Language: Java
Label: vulnerable
CWE: CWE-89 \u2014 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.

Code:
    public void testIsNull() {
        // Create the filter
        Filter filter = Predicates.isNull("name");
        // Build it
        StringBuilder build =
                QueryBuilder.forIds(dialect, WorkspaceInfo.class, dbMappings)
                        .filter(filter)
                        .build();
        String sql = build.toString();

        String sqlNull =
                "oid IN (SELECT oid FROM object_property WHERE property_type IN (:"
                        + "ptype0) AND value IS NULL) OR oid NOT IN (SELECT oid FROM object_property WHERE property_type IN (:"
                        + "ptype0))";
        // Ensure the following sql is present
        assertThat(sql, containsString(sqlNull));
    }