro-7.9.0-bin/buildomatic/install_resources/sql/oracle.

I installed Jasper Studio Professional 7.9 to make some bug fixes and have a problem drilling down to see some reports.
When I click on some folders, expecting to see "Main jrxml, sub-reports, input controls, etc; I get a popup and stack trace.

java.lang.NullPointerException
    at com.jaspersoft.studio.server.protocol.restv2.WsTypes.toSoapType(WsTypes.java:246)
    at com.jaspersoft.studio.server.protocol.restv2.Rest2Soap.getRD(Rest2Soap.java:104)
    at com.jaspersoft.studio.server.protocol.restv2.Rest2Soap.getRDContainer(Rest2Soap.java:73)
    at com.jaspersoft.studio.server.protocol.restv2.Rest2Soap.getReportUnit(Rest2Soap.java:381)
    at com.jaspersoft.studio.server.protocol.restv2.Rest2Soap.getRD(Rest2Soap.java:155)
    at com.jaspersoft.studio.server.protocol.restv2.Rest2Soap.getRD(Rest2Soap.java:67)
    at com.jaspersoft.studio.server.protocol.restv2.RestV2ConnectionJersey.get(RestV2ConnectionJersey.java:489)
    at com.jaspersoft.studio.server.protocol.ProxyConnection.get(ProxyConnection.java:194)
    at com.jaspersoft.studio.server.protocol.ProxyConnection.get(ProxyConnection.java:220)
    at com.jaspersoft.studio.server.WSClientHelper.refreshResource(WSClientHelper.java:394)
    at com.jaspersoft.studio.server.ServerProvider.lazyLoadResource(ServerProvider.java:390)
    at com.jaspersoft.studio.server.ServerProvider$2.run(ServerProvider.java:376)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

One of the input controls references a "query" input control and all reports using that control have this problem.
Other reports using other "query" controls seem alright although I haven't checked each one.

When I run the report on the server I get this:

(reduced stack trace)

java.lang.NullPointerException at 
com.jaspersoft.jasperserver.api.metadata.common.domain.util.RefSets$4.apply(RefSets.java:121) at 
com.jaspersoft.jasperserver.api.metadata.common.domain.util.RefSets$4.apply(RefSets.java:118) at 
com.google.common.collect.Iterators$6.transform(Iterators.java:783) at 
com.google.common.collect.TransformedIterator.next(TransformedIterator.java:47) at 
com.google.common.collect.Iterators$5.computeNext(Iterators.java:636) at 
com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:141) at 
com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:136) at 
com.google.common.collect.Iterators.addAll(Iterators.java:355) at 
com.google.common.collect.Sets.newHashSet(Sets.java:274) at 
com.google.common.collect.Sets.newHashSet(Sets.java:257) at 
com.jaspersoft.jasperserver.api.metadata.common.domain.util.RefSets.newSet(RefSets.java:118) at 
com.jaspersoft.jasperserver.api.metadata.common.domain.util.MarkAllInputControlsResolved.normalizeReferences(MarkAllInputControlsResolved.java:39) at 
com.jaspersoft.jasperserver.api.metadata.common.domain.util.MarkAllInputControlsResolved.normalizeReferences(MarkAllInputControlsResolved.java:36) at 
com.jaspersoft.jasperserver.api.metadata.jasperreports.domain.client.ReportUnitImpl.normalizeReferences(ReportUnitImpl.java:412) at 
com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.ReportLoadingService.getInputControlReferences(ReportLoadingService.java:345) at 

Does anyone have a similar experience or know what's wrong with the input control?

 

[nick.stanmore]

Think I have figured it out. We use a home made utility to put and get reports to/from the Jasper server. Apparently the utility removes certain input controls from the report when it gets it from Jasper so if you upload it again you end up with a missing input control.

I have expanded the zip file that the utility creates and the input control is missing as suspected.