fix inconsistency when adding a package statement into file with broken package

java/java-tests/testSrc/com/intellij/java/psi/JavaPsiTest.groovy

@@ -5,6 +5,7 @@ package com.intellij.java.psi
 
 import com.intellij.openapi.command.WriteCommandAction
 import com.intellij.psi.PsiJavaFile
+import com.intellij.testFramework.PsiTestUtil
 import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase
 import com.intellij.util.ThrowableRunnable
 import groovy.transform.CompileStatic
@@ -69,6 +70,13 @@ class JavaPsiTest extends LightCodeInsightFixtureTestCase {
     assert expr.text == "expr"
   }
 
+  void "test add package statement into file with broken package"() {
+    def file = configureFile("package ;")
+    runCommand { file.setPackageName('foo') }
+    PsiTestUtil.checkFileStructure(file)
+    assert myFixture.editor.document.text.startsWith('package foo;')
+  }
+
   private PsiJavaFile configureFile(String text) {
     myFixture.configureByText("a.java", text) as PsiJavaFile
   }