Fixed IDEA-175161 Javadoc formatter joins lines incorrectly

Never merge a leading asterisk to the previous line.

java/java-impl/src/com/intellij/psi/formatter/java/JavaSpacePropertyProcessor.java

@@ -1193,6 +1193,9 @@ public class JavaSpacePropertyProcessor extends JavaElementVisitor {
     else if (myRole1 == ChildRole.OPERATION_SIGN) {
       createSpaceInCode(mySettings.SPACE_AROUND_UNARY_OPERATOR);
     }
+    else if (myType2 == JavaDocTokenType.DOC_COMMENT_LEADING_ASTERISKS) {
+      createSpaceProperty(false, true, 0);
+    }
     else if ((myType1 == JavaDocTokenType.DOC_TAG_VALUE_TOKEN || myType1 == JavaDocElementType.DOC_TAG_VALUE_ELEMENT) &&
              (myType2 == JavaDocTokenType.DOC_TAG_VALUE_TOKEN || myType2 == JavaDocElementType.DOC_TAG_VALUE_ELEMENT)) {
       createSpaceInCode(true);

java/java-tests/testSrc/com/intellij/java/psi/formatter/java/JavadocFormatterTest.kt

@@ -1185,14 +1185,13 @@ interface Test {
   }
 
 
-  fun _testIdea175161() {
+  fun testIdea175161() {
     getSettings().RIGHT_MARGIN = 160;
     getSettings().WRAP_COMMENTS = true;
     getSettings().KEEP_LINE_BREAKS = false;
 
     doTextTest(
-"""
-package com.company;
+"""package com.company;
 
 public class Test {
 
@@ -1206,14 +1205,13 @@ public class Test {
 }
 """,
 
-"""
-package com.company;
+"""package com.company;
 
 public class Test {
 
     /**
-     * Shortcut method for EntryDto items. This method will fetch the id from {@code item} and pass it to {@link #test2(Object, Object, Object, Object, Object)}.
-     * Make sure the dto item returns a non-null id.
+     * Shortcut method for EntryDto items. This method will fetch the id from {@code item} and pass it to {@link #test2(Object, Object, Object, Object,
+     * Object)}. Make sure the dto item returns a non-null id.
      */
     public void test() {
     }