@deprecated with multi-line message in Javadoc converted to @Deprecated("long ugly string") #KT-19644 Fixed (#1253)

j2k/src/org/jetbrains/kotlin/j2k/AnnotationConverter.kt

@@ -77,7 +77,16 @@ class AnnotationConverter(private val converter: Converter) {
     private fun convertDeprecatedJavadocTag(element: PsiDocCommentOwner, target: AnnotationUseTarget?): Annotation? {
         val deprecatedTag = element.docComment?.findTagByName("deprecated") ?: return null
         val deferredExpression = converter.deferredElement<Expression> {
-            LiteralExpression("\"" + StringUtil.escapeStringCharacters(deprecatedTag.content()) + "\"").assignNoPrototype()
+            val text = buildString {
+                val split = deprecatedTag.content().split("\n")
+                val length = split.size
+                split.forEachIndexed { index, s ->
+                    if (index > 0) append("+\n")
+                    val content = if (index == length - 1) s else s + "\n"
+                    append("\"" + StringUtil.escapeStringCharacters(content) + "\"")
+                }
+            }
+            LiteralExpression(text).assignNoPrototype()
         }
         val identifier = Identifier("Deprecated").assignPrototype(deprecatedTag.nameElement)
         return Annotation(identifier,

j2k/testData/fileOrElement/docComments/deprecatedDocTagWithMultiLineMessage.java

@@ -0,0 +1,10 @@
+/**
+ * @deprecated Ph'nglui mglw'nafh
+ * Cthulhu R'lyeh wgah'nagl fhtagn.
+ * 'In His House at R'lyeh
+ * Dead Cthulhu waits dreaming,
+ * yet He shall rise and His kingdom
+ * shall cover the Earth.'
+ */
+public class TestDeprecatedInJavadocWithMultilineMessage {
+}

j2k/testData/fileOrElement/docComments/deprecatedDocTagWithMultiLineMessage.kt

@@ -0,0 +1,7 @@
+@Deprecated("Ph'nglui mglw'nafh\n" +
+        "  Cthulhu R'lyeh wgah'nagl fhtagn.\n" +
+        "  'In His House at R'lyeh\n" +
+        "  Dead Cthulhu waits dreaming,\n" +
+        "  yet He shall rise and His kingdom\n" +
+        "  shall cover the Earth.'")
+class TestDeprecatedInJavadocWithMultilineMessage

j2k/tests/org/jetbrains/kotlin/j2k/JavaToKotlinConverterForWebDemoTestGenerated.java

@@ -1796,6 +1796,12 @@ public class JavaToKotlinConverterForWebDemoTestGenerated extends AbstractJavaTo
             doTest(fileName);
         }
 
+        @TestMetadata("deprecatedDocTagWithMultiLineMessage.java")
+        public void testDeprecatedDocTagWithMultiLineMessage() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("j2k/testData/fileOrElement/docComments/deprecatedDocTagWithMultiLineMessage.java");
+            doTest(fileName);
+        }
+
         @TestMetadata("docCommentWithParamTag.java")
         public void testDocCommentWithParamTag() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("j2k/testData/fileOrElement/docComments/docCommentWithParamTag.java");

j2k/tests/org/jetbrains/kotlin/j2k/JavaToKotlinConverterSingleFileTestGenerated.java

@@ -1796,6 +1796,12 @@ public class JavaToKotlinConverterSingleFileTestGenerated extends AbstractJavaTo
             doTest(fileName);
         }
 
+        @TestMetadata("deprecatedDocTagWithMultiLineMessage.java")
+        public void testDeprecatedDocTagWithMultiLineMessage() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("j2k/testData/fileOrElement/docComments/deprecatedDocTagWithMultiLineMessage.java");
+            doTest(fileName);
+        }
+
         @TestMetadata("docCommentWithParamTag.java")
         public void testDocCommentWithParamTag() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("j2k/testData/fileOrElement/docComments/docCommentWithParamTag.java");