7902686: Jasm incorrectly sets up the SourceFile attribute on Windows platform

Author: lkuskov

build/productinfo.properties

@@ -26,6 +26,6 @@
 PRODUCT_NAME        = asmtools
 PRODUCT_JAR_NAME    = asmtools.jar
 PRODUCT_VERSION     = 7.0
-PRODUCT_MILESTONE   = beta
-PRODUCT_BUILDNUMBER = b02
+PRODUCT_MILESTONE   = ea
+PRODUCT_BUILDNUMBER = b09
 PRODUCT_NAME_LONG   = Java Assembler Tools

src/org/openjdk/asmtools/jasm/Environment.java

@@ -27,6 +27,7 @@
 import org.openjdk.asmtools.util.I18NResourceBundle;
 
 import java.io.*;
+import java.nio.file.Paths;
 import java.text.MessageFormat;
 
 /**
@@ -94,9 +95,7 @@ public String getInputFileName() {
 
     public String getSimpleInputFileName() {
         if( simpleInputFileName == null ) {
-            char separatorChar = (inputFileName.matches("^[A-Za-z]+:.*")) ? '/' : File.separatorChar;
-            int index = inputFileName.lastIndexOf(separatorChar);
-            simpleInputFileName = (index < 0) ? inputFileName.substring(0) : inputFileName.substring(index + 1);
+            simpleInputFileName = Paths.get(inputFileName).getFileName().toString();
         }
         return simpleInputFileName;
     }