ImageIO.write Permission denied issue Ubuntu Java -

i using struts2,java webapplication, ubuntu server

i trying upload image in application,it works perfect in local machine (ubuntu), using same code trying upload image in ubuntu server machine . throws error,i have image resize code in application imageio.write used.the following code used

thumbnail=scalr.resize(image,scalr.method.speed,scalr.mode.fit_to_width,480,10,scalr.op_antialias); imageio.write(thumbnail, ext, resizefile);  fileutils.copyfile(resizefile, desfile); 

while reaching imageio.write point following exception thrown

java.io.filenotfoundexception: 1342e10.jpg (permission denied)         @ java.io.randomaccessfile.open(native method)         @ java.io.randomaccessfile.<init>(randomaccessfile.java:236)         @ javax.imageio.stream.fileimageoutputstream.<init>(fileimageoutputstream.java:69)         @ com.sun.imageio.spi.fileimageoutputstreamspi.createoutputstreaminstance(fileimageoutputstreamspi.java:55)         @ javax.imageio.imageio.createimageoutputstream(imageio.java:409)         @ javax.imageio.imageio.write(imageio.java:1520)         @ com.platinum.uac.biz.fileupload.fileupload(fileupload.java:124)         @ com.platinum.uac.biz.fileuploadbyajaxaction.ajaxfileuploadaction(fileuploadbyajaxaction.java:98)         @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)         @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)         @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)         @ java.lang.reflect.method.invoke(method.java:622)         @ com.opensymphony.xwork2.defaultactioninvocation.invokeaction(defaultactioninvocation.java:441)         @ com.opensymphony.xwork2.defaultactioninvocation.invokeactiononly(defaultactioninvocation.java:280)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:243)         @ com.opensymphony.xwork2.interceptor.conversionerrorinterceptor.intercept(conversionerrorinterceptor.java:122)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ com.opensymphony.xwork2.interceptor.parametersinterceptor.dointercept(parametersinterceptor.java:195)         @ com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:87)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ com.opensymphony.xwork2.interceptor.parametersinterceptor.dointercept(parametersinterceptor.java:195)         @ com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:87)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ org.apache.struts2.interceptor.multiselectinterceptor.intercept(multiselectinterceptor.java:75)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ org.apache.struts2.interceptor.checkboxinterceptor.intercept(checkboxinterceptor.java:94)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ com.opensymphony.xwork2.interceptor.prepareinterceptor.dointercept(prepareinterceptor.java:138)         @ com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:87)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ org.apache.struts2.interceptor.servletconfiginterceptor.intercept(servletconfiginterceptor.java:164)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ com.opensymphony.xwork2.interceptor.exceptionmappinginterceptor.intercept(exceptionmappinginterceptor.java:176)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ org.apache.struts2.interceptor.fileuploadinterceptor.intercept(fileuploadinterceptor.java:306)         @ com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:237)         @ org.apache.struts2.impl.strutsactionproxy.execute(strutsactionproxy.java:52)         @ org.apache.struts2.dispatcher.dispatcher.serviceaction(dispatcher.java:488)         @ org.apache.struts2.dispatcher.ng.executeoperations.executeaction(executeoperations.java:77)  @ org.apache.struts2.dispatcher.ng.filter.strutsprepareandexecutefilter.dofilter(strutsprepareandexecutefilter.java:91)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:235)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:233)         @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:191)         @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:127)         @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:102)         @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:109)         @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:293)         @ org.apache.coyote.http11.http11processor.process(http11processor.java:859)         @ org.apache.coyote.http11.http11protocol$http11connectionhandler.process(http11protocol.java:602)         @ org.apache.tomcat.util.net.jioendpoint$worker.run(jioendpoint.java:489)         @ java.lang.thread.run(thread.java:701) exception apple  java.lang.nullpointerexception 

whether file created when execute imageio.write.if yes location? user @ time?

i guessing write permission may restricted. how can solve this?

imageio.write write file, yes. depends on file name give it: if it's absolute file name, should obvious. if it's not, depends on current directory, depends on start program.