The best way is tu store pem files in base64

Author: mmallis87

src/test/java/SdkUnitTests.java

@@ -39,7 +39,7 @@ public class SdkUnitTests {
 
 	private static final String BaseUrl = "https://demo.docusign.net/restapi";
 	//private static final String OAuthBaseUrl = "account-d.docusign.com";
-    private static final byte[] privateKeyBytes = System.getenv("PRIVATE_KEY").getBytes();
+    private static final byte[] privateKeyBytes = Base64.decode(System.getenv("PRIVATE_KEY"));
 	private static final String brandLogoFullPath = System.getProperty("user.dir") + "/src/test/docs/DS.png";
 
 	private static final String SignTest1File = "/src/test/docs/SignTest1.pdf";

target/test-classes/SdkUnitTests.class

@@ -169,7 +169,7 @@ ImplicitLoginTest:
 RequestASignatureTest:
 ===========================================
 user.dir
 /src/test/docs/SignTest1.pdf
 +com/docusign/esign/model/EnvelopeDefinition
  Please Sign my Java SDK Envelope�
 (Hello, Please sign my Java SDK Envelope.�
 !com/docusign/esign/model/Document�
 TestFile.pdf�
 
1� 
 com/docusign/esign/model/Signer
 [email protected]!�
 Pat Developer"�
 !com/docusign/esign/model/SignHere#�
 100$�%�
 0.5&�
 com/docusign/esign/model/Tabs' ()
 #com/docusign/esign/model/Recipients*+,-. /�
 sent0�1�
 #com/docusign/esign/api/EnvelopesApi23�4�5�
 EnvelopeSummary: 
 J
 RequestSignatureFromTemplate:
-===========================================
 Needs to sign
 $cf2a46c2-xxxx-xxxx-xxxx-752547b1a4196�
 %com/docusign/esign/model/TemplateRole7�8 
 A
+===========================================
 Needs to sign
 $***REMOVED***6�
 %com/docusign/esign/model/TemplateRole7�8 
 A
 EmbeddedSigningTest:
 ===========================================
 2Please Sign my Java SDK Envelope (Embedded Signer)
 29399�
 (http://www.docusign.com/developer-center
 -com/docusign/esign/model/RecipientViewRequest:�
 email;�<�=>?@�
 ViewUrl is 
 @
 CreateTemplateTest:
@@ -192,7 +192,7 @@ UpdateBulkRecipientsTest:
 UpdateChunkedUpload:
 ===========================================
 -com/docusign/esign/model/ChunkedUploadRequestijk�lmno�p�qrstu�v�
 UpdateChunkedUploadResponse: 
 G
 UpdateBrandLogoByTypeTest:
-===========================================


 "com/docusign/esign/api/AccountsApi
 $dbdaedc8-xxxx-xxxx-xxxx-b7cfd55f6b64
 primarywx
 org/joda/time/DateTimeyz
 
+===========================================


 "com/docusign/esign/api/AccountsApi
 $***REMOVED***
 primarywx
 org/joda/time/DateTimeyz
 
 yyyy-MM-dd
 10{�|�}
 
 '/src/test/keys/docusign_private_key.txt
 /src/test/docs/DS.png
 SdkUnitTests
 java/lang/Object
 /com/docusign/esign/client/auth/OAuth$OAuthToken
 -com/docusign/esign/client/auth/OAuth$UserInfo
 java/util/List
 java/nio/file/Path
 (com/docusign/esign/model/EnvelopeSummary
 0com/docusign/esign/model/RecipientsUpdateSummary
 -com/docusign/esign/model/ApiRequestLogsResult
 -com/docusign/esign/model/EnvelopesInformation
 java/lang/System
 out
 Ljava/io/PrintStream;
 java/io/PrintStream
 println
 (Ljava/lang/String;)V
 java/nio/file/Paths
 get
 ;(Ljava/lang/String;[Ljava/lang/String;)Ljava/nio/file/Path;
 java/nio/file/Files
 readAllBytes
 (Ljava/nio/file/Path;)[B
 org/junit/Assert
 assertEquals
 '(Ljava/lang/Object;Ljava/lang/Object;)V
 add
 (Ljava/lang/Object;)Z
 requestJWTUserToken
 j(Ljava/lang/String;Ljava/lang/String;Ljava/util/List;[BJ)Lcom/docusign/esign/client/auth/OAuth$OAuthToken;
 assertNotSame
 getAccessToken
 ()Ljava/lang/String;
 getExpiresIn
 ()Ljava/lang/Long;
 setAccessToken
 %(Ljava/lang/String;Ljava/lang/Long;)V
 getUserInfo
 C(Ljava/lang/String;)Lcom/docusign/esign/client/auth/OAuth$UserInfo;
 getAccounts
 ()Ljava/util/List;
 assertNotNull
 (Ljava/lang/Object;)V
 size
 ()I
 
 assertTrue
 (Z)V
 append
 -(Ljava/lang/String;)Ljava/lang/StringBuilder;
 -(Ljava/lang/Object;)Ljava/lang/StringBuilder;
 toString
 (I)Ljava/lang/Object;
 $com/docusign/esign/client/auth/OAuth
 
 getBaseUri
 setBasePath
 9(Ljava/lang/String;)Lcom/docusign/esign/client/ApiClient;
 'com/docusign/esign/client/Configuration
 setDefaultApiClient
 ((Lcom/docusign/esign/client/ApiClient;)V
 fail
 getLocalizedMessage
 getAuthorizationUri
 h(Ljava/lang/String;Ljava/util/List;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/net/URI;
 getProperty
 &(Ljava/lang/String;)Ljava/lang/String;
 setEmailSubject
 setEmailBlurb
 "com/migcomponents/migbase64/Base64
 encodeToString
 ([BZ)Ljava/lang/String;
 setDocumentBase64
 setName
 setDocumentId
 setDocuments
 (Ljava/util/List;)V
 setEmail
 setRecipientId
 setPageNumber
 setXPosition
 setYPosition
 setScaleValue
 setSignHereTabs
 setTabs
 "(Lcom/docusign/esign/model/Tabs;)V
 setRecipients
 ((Lcom/docusign/esign/model/Recipients;)V
 getRecipients
 '()Lcom/docusign/esign/model/Recipients;