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get pages - error: jave.nio.CharBuffer

Hi All,

I am using the get pages-operator and get the following process failed info:
java.nio.CharBuffer.subSequence(II)Ljava/nio/CharBuffer;

for different processes.
I use the 5.3.000-RM Version.

Does anyone know this problem?

Thanx in advance!
Currant

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MariusHelf

Hi Currant,

can you please post your process setup?

Best regards,
Marius

currant

Dear Marius,

The process is working again. I often use this process and usually it works. but last Friday and at the weekend I got the error message. On Monday the process worked again although I did not change it...

here the process:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.005">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.3.005" expanded="true" name="Process">
    <process expanded="true">
      <operator activated="true" class="read_excel" compatibility="5.3.005" expanded="true" height="60" name="Read Excel" width="90" x="45" y="120">
        <parameter key="excel_file" value="C:\temp\Links.xls"/>
        <parameter key="imported_cell_range" value="A1:A518"/>
        <parameter key="first_row_as_names" value="false"/>
        <list key="annotations">
          <parameter key="0" value="Name"/>
        </list>
        <list key="data_set_meta_data_information">
          <parameter key="0" value="Link.true.file_path.attribute"/>
        </list>
      </operator>
      <operator activated="true" class="web:retrieve_webpages" compatibility="5.3.000" expanded="true" height="60" name="Get Pages" width="90" x="179" y="30">
        <parameter key="link_attribute" value="Link"/>
      </operator>
      <operator activated="true" class="text:data_to_documents" compatibility="5.3.000" expanded="true" height="60" name="Data to Documents" width="90" x="315" y="30">
        <list key="specify_weights"/>
      </operator>
      <operator activated="true" class="text:process_documents" compatibility="5.3.000" expanded="true" height="94" name="Process Documents" width="90" x="450" y="30">
        <parameter key="prune_below_rank" value="5.0"/>
        <parameter key="prune_above_rank" value="5.0"/>
        <process expanded="true">
          <operator activated="true" class="web:extract_html_text_content" compatibility="5.3.000" expanded="true" height="60" name="Extract Content" width="90" x="179" y="75">
            <parameter key="extract_content" value="false"/>
          </operator>
          <operator activated="true" class="text:extract_information" compatibility="5.3.000" expanded="true" height="60" name="Extract Information" width="90" x="447" y="30">
            <parameter key="query_type" value="XPath"/>
            <list key="string_machting_queries"/>
            <list key="regular_expression_queries"/>
            <list key="regular_region_queries"/>
            <list key="xpath_queries">
              <parameter key="ResidueDefinition" value="//h:h1[@style='text-align:left']/text()"/>
              <parameter key="Footnote1" value="//h:div[@class='col60']/h:ul/h:li[1]/text()"/>
              <parameter key="Footnote2" value="//h:div[@class='col60']/h:ul/h:li[2]/text()"/>
              <parameter key="LegisLink" value="//h:div[@class='col40']/h:p/h:a[1]/@href"/&gt;
              <parameter key="LegisText" value="//h:div[@class='col40']/h:p/h:a[1]/text()"/>
              <parameter key="Footnote3" value="//h:div[@class='col60']/h:ul/h:li[3]/text()"/>
              <parameter key="Footnote4" value="//h:div[@class='col60']/h:ul/h:li[4]/text()"/>
              <parameter key="Footnote5" value="//h:div[@class='col60']/h:ul/h:li[5]/text()"/>
              <parameter key="Footnote6" value="//h:div[@class='col60']/h:ul/h:li[6]/text()"/>
              <parameter key="Footnote7" value="//h:div[@class='col60']/h:ul/h:li[7]/text()"/>
              <parameter key="Footnote8" value="//h:div[@class='col60']/h:ul/h:li[8]/text()"/>
              <parameter key="Footnote9" value="//h:div[@class='col60']/h:ul/h:li[9]/text()"/>
              <parameter key="Footnote10" value="//h:div[@class='col60']/h:ul/h:li[10]/text()"/>
              <parameter key="Footnote11" value="//h:div[@class='col60']/h:ul/h:li[11]/text()"/>
              <parameter key="Footnote12" value="//h:div[@class='col60']/h:ul/h:li[12]/text()"/>
            </list>
            <list key="namespaces"/>
            <list key="index_queries"/>
          </operator>
          <connect from_port="document" to_op="Extract Content" to_port="document"/>
          <connect from_op="Extract Content" from_port="document" to_op="Extract Information" to_port="document"/>
          <connect from_op="Extract Information" from_port="document" to_port="document 1"/>
          <portSpacing port="source_document" spacing="0"/>
          <portSpacing port="sink_document 1" spacing="0"/>
          <portSpacing port="sink_document 2" spacing="0"/>
        </process>
      </operator>
      <operator activated="true" class="select_attributes" compatibility="5.3.005" expanded="true" height="76" name="Select Attributes" width="90" x="581" y="75">
        <parameter key="attribute_filter_type" value="subset"/>
        <parameter key="attributes" value="|LegisLink|LegisText|Footnote2|Footnote1|Footnote3|Footnote4|Footnote5|Footnote6|Footnote7|Footnote8|Footnote9|Footnote10|Footnote11|Footnote12|ResidueDefinition"/>
      </operator>
      <operator activated="true" class="write_excel" compatibility="5.3.005" expanded="true" height="76" name="Write Excel" width="90" x="581" y="210">
        <parameter key="excel_file" value="C:\Temp\RdEU.xlsx"/>
        <parameter key="file_format" value="xlsx"/>
      </operator>
      <connect from_op="Read Excel" from_port="output" to_op="Get Pages" to_port="Example Set"/>
      <connect from_op="Get Pages" from_port="Example Set" to_op="Data to Documents" to_port="example set"/>
      <connect from_op="Data to Documents" from_port="documents" to_op="Process Documents" to_port="documents 1"/>
      <connect from_op="Process Documents" from_port="example set" to_op="Select Attributes" to_port="example set input"/>
      <connect from_op="Select Attributes" from_port="example set output" to_op="Write Excel" to_port="input"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
    </process>
  </operator>
</process>

All links are in an Excel-file, but you could test it also with one link ( http://ec.europa.eu/sanco_pesticides/public/index.cfm?event=substance.info&;id=38 ).

