KT-2730 AssertionError at org.jetbrains.jet.codegen.AnnotationCodegen.genAnnotations(AnnotationCodegen.java:86)

#KT-2730 Fixed

compiler/backend/src/org/jetbrains/jet/codegen/AnnotationCodegen.java

@@ -83,10 +83,10 @@ public abstract class AnnotationCodegen {
         for (JetAnnotationEntry annotationEntry : annotationEntries) {
             ResolvedCall<? extends CallableDescriptor> resolvedCall =
                     bindingContext.get(BindingContext.RESOLVED_CALL, annotationEntry.getCalleeExpression());
-            assert resolvedCall != null;
+            if (resolvedCall == null) continue; // Skipping annotations if they are not resolved. Needed for JetLightClass generation
 
             AnnotationDescriptor annotationDescriptor = bindingContext.get(BindingContext.ANNOTATION, annotationEntry);
-            assert annotationDescriptor != null;
+            if (annotationDescriptor == null) continue; // Skipping annotations if they are not resolved. Needed for JetLightClass generation
 
             JetType type = annotationDescriptor.getType();
             genAnnotation(resolvedCall, type);

idea/testData/findUsages/unresolvedAnnotation/Client.java

@@ -0,0 +1 @@
+public class Client extends Foo {}

idea/testData/findUsages/unresolvedAnnotation/Server.kt

@@ -0,0 +1,3 @@
+open class <caret>Foo {
+    vv open val foo = 1
+}

idea/tests/org/jetbrains/jet/findUsages/JetFindUsagesTest.java

@@ -16,6 +16,7 @@
 
 package org.jetbrains.jet.findUsages;
 
+import com.intellij.psi.PsiClass;
 import com.intellij.psi.PsiField;
 import com.intellij.psi.PsiStatement;
 import com.intellij.psi.util.PsiTreeUtil;
@@ -56,6 +57,16 @@ public class JetFindUsagesTest extends LightCodeInsightFixtureTestCase {
         assertEquals("private Server myServer;", field.getText());
     }
 
+    public void testFindUsagesUnresolvedAnnotation() {
+        myFixture.configureByFiles("unresolvedAnnotation/Server.kt", "unresolvedAnnotation/Client.java");
+        JetClass cls = PsiTreeUtil.getParentOfType(myFixture.getElementAtCaret(), JetClass.class, false);
+        final Collection<UsageInfo> usages = myFixture.findUsages(cls);
+        assertEquals(1, usages.size());
+        UsageInfo first = usages.iterator().next();
+        final PsiClass psiCLass = PsiTreeUtil.getParentOfType(first.getElement(), PsiClass.class);
+        assertEquals("public class Client extends Foo {}", psiCLass.getText());
+    }
+
     public void testFindMethodUsages() {
         myFixture.configureByFiles("findMethodUsages/Server.kt", "findMethodUsages/Client.java");
         JetFunction function = PsiTreeUtil.getParentOfType(myFixture.getElementAtCaret(), JetFunction.class, false);