IDEA-71339 If completion of method call without parameters is finished by space two spaces are inserted

java/java-impl/src/com/intellij/codeInsight/completion/JavaCompletionUtil.java

@@ -811,7 +811,7 @@ public class JavaCompletionUtil {
     final boolean hasTail = tailType != TailType.NONE && tailType != TailType.UNKNOWN;
     final boolean smart = completionChar == Lookup.COMPLETE_STATEMENT_SELECT_CHAR;
 
-    if (completionChar == '(' || completionChar == '.' || completionChar == ',' || completionChar == ';' || completionChar == ':') {
+    if (completionChar == '(' || completionChar == '.' || completionChar == ',' || completionChar == ';' || completionChar == ':' || completionChar == ' ') {
       context.setAddCompletionChar(false);
     }
 

java/java-tests/testData/codeInsight/completion/normal/NoArgsMethodSpace.java

@@ -0,0 +1,8 @@
+class Foo {
+  int foo1() {}
+  int foo2() {}
+
+  {
+    foo<caret>
+  }
+}

java/java-tests/testData/codeInsight/completion/normal/NoArgsMethodSpace_after.java

@@ -0,0 +1,8 @@
+class Foo {
+  int foo1() {}
+  int foo2() {}
+
+  {
+    foo1() <caret>
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/completion/NormalCompletionTest.groovy

@@ -875,6 +875,7 @@ public class NormalCompletionTest extends LightFixtureCompletionTestCase {
   public void testCommaAfterVariable() throws Throwable { doTest(',') }
 
   public void testClassAngleBracket() throws Throwable { doTest('<') }
+  public void testNoArgsMethodSpace() throws Throwable { doTest(' ') }
 
   public void testClassSquareBracket() throws Throwable { doTest('[') }
   public void testPrimitiveSquareBracket() throws Throwable { doTest('[') }