notnull

java/java-psi-api/src/com/intellij/psi/PsiParameterList.java

@@ -35,7 +35,7 @@ public interface PsiParameterList extends PsiElement {
    * @param parameter the parameter to search for (must belong to this parameter list).
    * @return the index of the parameter.
    */
-  int getParameterIndex(PsiParameter parameter);
+  int getParameterIndex(@NotNull PsiParameter parameter);
 
   /**
    * Returns the number of parameters (excluding type annotation receiver).

java/java-psi-impl/src/com/intellij/psi/impl/compiled/ClsParameterListImpl.java

@@ -38,7 +38,7 @@ public class ClsParameterListImpl extends ClsRepositoryPsiElement<PsiParameterLi
   }
 
   @Override
-  public int getParameterIndex(PsiParameter parameter) {
+  public int getParameterIndex(@NotNull PsiParameter parameter) {
     assert parameter.getParent() == this;
     return PsiImplUtil.getParameterIndex(parameter, this);
   }

java/java-psi-impl/src/com/intellij/psi/impl/light/LightParameterListBuilder.java

@@ -59,7 +59,7 @@ public class LightParameterListBuilder extends LightElement implements PsiParame
   }
 
   @Override
-  public int getParameterIndex(PsiParameter parameter) {
+  public int getParameterIndex(@NotNull PsiParameter parameter) {
     return myParameters.indexOf(parameter);
   }
 

java/java-psi-impl/src/com/intellij/psi/impl/light/LightParameterListWrapper.java

@@ -54,7 +54,7 @@ public class LightParameterListWrapper extends LightElement implements PsiParame
   }
 
   @Override
-  public int getParameterIndex(PsiParameter parameter) {
+  public int getParameterIndex(@NotNull PsiParameter parameter) {
     if (parameter instanceof LightParameterWrapper) {
       parameter = ((LightParameterWrapper)parameter).getPrototype();
     }

java/java-psi-impl/src/com/intellij/psi/impl/source/PsiParameterListImpl.java

@@ -46,7 +46,7 @@ public class PsiParameterListImpl extends JavaStubPsiElement<PsiParameterListStu
   }
 
   @Override
-  public int getParameterIndex(PsiParameter parameter) {
+  public int getParameterIndex(@NotNull PsiParameter parameter) {
     LOG.assertTrue(parameter.getParent() == this);
     return PsiImplUtil.getParameterIndex(parameter, this);
   }

plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/psi/impl/statements/params/GrParameterListImpl.java

@@ -18,7 +18,6 @@ package org.jetbrains.plugins.groovy.lang.psi.impl.statements.params;
 
 import com.intellij.lang.ASTNode;
 import com.intellij.openapi.diagnostic.Logger;
-import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiParameter;
 import com.intellij.psi.StubBasedPsiElement;
 import com.intellij.psi.impl.PsiImplUtil;
@@ -61,7 +60,7 @@ public class GrParameterListImpl extends GrStubElementBase<EmptyStub> implements
   }
 
   @Override
-  public int getParameterIndex(PsiParameter parameter) {
+  public int getParameterIndex(@NotNull PsiParameter parameter) {
     LOG.assertTrue(parameter.getParent() == this);
     return PsiImplUtil.getParameterIndex(parameter, this);
   }

plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/psi/impl/synthetic/GrLightParameterListBuilder.java

@@ -82,7 +82,7 @@ public class GrLightParameterListBuilder extends LightElement implements GrParam
   }
 
   @Override
-  public int getParameterIndex(PsiParameter parameter) {
+  public int getParameterIndex(@NotNull PsiParameter parameter) {
     //noinspection SuspiciousMethodCalls
     return myParameters.indexOf(parameter);
   }