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  1. JDK
  2. JDK-6826789

SecureClassLoader should not use CodeSource URLs as HashMap keys

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    • Subcomponent:
    • Resolved In Build:
      b70
    • CPU:
      generic
    • OS:
      generic
    • Verification:
      Verified

      Backports

        Description

        SecureClassLoader.getProtectionDomain uses HashMap<CodeSource> to cache protection domains to speed up their construction. CodeSource.hashCode() uses URL.hashcode() and CodeSource.equals() uses URL.equals().
        However, these URL may cause DNS lookups which are expensive if everything is cached.

        We should avoid them, e.g. by using URI.

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-2207540 SecureClassLoader should not use CodeSource URLs as HashMap keys

            • P3 - Major loss of function.
            • Closed
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-6826801 JarFileFactory should not use HashMap<URL>

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8131486 SecureClassLoader key for ProtectionDomain cache also needs to take into account certificates

            • P3 - Major loss of function.
            • Closed

            Enhancement - null JDK-6797730 Umbrella: Applet startup performance improvements

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

            Enhancement - null JDK-7007005 RFE: startup time of applets suffers if java.policy contains many grant statements

            • P3 - Major loss of function.
            • Closed

            Sub-task - The sub-task of the issue JDK-8062948 Implement and measure potential performance improvements

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-7152564 Improve CodeSource.matchLocation(CodeSource) performance

            • P2 - Crashes, loss of data, severe memory leak.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-6810437 URL.hashcode() and URL.equals() are greedy with DN lookups

            • P2 - Crashes, loss of data, severe memory leak.
            • Closed

              Activity

                People

                Assignee:
                mullan Sean Mullan
                Reporter:
                igor Igor Nekrestyanov (Inactive)
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