I am sending a string from .net service to java class but in java , I am getting org.xml.sax.SAXParseException: Character reference "�" is an invalid XML character.
Please help me in solving this. Thanks in advance.
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What encoding does the document use, and does it declare it? What is the content of the string? Are you deliberately trying to include U+0000?Jon Skeet– Jon Skeet2013-07-29 14:54:05 +00:00Commented Jul 29, 2013 at 14:54
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2 Answers
In C or C++ strings are terminated by the null (or '\0'). In C# a string can contain a null, but often these come from a C/C++ function.
You can get rid of the null in the .net String with
s = s.Replace("\0", ""); // just removes the null
or
int pos = s.IndexOf('\0');
if (pos >= 0)
s = s.Substring(0, pos); // removes the null and the rest of the string
depending on what is the reason for the null in the string.
6 Comments
sulthana
Hi Roland, Thanks for your reply. I have removed null character from the string but output is not stable. I am getting illegal argument exception some times and sometimes I am getting correct output. Please help me in solving this.
Roland Bär
@sulthana Can you give some more information in which circumstances the exception occures and when does it work? And where the exception occures (java or .net part, which line/command )...
sulthana
hi Roland, The exception is coming in java.While returning the string in JAVA class the exception is coming. Here is the exception **SEVERE: Servlet.service() for servlet AppService threw exception java.lang.IllegalArgumentException: The char '0x0' after 'return ' is not a valid XML character.
Roland Bär
looks like there is still a '\0' in one of the arguments. can you asure that there are no more '\0' in all of the arguments?
Roland Bär
@sulthana is this question related to the other questions link from you? Then you should first solve the connection/proxy problem, as this has nothing to do with passing back a string from .net.
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Some invalid characters will cause Exception while parsing XML, official defined those three scopes of invalid characters:
0x00 - 0x08
0x0b - 0x0c
0x0e - 0x1f
So you may filter them before parsing XML content.
