java.lang.NoSuchMethodError JSONWriter while creating Issue

[stoldorma]

Hello,

I'm facing following Exception when retriving Custom Fields:

Code:

Issue createdIssue = issue.create();

Exception:

java.lang.NoSuchMethodError: 'void org.json.JSONWriter.<init>(java.io.Writer)'
	at com.taskadapter.redmineapi.internal.RedmineJSONBuilder.toSimpleJSON(RedmineJSONBuilder.java:121)
	at com.taskadapter.redmineapi.internal.Transport.addObject(Transport.java:229)
	at com.taskadapter.redmineapi.bean.Issue.create(Issue.java:630)

pom.xml:

<dependency>
    <groupId>com.taskadapter</groupId>
    <artifactId>redmine-java-api</artifactId>
    <version>4.0.0.preview.3</version>
</dependency>
<dependency> 
    <groupId>org.json</groupId>
    <artifactId>json</artifactId>
 <version>20090211</version>
</dependency>

I'm using 2.4.6.stable Version on the Server.