Move RequestBody to constructor to avoid npe

owncloudComLibrary/src/main/java/com/owncloud/android/lib/common/http/methods/HttpBaseMethod.kt

@@ -7,7 +7,6 @@ import okhttp3.HttpUrl
 import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
 import okhttp3.OkHttpClient
 import okhttp3.Request
-import okhttp3.RequestBody
 import okhttp3.Response
 import java.io.InputStream
 import java.net.MalformedURLException
@@ -18,7 +17,6 @@ abstract class HttpBaseMethod constructor(url: URL) {
     var okHttpClient: OkHttpClient
     var httpUrl: HttpUrl = url.toHttpUrlOrNull() ?: throw MalformedURLException()
     var request: Request
-    var requestBody: RequestBody? = null
     abstract var response: Response
 
     var call: Call? = null
@@ -45,17 +43,13 @@ abstract class HttpBaseMethod constructor(url: URL) {
      *** Requests ***
      ****************/
 
-    // Headers
-    val requestHeaders: Headers
-        get() = request.headers
-
     fun getRequestHeader(name: String): String? {
         return request.header(name)
     }
 
     fun getRequestHeadersAsHashMap(): HashMap<String, String?> {
         val headers: HashMap<String, String?> = HashMap()
-        val superHeaders: Set<String> = requestHeaders.names()
+        val superHeaders: Set<String> = request.headers.names()
         superHeaders.forEach {
             headers[it] = getRequestHeader(it)
         }

owncloudComLibrary/src/main/java/com/owncloud/android/lib/common/http/methods/nonwebdav/PostMethod.kt

@@ -32,10 +32,12 @@ import java.net.URL
  *
  * @author David González Verdugo
  */
-class PostMethod(url: URL, private val postRequestBody: RequestBody) : HttpMethod(url) {
+class PostMethod(
+    url: URL,
+    private val postRequestBody: RequestBody
+) : HttpMethod(url) {
     @Throws(IOException::class)
     override fun onExecute(): Int {
-        requestBody = postRequestBody
         request = request.newBuilder()
             .post(postRequestBody)
             .build()

owncloudComLibrary/src/main/java/com/owncloud/android/lib/common/http/methods/nonwebdav/PutMethod.kt

@@ -38,7 +38,6 @@ class PutMethod(
 ) : HttpMethod(url) {
     @Throws(IOException::class)
     override fun onExecute(): Int {
-        requestBody = putRequestBody
         request = request.newBuilder()
             .put(putRequestBody)
             .build()

owncloudComLibrary/src/main/java/com/owncloud/android/lib/common/http/methods/webdav/PutMethod.kt

@@ -25,6 +25,7 @@ package com.owncloud.android.lib.common.http.methods.webdav
 
 import at.bitfire.dav4jvm.exception.HttpException
 import com.owncloud.android.lib.common.http.HttpConstants
+import okhttp3.RequestBody
 import java.io.IOException
 import java.net.URL
 
@@ -34,12 +35,13 @@ import java.net.URL
  * @author David González Verdugo
  */
 class PutMethod(
-    url: URL
+    url: URL,
+    private val putRequestBody: RequestBody
 ) : DavMethod(url) {
     @Throws(IOException::class, HttpException::class)
     public override fun onExecute(): Int {
         davResource.put(
-            requestBody!!,
+            putRequestBody,
             super.getRequestHeader(HttpConstants.IF_MATCH_HEADER),
             getRequestHeadersAsHashMap()
         ) { callBackResponse ->