throwable never thrown: exclude usages as method arguments

plugins/InspectionGadgets/src/com/siyeh/ig/bugs/ThrowableInstanceNeverThrownInspection.java

@@ -83,6 +83,7 @@ public class ThrowableInstanceNeverThrownInspection extends BaseInspection {
             } else if (parent instanceof PsiReturnStatement) {
                 return;
             }
+            if (PsiTreeUtil.getParentOfType(parent, PsiCallExpression.class) != null) return;
             final PsiElement typedParent =
                     PsiTreeUtil.getParentOfType(expression,
                             PsiAssignmentExpression.class,
@@ -129,6 +130,7 @@ public class ThrowableInstanceNeverThrownInspection extends BaseInspection {
                     } else if (usageParent instanceof PsiReturnStatement) {
                         return;
                     }
+                    if (PsiTreeUtil.getParentOfType(usageParent, PsiCallExpression.class) != null) return;
                 }
             }
             registerError(expression, expression);

plugins/InspectionGadgets/test/com/siyeh/igtest/bugs/throwable_instance_never_thrown/ThrowableInstanceNeverThrown.java

@@ -1,5 +1,8 @@
 package com.siyeh.igtest.bugs.throwable_instance_never_thrown;
 
+import java.io.IOException;
+import java.util.*;
+
 public class ThrowableInstanceNeverThrown {
 
     void foo() throws Exception {
@@ -30,4 +33,14 @@ public class ThrowableInstanceNeverThrown {
     void leftBehind() throws Throwable {
         final RuntimeException e = new RuntimeException("throw me");
     }
+
+    void exceptionIsCollected() {
+        List<IOException> exs = new ArrayList<IOException>();
+        exs.add(new IOException());
+        IOException io2 = new IOException();
+        exs.add(io2);
+        methodCall(io2);
+    }
+
+    void methodCall(IOException e){}
 }

plugins/InspectionGadgets/test/com/siyeh/igtest/bugs/throwable_instance_never_thrown/expected.xml

@@ -3,14 +3,14 @@
 
   <problem>
     <file>ThrowableInstanceNeverThrown.java</file>
-    <line>14</line>
+    <line>17</line>
     <problem_class>Throwable instance not thrown</problem_class>
     <description>Runtime exception instance &lt;code&gt;new RuntimeException()&lt;/code&gt; is not thrown</description>
   </problem>
 
   <problem>
     <file>ThrowableInstanceNeverThrown.java</file>
-    <line>31</line>
+    <line>34</line>
     <problem_class>Throwable instance not thrown</problem_class>
     <description>Runtime exception instance &lt;code&gt;new RuntimeException(&quot;throw me&quot;)&lt;/code&gt; is not thrown</description>
   </problem>