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This post is auto-generated from RSS feed The Rust Programming Language Forum - Latest topics. Source: Rust JNI can't find static method of JasperFillManager class
Hello everyone.
I'm trying to call static method of class JasperFillManager
regarding documentation
it has signature
static JasperPrint fillReport(String sourceFileName, Map<String,Object> params, JRDataSource dataSource)
so I'm trying to call it with the next code
let cls_jr_parameters = jenv.find_class("java/util/HashMap").unwrap();
let obj_jr_parameters = jenv.new_object(cls_jr_parameters, "()V", &[]).unwrap();
let cls_jr_empty_datasource = jenv
.find_class("net/sf/jasperreports/engine/JREmptyDataSource")
.unwrap();
let obj_jr_empty_datasource = jenv
.new_object(cls_jr_empty_datasource, "()V", &[])
.unwrap();
let cls_jasper_fill_manager = jenv
.find_class("net/sf/jasperreports/engine/JasperFillManager")
.unwrap();
let str_jasper_file = jenv.new_string(jasper_file).unwrap();
let obj_jasper_print = jenv
.call_static_method(
cls_jasper_fill_manager,
"fillReport",
"(Ljava/lang/String;Ljava/util/HashMap;Lnet/sf/jasperreports/engine/JRDataSource;)Lnet/sf/jasperreports/engine/JasperPrint;",
&[
JValue::Object(&str_jasper_file),
JValue::Object(&obj_jr_parameters),
JValue::Object(&obj_jr_empty_datasource),
],
)
.unwrap();
But got exception:
Exception in thread "Thread-0" java.lang.NoSuchMethodError: fillReport
Signature on rust side seems OK, any ideas what I'm doing wrong?
Thanks!
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