java 8 - Can I use lambda expressions in Jaspersoft Studio 6.2.0? -

i use jaspersoft studio 6.2.0, , compile report in maven project dependencies:

<dependency>     <groupid>net.sf.jasperreports</groupid>     <artifactid>jasperreports</artifactid>     <version>6.2.0</version> </dependency>     <dependency>     <groupid>net.sf.jasperreports</groupid>     <artifactid>jasperreports-fonts</artifactid>     <version>6.0.0</version> </dependency> 

the report fed

jrbeanarraydatasource beands = new jrbeanarraydatasource(new incident[]{incident}, false); 

i have tried use labmda expression in print when expression of band. seems not recognise it. expression is:

$f{actionlist} == null || $f{actionlist}.stream().allmatch(a -> actionstatus.completed.equals(a.getstatus())) 

actionstatus enum. , syntax errors like:

net.sf.jasperreports.engine.jrexception: errors encountered when compiling report expressions class file: 1. cannot resolved variable     (((java.util.list)field_actionlist.getvalue()) == null || ((java.util.list)field_actionlist.getvalue()).stream().allmatch(a -> actionstatus.completed.equals(a.getstatus()))) //$jr_expr_id=248$                                                                                                                            ^ 2. syntax error on token "-", -- expected     (((java.util.list)field_actionlist.getvalue()) == null || ((java.util.list)field_actionlist.getvalue()).stream().allmatch(a -> actionstatus.completed.equals(a.getstatus()))) //$jr_expr_id=248$ 

i tried using method object directly like:

this.hasallactionscompleted() 

that same thing (this in incident object set report's ds) :

/**  * checks if incident has actions completed  * @return true if actions completed or none defined, false otherwise  */ public boolean hasallactionscompleted() {     return actionlist == null || actionlist.stream().allmatch(a -> actionstatus.completed.equals(a.getstatus())); } 

and get:

net.sf.jasperreports.engine.jrexception: errors encountered when compiling report expressions class file: 1. method hasallactionscompleted() undefined type incident_1461053626798_784639     this.hasallactionscompleted() //$jr_expr_id=248$ 

is there way this? or should set lambda expression result in parameter report (this obvious walkaround, hoping direct approach)?

and answer change method getter, , use field. in case changed hasallactionscompleted isallactionscompleted , added new field allactionscompleted boolean. worked charm. thank you.