Cannot convert "1682293037722628098'(1anguage: Java, type: com.oracle.truffle.api.strings.Trufflestring) to Java type "java.lang .0bject[]':Unsupported target type

[dandelion2]

While compiling a JavaScript script using GraalVM, we've encountered an intermittent issue when calling a Java interface with variable arguments defined as follows:

java public Object queryForMap(final String sql, Object ... args);

The corresponding JavaScript call to the method is structured like this:

javascript const selectSql = "select code, product_id as productId, ts_storage_id as tsStorageId from device where id = ?"; const deviceInfo = jdbcClient.queryForMap(selectSql, "1682293037722628098");

Initially, the script execution occasionally results in the error: "Cannot convert '1682293037722628098' to Java type 'java.lang.Object[]': Unsupported target type." Interestingly, after several attempts, the issue does not consistently manifest, making it difficult to reproduce.

[selhagani]

Hi @dandelion2,

Thank you for reaching out to us. Could you please share the version of GraalVM you're using, your OS, your system's architecture and a concise reproducer alongside the steps needed to reproduce the issue?

I understand that the execution of the script multiple times may end up leading to the issue not manifesting consistently but we still need it to test nevertheless.

Thank you

[dandelion2]

The version of GraalVM I am using is graalvm-ce-java11-linux-amd64-22.3.1. The reproduction script, with business processing logic removed, is as follows: Java code: // Query the database public Map<String, Object> queryForMap(final String sql, Object ... args) { if (StringUtils.isBlank(sql)){ throw new DandelionException("mysql queryForMap error, SQL must not be null"); } // SQL validation checkSql(sql); try { return jdbcTemplate.queryForMap(sql, args); } catch (EmptyResultDataAccessException e){ return null; } catch (Exception e) { throw new DandelionException("mysql queryForMap error,"+e.getMessage(), e); } } // Register Java object context.eval("js", "var jdbcClient = Java.type('com.example.JsJdbc').create()"); JavaScript code: const selectSql = "SELECT code, product_id as productId, ts_storage_id as tsStorageId FROM device WHERE id = ?"; const deviceInfo = jdbcClient.queryForMap(selectSql, "1682293037722628098");

[selhagani]

Could you try testing with the latest available GraalVM version to see if the issue still presist? You can find it using this link: https://github.com/graalvm/graalvm-ce-builds/releases