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Posted to dev@felix.apache.org by "Valentin Valchev (JIRA)" <ji...@apache.org> on 2015/08/07 10:12:45 UTC
[jira] [Created] (FELIX-4995) NPE when updating Apache Felix OSGi
Management Console configuration without a password
Valentin Valchev created FELIX-4995:
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Summary: NPE when updating Apache Felix OSGi Management Console configuration without a password
Key: FELIX-4995
URL: https://issues.apache.org/jira/browse/FELIX-4995
Project: Felix
Issue Type: Bug
Components: Web Console
Affects Versions: webconsole-4.2.8
Reporter: Valentin Valchev
The following exception occurs, when you try to save the webconsole configuration from the web console config plugin:
{code}
java.lang.NullPointerException
java.security.MessageDigest$Delegate(java.security.MessageDigest).update(byte[]) line: 293
java.security.MessageDigest$Delegate(java.security.MessageDigest).digest(byte[]) line: 368
org.apache.felix.webconsole.internal.servlet.Password.hashPassword(byte[], java.lang.String) line: 178
org.apache.felix.webconsole.internal.servlet.Password.hashPassword(java.lang.String, byte[]) line: 118
org.apache.felix.webconsole.internal.servlet.Password.hashPassword(java.lang.String) line: 77
{code}
The implementation obviously expects password to be always set.
However initially the configuration doesn't exist and when you create it with web console, the password is not set yet.
However, if you do not edit the password in the configuration dialog, it is set to a PASSWORD_PLACEHOLDER_VALUE = "unmodifed".
Then the following code becomes the reason of the problem, because of the incorrect assumption:
{code}
// assumption: config is not null and as a non-null password String property
final String pwd = ( String ) config.get( OsgiManager.PROP_PASSWORD );
final String hashedPassword = Password.hashPassword( pwd );
{code}
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