java.net.URISyntaxException: Illegal character in query at index

String u ="http://chart.googleapis.com/chart?chst=d_bubble_texts_big&chld=bb|FFB573|000000|Help+Wanted|Hours";HTTP ERROR 500

Problem accessing /gae_app. Reason:

    INTERNAL_SERVER_ERROR

Caused by:

java.lang.IllegalArgumentExceptionat java.net.URI.create(URI.java:842)at com.google.appengine.repackaged.org.apache.http.client.methods.HttpGet.<init>(HttpGet.java:69)at com.google.appengine.api.urlfetch.dev.LocalURLFetchService$1.buildMethod(LocalURLFetchService.java:129)at com.google.appengine.api.urlfetch.dev.LocalURLFetchService.fetch(LocalURLFetchService.java:344)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.callInternal(ApiProxyLocalImpl.java:474)at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:436)at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:415)at java.util.concurrent.Executors$PrivilegedCallable$1.run(Executors.java:463)at java.security.AccessController.doPrivileged(Native Method)at java.util.concurrent.Executors$PrivilegedCallable.call(Executors.java:460)at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)at java.util.concurrent.FutureTask.run(FutureTask.java:138)at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)at java.lang.Thread.run(Thread.java:619)Caused by: java.net.URISyntaxException: Illegal character in query at index 65: http://chart.googleapis.com/chart?chst=d_bubble_texts_big&chld=bb|FFB573|000000|Help+Wanted|Hoursat java.net.URI$Parser.fail(URI.java:2809)at java.net.URI$Parser.checkChars(URI.java:2982)at java.net.URI$Parser.parseHierarchical(URI.java:3072)at java.net.URI$Parser.parse(URI.java:3014)at java.net.URI.<init>(URI.java:578)at java.net.URI.create(URI.java:840)... 18 more

Caused by:

java.net.URISyntaxException: Illegal character in query at index 65: http://chart.googleapis.com/chart?chst=d_bubble_texts_big&chld=bb|FFB573|000000|Help+Wanted|Hoursat java.net.URI$Parser.fail(URI.java:2809)at java.net.URI$Parser.checkChars(URI.java:2982)at java.net.URI$Parser.parseHierarchical(URI.java:3072)at java.net.URI$Parser.parse(URI.java:3014)at java.net.URI.<init>(URI.java:578)at java.net.URI.create(URI.java:840)at com.google.appengine.repackaged.org.apache.http.client.methods.HttpGet.<init>(HttpGet.java:69)at com.google.appengine.api.urlfetch.dev.LocalURLFetchService$1.buildMethod(LocalURLFetchService.java:129)at com.google.appengine.api.urlfetch.dev.LocalURLFetchService.fetch(LocalURLFetchService.java:344)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)at java.lang.reflect.Method.invoke(Method.java:597)at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.callInternal(ApiProxyLocalImpl.java:474)at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:436)at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:415)at java.util.concurrent.Executors$PrivilegedCallable$1.run(Executors.java:463)at java.security.AccessController.doPrivileged(Native Method)at java.util.concurrent.Executors$PrivilegedCallable.call(Executors.java:460)at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)at java.util.concurrent.FutureTask.run(FutureTask.java:138)at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)at java.lang.Thread.run(Thread.java:619)

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