While searching for a solution of this error message, I found this site: http://mojo.10943.n7.nabble.com/Animal-sniffer-won-t-run-on-jdk-6-td38697.html

Best wishes
Currant

MariusHelf

Looking at your process, it seems that you upgraded RapidMiner in the meanwhile to 5.3.5. Maybe it's that what made your process run again. Please let us know, if the error returns.

Best regards,
Marius

Jester87

I received this error when I tried to use Get Page.

Here is the Bug Info:

RapidMiner: 5.3.005
Parallel Processing: 5.3.000
Text Processing: 5.3.000
Weka: 5.3.001
Web Mining: 5.3.000
Series: 5.3.000

Stack trace:
------------

Exception:	java.lang.NoSuchMethodError
Message:	java.nio.CharBuffer.subSequence(II)Ljava/nio/CharBuffer;
Stack trace:
  com.rapidminer.operator.io.web.GetWebpageOperator.read(GetWebpageOperator.java:207)
  com.rapidminer.operator.io.web.GetWebpageOperator.read(GetWebpageOperator.java:61)
  com.rapidminer.operator.io.AbstractReader.doWork(AbstractReader.java:126)
  com.rapidminer.operator.Operator.execute(Operator.java:855)
  com.rapidminer.operator.execution.SimpleUnitExecutor.execute(SimpleUnitExecutor.java:51)
  com.rapidminer.operator.ExecutionUnit.execute(ExecutionUnit.java:711)
  com.rapidminer.operator.OperatorChain.doWork(OperatorChain.java:379)
  com.rapidminer.operator.Operator.execute(Operator.java:855)
  com.rapidminer.Process.run(Process.java:949)
  com.rapidminer.Process.run(Process.java:873)
  com.rapidminer.Process.run(Process.java:832)
  com.rapidminer.Process.run(Process.java:827)
  com.rapidminer.Process.run(Process.java:817)
  com.rapidminer.gui.ProcessThread.run(ProcessThread.java:63)

Process:

 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.005">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.3.005" expanded="true" name="Process">
    <parameter key="logverbosity" value="init"/>
    <parameter key="random_seed" value="2001"/>
    <parameter key="send_mail" value="never"/>
    <parameter key="notification_email" value=""/>
    <parameter key="process_duration_for_mail" value="30"/>
    <parameter key="encoding" value="SYSTEM"/>
    <parameter key="parallelize_main_process" value="false"/>
    <process expanded="true">
      <operator activated="true" class="web:get_webpage" compatibility="5.3.000" expanded="true" height="60" name="Get Page" width="90" x="179" y="75">
        <parameter key="url" value="http://www.google.com"/>
        <parameter key="random_user_agent" value="true"/>
        <parameter key="connection_timeout" value="10000"/>
        <parameter key="read_timeout" value="10000"/>
        <parameter key="follow_redirects" value="true"/>
        <parameter key="accept_cookies" value="none"/>
        <parameter key="cookie_scope" value="global"/>
        <parameter key="request_method" value="GET"/>
        <list key="query_parameters"/>
        <list key="request_properties"/>
        <parameter key="override_encoding" value="false"/>
        <parameter key="encoding" value="SYSTEM"/>
      </operator>
      <connect from_op="Get Page" from_port="output" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>

Nils_Woehler

Hi,

this bug occurs because you are using Java 6. Please install Java 7. Afterwards everything works fine again.

Best,
Nils

Jester87

Nils wrote:

Hi,

this bug occurs because you are using Java 6. Please install Java 7. Afterwards everything works fine again.

Best,
Nils

Yeah I just figured this out. I think Apple has stopped supporting Java for Snow Leopard, so I guess this means I have to find a workaround. >:(

Nils_Woehler

Yes Apple does not provide a new Java version anymore. But you can use Orcales Java 7 now: http://java.com/en/download/manual.jsp

Best,
Nils

Jester87

Nils wrote:

Yes Apple does not provide a new Java version anymore. But you can use Orcales Java 7 now: http://java.com/en/download/manual.jsp

Best,
Nils

Java 7 requires 10.7.3 +

This means snow leopard users are out of luck.

Nils_Woehler

Oh, I didn't know that. I thought Java 7 would be available for all recent OS X versions.
In that case only OS X users with a version above 10.7.3 are able to use the Web Mining extension...

Best,
Nils

punitha_c87

Hi All,

I am also getting the same error while using get page and get pages for Window 7 OS after installing Java 7 also.
Please can i know the solution for this

Marco_Boeck

Hi,

it is a bit strange you're getting this error with Windows 7, because we supply a Java 7 JRE with RapidMiner. Are you using RapidMiner 5.3? Or are you using 5.2.8 but updated your Web Mining Extension to 5.3?

Regards,
Marco