javax.mail.NoSuchProviderException: Invalid protocol: null

mail-archive.com | 4 months ago
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    mail-archive.com | 4 months ago
    javax.mail.NoSuchProviderException: Invalid protocol: null
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    Stack Overflow | 3 years ago | Rincewind
    javax.mail.NoSuchProviderException: Invalid protocol: null
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    javax.mail.NoSuchProviderException: Invalid protocol: null
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    javax.mail.NoSuchProviderException: Invalid protocol :null

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    javax.mail.NoSuchProviderException: Invalid protocol: null
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    javax.mail.NoSuchProviderException: Invalid protocol: null

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    Root Cause Analysis

    1. javax.mail.NoSuchProviderException

      Invalid protocol: null

      at javax.mail.Session.getProvider()
    2. JavaMail API
      Session.getTransport
      1. javax.mail.Session.getProvider(Session.java:431)
      2. javax.mail.Session.getTransport(Session.java:650)
      3. javax.mail.Session.getTransport(Session.java:631)
      3 frames