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  1. Undertow
  2. UNDERTOW-2102

ServletPrintWriterDelegate throws exception using OpenJDK 19 EA

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      In wildfly:

      export JAVA_HOME=/home/rmartinc/apps/jdk-17
cd testsuite/integration/manualmode
mvn test -Dtest=org.wildfly.test.manual.elytron.seccontext.AuthenticationForwardingSFSFTestCase#testServletFormEntryFirstInsufficientRoles
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      In wildfly: export JAVA_HOME=/home/rmartinc/apps/jdk-17 cd testsuite/integration/manualmode mvn test -Dtest=org.wildfly.test.manual.elytron.seccontext.AuthenticationForwardingSFSFTestCase #testServletFormEntryFirstInsufficientRoles

    Description

      In WFLY-16461 was detected that two tests failed using OpenJDK 19 EA. Finally it seems that the issue is in undertow. The tests do something like the following:

      final PrintWriter writer = response.getWriter();
try {
    ...
} catch (Exception e) {
    e.printStackTrace(writer);
}

      In JDK-19 this commit changed how the PrintWriter synchronizes the operation. Now the internal lock inside the PrintWriter is managed. The ServletPrintWriterDelegate uses the unsafe to create the instance and therefore the lock is not initialized. The final exception is the following:

      ERROR [io.undertow.request] (default task-2) UT005023: Exception handling request to /entry-servlet-form/EntryServlet: java.lang.NullPointerException: Cannot enter synchronized block because "lock" is null
        at java.base/java.lang.Throwable.printStackTrace(Throwable.java:672)
        at java.base/java.lang.Throwable.printStackTrace(Throwable.java:749)
        at deployment.entry-servlet-form.war//org.wildfly.test.manual.elytron.seccontext.EntryServlet.doGet(EntryServlet.java:82)
        at javax.servlet.api@2.0.0.Final//javax.servlet.http.HttpServlet.service(HttpServlet.java:503)
        at javax.servlet.api@2.0.0.Final//javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
        at io.undertow.servlet@2.2.17.Final//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
        ...

      That class should to initialize the lock in order to be used, for example in the printStackTrace method of a Exception.

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          causes

          Bug - A problem which impairs or prevents the functions of the product. WFLY-16461 Security related manualmode tests failing on OpenJDK 19 EA

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          is incorporated by

          Component Upgrade - A task tracking an update to a bundled component WFCORE-6057 Upgrade Undertow to 2.3.0.Final (CVE-2022-2764)

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Resolved

          Component Upgrade - A task tracking an update to a bundled component WFCORE-5946 Upgrade Undertow to 2.2.18.Final

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

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              context keys: [headless, issue, helper, isAsynchronousRequest, project, action, user]
              current Project key: UNDERTOW

              People

                rhn-support-rmartinc Ricardo Martin Camarero
                rhn-support-rmartinc Ricardo Martin Camarero
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                Dates

                  Created:
                  Updated:
                  Resolved: