Conversion on copy paste:

Copy elements that are partially selected as text

idea/src/org/jetbrains/jet/plugin/conversion/copy/JavaCopyPastePostProcessor.kt

@@ -101,12 +101,17 @@ public class JavaCopyPastePostProcessor() : CopyPastePostProcessor<TextBlockTran
                                      converter: Converter): String {
         val result = StringBuilder()
         var currentRange = range
+        val fileText = file.getText()!!
         while (!currentRange.isEmpty()) {
             val leafElement = findFirstLeafElementWhollyInRange(file, currentRange)
             if (leafElement == null) {
-                break;
+                val unconvertedSuffix = fileText.substring(currentRange.getStartOffset(), currentRange.getEndOffset())
+                result.append(unconvertedSuffix)
+                break
             }
             val elementToConvert = findTopMostParentWhollyInRange(currentRange, leafElement)
+            val unconvertedPrefix = fileText.substring(currentRange.getStartOffset(), elementToConvert.getTextRange()!!.getStartOffset())
+            result.append(unconvertedPrefix)
             val converted = converter.elementToKotlin(elementToConvert)
             if (converted.isNotEmpty()) {
                 result.append(converted)

idea/testData/copyPaste/conversion/HalfTheWhiteSpace.expected.kt

@@ -0,0 +1,11 @@
+class A {
+
+
+    fun foo() {}
+
+    fun bar() {}
+
+
+
+    fun f() {}
+}

idea/testData/copyPaste/conversion/HalfTheWhiteSpace.java

@@ -0,0 +1,10 @@
+class A {
+
+    <selection>
+    void foo() {}
+
+    void bar() {}
+
+    </selection>
+    void foobar() {}
+}

idea/testData/copyPaste/conversion/HalfTheWhiteSpace.to.kt

@@ -0,0 +1,6 @@
+class A {
+
+    <caret>
+
+    fun f() {}
+}

idea/testData/copyPaste/conversion/SingleWordFromIdentifier.expected.kt

@@ -1 +1 @@
-class 
+class Some

idea/tests/org/jetbrains/jet/plugin/conversion/copy/JavaToKotlinCopyPasteConversionTestGenerated.java

@@ -46,6 +46,11 @@ public class JavaToKotlinCopyPasteConversionTestGenerated extends AbstractJavaTo
         doTest("idea/testData/copyPaste/conversion/Constructor.java");
     }
     
+    @TestMetadata("HalfTheWhiteSpace.java")
+    public void testHalfTheWhiteSpace() throws Exception {
+        doTest("idea/testData/copyPaste/conversion/HalfTheWhiteSpace.java");
+    }
+    
     @TestMetadata("Imports1.java")
     public void testImports1() throws Exception {
         doTest("idea/testData/copyPaste/conversion/Imports1.java");