I get array index out of bounds exception
when trying to read data from a file into an array. The file has 700 lines data similar to:
"Vasculitis_PlasmaExchange", "#FCE883", "http://ncbi.nlm.nih.gov/pubmed/18646089", "(252, 232, 131)"
"Vasculitis_Prednisone", "#C5E384", "http://ncbi.nlm.nih.gov/pubmed/19588365", "(197, 227, 132)"
my code is:
static{
COLOR_CODES = new ArrayList<String[]>();
try{
FileReader fr = new FileReader("Crayon.properties");
BufferedReader br = new BufferedReader(fr);
String line;
while ( (line = br.readLine()) != null) {
COLOR_CODES.add(new String[]{line});
}
br.close();
fr.close();
}catch (Exception e){
throw new IllegalStateException("Couldn't load array file");
}
}
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException,
IOException
{
JSONArray fullColorArray;
String query = request.getParameter("q");
try {
int count = 0;
if (query.equals(m_lastQuery)) {
fullColorArray = m_lastResults;
count = m_lastResults.length();
} else {
m_lastQuery = query;
fullColorArray = new JSONArray();
for (String[] colorCode : COLOR_CODES) {
String colorName = colorCode[0];
String lowerColor = colorName.toLowerCase();
int has = lowerColor.indexOf(query.toLowerCase());
if (!query.isEmpty() && (query.equals("*") || has >= 0)) {
JSONObject color = new JSONObject();
color.put("DisplayName", colorName);
color.put("Value", colorCode[1]); // <-------- ArrayIndexOutOfBoundsException
color.put("Description", colorCode[2]);
color.put("RGB", colorCode[3]);
fullColorArray.put(color);
count++;
}
}
m_lastResults = fullColorArray;
}
NullPointerException:
HTTP ERROR: 500
INTERNAL_SERVER_ERROR
RequestURI=/multivaluesuggestboxexample/colors
Caused by:
java.lang.NullPointerException
at org.spiffyui.spiffynavigation.server.CrayonColorsServlet.doGet(CrayonColorsServlet.java:95)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
(Based on CrayonColorsServlet.java)
Please help.
AM Mohan Rao
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