diff --git a/src/java-client.js b/src/java-client.js
new file mode 100644
index 0000000..a3415af
--- /dev/null
+++ b/src/java-client.js
@@ -0,0 +1,50 @@
+const utils = require('./utils')
+const javaType = require('./java-type')
+
+function mapParameter(parameter, namespace) {
+    parameter.type = javaType.mapJavaType(parameter.type, namespace)
+    return parameter
+}
+
+function mapOperation(operation, namespace) {
+    operation.headers = operation.parameters
+                            .filter(param => param.location === 'Header')
+                            .map(param => mapParameter(param, namespace))
+
+    operation.query = operation.parameters
+                            .filter(param => param.location === 'Query')
+                            .map(param => mapParameter(param, namespace))
+
+    operation.parameters =  operation.parameters
+                            .filter(param => param.location === 'Path')
+                            .map(param => mapParameter(param, namespace))
+
+    if(operation.body) {
+        operation.parameters = [ 
+            ...operation.parameters,
+            {
+                name: utils.camelcase(operation.body.type),
+                required: true,
+                location: 'Body',
+                type: javaType.mapJavaType(operation.body.type, namespace)
+            }  
+        ]
+    }
+
+
+
+
+    return operation
+}
+
+module.exports = {
+    mapResources: (resources, namespace) => {
+        return resources.map(resource => {
+            resource.type = javaType.mapJavaType(resource.type, namespace)
+            resource.name = utils.pascalcase(resource.plural)
+            resource.operations = resource.operations.map(op => mapOperation(op, namespace))
+            resource.package = `${namespace}.client`
+            return resource
+        })
+    }
+}
\ No newline at end of file
diff --git a/tests/java-resource.test.js b/tests/java-resource.test.js
new file mode 100644
index 0000000..e6a2f38
--- /dev/null
+++ b/tests/java-resource.test.js
@@ -0,0 +1,255 @@
+const util = require('util')
+const javaClient = require('../src/java-client')
+
+const resources = [
+    {
+        "type": "role",
+        "plural": "roles",
+        "operations": [
+          {
+            "method": "GET",
+            "path": "/roles/",
+            "parameters": [],
+            "responses": [
+              {
+                "code": {
+                  "integer": {
+                    "value": 200
+                  }
+                },
+                "type": "[role]",
+                "description": "OK.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 401
+                  }
+                },
+                "type": "unit",
+                "description": "Unauthorized.",
+                "attributes": []
+              }
+            ],
+            "attributes": [],
+            "description": "Get all defined user roles."
+          },
+          {
+            "method": "GET",
+            "path": "/roles/:id/:other",
+            "parameters": [
+              {
+                "name": "id",
+                "type": "uuid",
+                "location": "Path",
+                "required": true
+              },
+              {
+                "name": "other",
+                "type": "string",
+                "location": "Path",
+                "required": true
+              }
+            ],
+            "responses": [
+              {
+                "code": {
+                  "integer": {
+                    "value": 200
+                  }
+                },
+                "type": "role",
+                "description": "User role found.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 401
+                  }
+                },
+                "type": "unit",
+                "description": "Unauthorized",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 404
+                  }
+                },
+                "type": "unit",
+                "description": "User role not found.",
+                "attributes": []
+              }
+            ],
+            "attributes": [],
+            "description": "Get a user role for id."
+          },
+          {
+            "method": "POST",
+            "path": "/roles/",
+            "parameters": [
+                {
+                    name: 'Authorization',
+                    location: "Header",
+                    type: "string"
+                }
+            ],
+            "responses": [
+              {
+                "code": {
+                  "integer": {
+                    "value": 201
+                  }
+                },
+                "type": "user",
+                "description": "User role successfully created.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 400
+                  }
+                },
+                "type": "[de.nclazz.errors.v0.models.genericError]",
+                "description": "Bad Request.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 401
+                  }
+                },
+                "type": "unit",
+                "description": "Unauthorized.",
+                "attributes": []
+              }
+            ],
+            "attributes": [],
+            "description": "Create a new user role.",
+            "body": {
+              "type": "role_form",
+              "attributes": []
+            }
+          },
+          {
+            "method": "PUT",
+            "path": "/roles/:id/status",
+            "parameters": [
+              {
+                "name": "id",
+                "type": "uuid",
+                "location": "Path",
+                "required": true
+              }
+            ],
+            "responses": [
+              {
+                "code": {
+                  "integer": {
+                    "value": 200
+                  }
+                },
+                "type": "userStatus",
+                "description": "User role status updated successfully.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 400
+                  }
+                },
+                "type": "[de.nclazz.errors.v0.models.genericError]",
+                "description": "Bad Request.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 401
+                  }
+                },
+                "type": "unit",
+                "description": "Unauthorized.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 404
+                  }
+                },
+                "type": "unit",
+                "description": "Not Found.",
+                "attributes": []
+              }
+            ],
+            "attributes": [],
+            "description": "Update the status of a user role.",
+            "body": {
+              "type": "userStatus_form",
+              "attributes": []
+            }
+          },
+          {
+            "method": "DELETE",
+            "path": "/roles/:id",
+            "parameters": [
+              {
+                "name": "id",
+                "type": "uuid",
+                "location": "Path",
+                "required": true
+              }
+            ],
+            "responses": [
+              {
+                "code": {
+                  "integer": {
+                    "value": 200
+                  }
+                },
+                "type": "unit",
+                "description": "User role deleted successfully.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 401
+                  }
+                },
+                "type": "unit",
+                "description": "Unauthorized.",
+                "attributes": []
+              },
+              {
+                "code": {
+                  "integer": {
+                    "value": 404
+                  }
+                },
+                "type": "unit",
+                "description": "Not Found.",
+                "attributes": []
+              }
+            ],
+            "attributes": [],
+            "description": "Mark a user role as deleted. The user role cannot be accessed by the api, but will stay in the db for a while, before completely removed."
+          }
+        ],
+        "attributes": [],
+        "path": "/roles",
+        "description": "Managing user roles."
+      },
+]
+
+const mapped = javaClient.mapResources(resources, "de.nclazz.test.v0")
+
+
+console.log('Resource: ', util.inspect(mapped, { depth: 8 }), '\n-----\n')
\ No newline at end of file
diff --git a/tests/java-type.test.js b/tests/java-type.test.js
index 06ffa54..a40a747 100644
--- a/tests/java-type.test.js
+++ b/tests/java-type.test.js
@@ -1,7 +1,10 @@
+
 const mapper = require('../src/java-type')
 
 const namespace = "de.nclazz.test.v0"
 
+
+
 console.log("string:", mapper.mapJavaType("string", namespace))
 console.log("[string}:", mapper.mapJavaType("[string]", namespace))
 console.log("custom:", mapper.mapJavaType("custom", namespace))