java.lang.NullPointerException
        at com.image.RemImag.idxDoc(RemImag.java:81)
        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 InlineJavaUserClassLink.invoke(InlineJavaUserClassLink.java:11)
        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 org.perl.inline.java.InlineJavaUserClassLoader.invoke_via_link(InlineJavaUserClassLoader.java:86)
        at org.perl.inline.java.InlineJavaUserClassLoader.invoke(InlineJavaUserClassLoader.java:131)
        at org.perl.inline.java.InlineJavaProtocol.CallJavaMethod(InlineJavaProtocol.java:283)
        at org.perl.inline.java.InlineJavaProtocol.Do(InlineJavaProtocol.java:41)
        at org.perl.inline.java.InlineJavaServer.ProcessCommand(InlineJavaServer.java:153)
        at org.perl.inline.java.InlineJavaServer.ProcessCommand(InlineJavaServer.java:142)
        at org.perl.inline.java.InlineJavaServerThread.run(InlineJavaServerThread.java:51)