Problem in HtmlConfigurationWriter
----------------------------------
Key: FELIX-2713
URL: https://issues.apache.org/jira/browse/FELIX-2713
Project: Felix
Issue Type: Bug
Components: Web Console
Affects Versions: webconsole-3.1.6
Reporter: Valentin Valchev
Attachments: stackoverflow.patch
With some Skelmir VM and some J9 versions, when switching to the Web Console
Configuration Render plugin, an exception will occur and no data will be shown.
In some cases, this will even cause the death of the VM process.
The exception is because of different PrintWriter implementation that cases
StackOverflowError, caused by an endless loop:
at java.io.PrintWriter.write(PrintWriter.java:396)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:495)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:541)
at java.io.PrintWriter.write(PrintWriter.java:396)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:495)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:541)
at java.io.PrintWriter.write(PrintWriter.java:396)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:495)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:541)
at java.io.PrintWriter.write(PrintWriter.java:396)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:495)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:541)
at java.io.PrintWriter.write(PrintWriter.java:396)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:495)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:541)
at java.io.PrintWriter.write(PrintWriter.java:396)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:483)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:541)
at java.io.PrintWriter.write(PrintWriter.java:396)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.write(ConfigurationRender.java:513)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender$HtmlConfigurationWriter.println(ConfigurationRender.java:463)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender.printConfigurationPrinter(ConfigurationRender.java:355)
at
org.apache.felix.webconsole.internal.misc.ConfigurationRender.doGet(ConfigurationRender.java:163)
I provide a patch as a solution for the problem.
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