path: root/lib/jinterface/doc/src/notes.xml

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<!DOCTYPE chapter SYSTEM "chapter.dtd">

<chapter>
  <header>
    <copyright>
      <year>2000</year><year>2012</year>
      <holder>Ericsson AB. All Rights Reserved.</holder>
    </copyright>
    <legalnotice>
      The contents of this file are subject to the Erlang Public License,
      Version 1.1, (the "License"); you may not use this file except in
      compliance with the License. You should have received a copy of the
      Erlang Public License along with this software. If not, it can be
      retrieved online at http://www.erlang.org/.

      Software distributed under the License is distributed on an "AS IS"
      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
      the License for the specific language governing rights and limitations
      under the License.

    </legalnotice>

    <title>Jinterface Release Notes</title>
    <prepared>otp_appnotes</prepared>
    <docno>nil</docno>
    <date>nil</date>
    <rev>nil</rev>
    <file>notes.xml</file>
  </header>
  <p>This document describes the changes made to the Jinterface application.</p>

<section><title>Jinterface 1.5.6</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Correct spelling of registered (Thanks to Richard
	    Carlsson)</p>
          <p>
	    Own Id: OTP-9925</p>
        </item>
        <item>
          <p>
	    Java 1.5 has a bug where detecting codepoint offsets in
	    strings that are created by String.substring() gives
	    wrong results. The new implementation uses a different
	    method, avoinding the issue. (Thanks to Vlad Dumitrescu)</p>
          <p>
	    Own Id: OTP-9927</p>
        </item>
        <item>
          <p>
	    Improve error message when creating a too long
	    OtpErlangAtom. Also print the value that we tried to use
	    for the atom. (Thanks to Vlad Dumitrescu)</p>
          <p>
	    Own Id: OTP-9928</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.5.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    JInterface: improve OtpOutputStream buffer allocation</p>
          <p>
	    Previously, the buffer was increased linearly by 2048
	    bytes. I now propose to use an exponential increase
	    function (similar to Javas ArrayList, e.g. always at
	    least +50%). This significantly increases performance of
	    e.g. doRPC for large parameters. (Thanks to Nico Kruber)</p>
          <p>
	    Own Id: OTP-9806</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.5.4</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Some malformed distribution messages could cause VM to
	    crash, this is now corrected.</p>
          <p>
	    Own Id: OTP-8993</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.5.3.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The OtpMbox class did not have a hash() method, which it
	    should have because it overrides equals().</p>
          <p>
	    Own Id: OTP-8854</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.5.3.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    An pom.xml file is now generated. (Thanks to Gabor
	    Liptak.)</p>
          <p>
	    Own Id: OTP-8841</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.5.3</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>The documentation is now possible to build in an open
	    source environment after a number of bugs are fixed and
	    some features are added in the documentation build
	    process. </p>
	    <p>- The arity calculation is updated.</p>
	    <p>- The module prefix used in the function names for
	    bif's are removed in the generated links so the links
	    will look like
	    "http://www.erlang.org/doc/man/erlang.html#append_element-2"
	    instead of
	    "http://www.erlang.org/doc/man/erlang.html#erlang:append_element-2".</p>
	    <p>- Enhanced the menu positioning in the html
	    documentation when a new page is loaded.</p>
	    <p>- A number of corrections in the generation of man
	    pages (thanks to Sergei Golovan)</p>
	    <p>- The legal notice is taken from the xml book file so
	    OTP's build process can be used for non OTP
	    applications.</p>
          <p>
	    Own Id: OTP-8343</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.5.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The documentation is now built with open source tools
	    (xsltproc and fop) that exists on most platforms. One
	    visible change is that the frames are removed.</p>
          <p>
	    Own Id: OTP-8201</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.5.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Many Erlang classes, e.g. OtpErlangRef, was missing an
	    implementation of the hashCode() method, making it futile
	    to put them in hash structures such as HashMap. Bug and
	    patch provided by Paul Guyot. We extended the patch to
	    all classes and improved (?) on the hash algorithm.</p>
          <p>
	    Own Id: OTP-7899</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    jinterface uses the new environment variable
	    ERL_EPMD_PORT the same way that erl, epmd and
	    erl_interface do since R13A.</p>
          <p>
	    Own Id: OTP-7885</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.5</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    A number of fixes and improvements from the ErlIDE group;
	    Vlad Dumitrescu and Jakob Cederlund: JDK 1.5 is now a
	    minimal requirement for building Jinterface. New method:
	    OtpEpmd.lookupNames. OtpErlangList is now iterable.
	    Non-proper lists are now allowed - you have to test if a
	    list is proper or not. Non-proper lists can also be
	    created. New methods: isProper, getHead, getTail and
	    getNthTail. The get tail methods creates a sublist object
	    that re-uses the original list. OtpErlangPid is now
	    Comparable. Empty atoms can now be constructed, a missing
	    feature pointed out by Sebastien Boisgerault on
	    erlang-questions.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-7832</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.4.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    A bug when Jinterface did not detect remote node
	    disconnects has been corrected.</p>
          <p>
	    Own Id: OTP-7624</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.4.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Jinterface has been fixed to use the loopback interface
	    when connecting to the Erlang Port Mapper Daemon - epmd.
	    This facilitates firewall configuration and saves
	    resources.</p>
          <p>
	    Own Id: OTP-7103</p>
        </item>
        <item>
	    <p>Jinterface now refuses to connect to another node that
	    does not agree on the other node's name. This has been a
	    problem in that a connection was set up, but not used on
	    a following send, which caused a second erroneous
	    connection attempt to fail since the other (Erlang) node
	    rejects a connection due to name disagreement.</p>
	    <p>Problem reported and dissected by Alexander Lamb</p>
          <p>
	    Own Id: OTP-7330</p>
        </item>
      </list>
    </section>

