meatwad

I had the same error and your fix worked for me as well.

Changed Assigned User from @User_306070 to @anonymous Massino, you are right! I forgot I had changed that setting to do some testing. I set it back and I am having some success with this. However I do see an inconsistency between the way Studio seems to be handling banded reports with a subreport element and a part report with a subreport element.It looks like when I create a banded report with a subreport and set its subreportExpression to a String parameter then Studio will look for a compiled report with the filename that matches that String parameter. Using this same technique on a part report results in a NullPointerException.Please let me know if I'm missing something.

I've opened issue #3910 for this problem.

It seems I have the same problem with any array type. I set the value and the preview never generates.

I have a report with an Integer[] parameter set to prompt and I keep getting this message even though I am setting the parameter: "The report requires that you specify the value for some parameters before running it." I'm new to Jaspersoft Studio so maybe I am missing something simple.

Was there ever a resolution for this issue? I'm experiencing the same stack trace.

This problem has returned for me as well. Very difficult to consistently reproduce. I'm running Jasper through a WAR and JAR inside an EAR file for deployment. I have the log4j.properties file in /WEB-INF/classes inside my WAR file and /lib in my EAR file. And I am still experiencing this issue. toffer, are you experiencing this issue anymore? How are you deploying Jasper?

I have applied the fix described here: http://community.jaspersoft.com/questions/535452/javalangstackoverflowerror to work around the StackOverflowError when a subreport spans more than 1 page in a main report. I have a report with multiple subreports and this error is being thrown again. Are there any limitations on how many subreports can be in a report? Is there something else I can change?

Maybe I'm forgetting but what does POC stand for? By the way the reason I ask is that I believe the versions of xalan and xerces included with JasperReports are out of sync with each other. In addition to that as of Java 1.6 Xerces is now part of the JRE.

The binary release of JasperReports includes a /lib directory with a lot of jar files in it. Which ones should I include in my application?

Have you tried setting "Position Type" to "Float" on the text below the image?

What are the types of those fields?

I've just run into this problem today so it still exists. I was able to use the workaround. How I did it was to create a log4j.propertiesfile that includes this property: log4j.logger.org.apache.commons.javaflow=info Then I packaged it inside my war (I'm using a web application) under /WEB-INF/classes. Has the real issue behind this error been discovered? I'm looking at putting JasperReports into production at my company but I'm very concerned about this.

Looks like my issue is related to this bug: http://jasperforge.org/plugins/mantis/view.php?id=3260

I have a detail band I don't want printed unless 1 of the 4 subreports inside of it returns a non-null value. But it seems that when I try using the variables that receive these values from the subreports in the "Print When" expression of the main report it doesn't work. They are always null during the expression evaluation. How can I do this?