</section>

<section><title>Jinterface 1.4</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>Jinterface has been updated to handle compressed
	    terms, bitstring, new (IEEE) floats and bignums. This has
	    caused a few incompatibilities.</p>
	    <p>com.ericsson.otp.erlang.OtpOutputStream now extends
	    java.io.ByteArrayOutputStream, previously
	    java.lang.Object, and hence the method size() now return
	    the number of bytes in the stream as dictated by the new
	    parent class and not the buffer length as before. The new
	    method length() returns what the old size() did return.
	    The method count() is deprecated as it returns the same
	    as the new size().</p>
	    <p>com.ericsson.otp.erlang.OtpErlangLong now can handle
	    larger values than 64-bit. Previously when larger than
	    64-bit integers were sent to a Jinterface node, it caused
	    an com.ericsson.otp.erlang.OtpDecodeException. Now the
	    integer is accepted, but the return value of longValue()
	    is silently truncated, as opposed to the return value of
	    intValue() that now and previously raises an
	    com.ericsson.otp.erlang.OtpRangeException for
	    unrepresentable values. The new methods isLong() and
	    isULong() can be used to determine if the value fits in a
	    long.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-6809</p>
        </item>
      </list>
    </section>

</section>

  <section>
    <title>Jinterface 1.3</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p><c>OtpMbox.receive()</c> and <c>OtpMbox.receive(long timeout)</c> can now throw
            <c>OtpErlangDecodeException</c> if the received message
            can not be decoded. <c>null</c> is now only returned from
            <c>OtpMbox.receive(long timeout)</c> if a timeout occurs.
            <c>OtpMbox.receive()</c> will never return <c>null</c>.</p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-3932 Aux Id: seq5196 </p>
        </item>
        <item>
          <p>Strings longer than 65535 bytes were encoded wrong by
            jinterface.</p>
          <p>Own Id: OTP-4883 Aux Id: OTP-4865 </p>
        </item>
        <item>
          <p>Misc bugfixes: </p>
          <list type="bulleted">
            <item>
              <p>A node pinging itself does no
                longer cause the java program to hang.</p>
              <p></p>
            </item>
            <item>
              <p><c>OtpMbox.close()</c> uses exit reason
                <c>'normal'</c> (atom) instead of <c>"normal"</c>
                (string).</p>
              <p></p>
            </item>
            <item>
              <p>Added <c>OtpNode.closeMbox(OtpMbox mbox, OtpErlangObject reason)</c>.</p>
              <p></p>
            </item>
            <item>
              <p>Added <c>OtpMbox.exit(OtpErlangObject reason)</c>
                and <c>OtpMbox.exit(String reason)</c>.</p>
              <p></p>
            </item>
            <item>
              <p>Added <c>OtpMbox.exit(OtpErlangPid to, OtpErlangObject reason)</c>.</p>
              <p></p>
            </item>
            <item>
              <p><c>OtpMbox.exit(OtpErlangPid to, String reason)</c>
                is now equivalent to <c>OtpMbox.exit(to, new OtpErlangAtom(reason))</c>.</p>
              <p></p>
            </item>
            <item>Exit signals from an Erlang node can now contain
             any erlang term as reason, not only atoms. </item>
          </list>
          <p>Own Id: OTP-5088</p>
        </item>
        <item>
          <p>For java versions 1.3.1 or later, <c>localStatus</c> was
            not sent to registered status handler when
            <c>OtpNode.close()</c> was called. This is now corrected.</p>
          <p>Own Id: OTP-5169</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Process identifiers and port identifiers have been
            made more unique. Previously 18 bits were used as id in
            the internal representation of process and port
            identifiers. Now 28 bits are used. </p>
          <p>The maximum
            limit on the number of concurrently existing processes
            due to the representation of pids has been increased to
            268435456 processes. The same is true for ports. This
            limit will at least on a 32-bit architecture be
            impossible to reach due to memory shortage. </p>
          <p><em>NOTE:</em> By default, the <c>ERTS</c>, and the
            <c>erl_interface</c>, <c>ei</c>, and <c>jinterface</c>
            libraries are now only guaranteed to be compatible with
            other Erlang/OTP components from the same release. It is
            possible to set each component in compatibility mode of
            an earlier release, though. See the documentation for
            respective component on how to set it in compatibility
            mode. </p>
          <p>*** POTENTIAL INCOMPATIBILITY ***</p>
          <p>Own Id: OTP-4968 Aux Id: OTP-4196 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Jinterface 1.2.1.2</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Output of Java long was truncated to 32 bits. IDL long
            long and unsigned long long could not be used in a struct
            for the Java backend. All unsigned integer types for the
            Java backend had broken marshalling for large values.
            These bugs has now been fixed.</p>
          <p>Own Id: OTP-4763 Aux Id: seq8024 </p>
        </item>
      </list>
    </section>
  </section>
</chapter>