Avoid allocating empty arrays in MemberKey (#4687)

kilink · web-flow · commit 450071bc7c86 · 2024-09-04T19:55:47.000-07:00
diff --git a/src/main/java/com/fasterxml/jackson/databind/introspect/MemberKey.java b/src/main/java/com/fasterxml/jackson/databind/introspect/MemberKey.java
@@ -17,12 +17,12 @@ public final class MemberKey
 
     public MemberKey(Method m)
     {
-        this(m.getName(), m.getParameterTypes());
+        this(m.getName(), m.getParameterCount() > 0 ? m.getParameterTypes() : NO_CLASSES);
     }
 
     public MemberKey(Constructor<?> ctor)
     {
-        this("", ctor.getParameterTypes());
+        this("", ctor.getParameterCount() > 0 ? ctor.getParameterTypes() : NO_CLASSES);
     }
 
     public MemberKey(String name, Class<?>[] argTypes)

Original file line number	Diff line number	Diff line change
`@@ -17,12 +17,12 @@ public final class MemberKey`
`17`	`17`
`18`	`18`	`public MemberKey(Method m)`
`19`	`19`	`{`
`20`		`- this(m.getName(), m.getParameterTypes());`
	`20`	`+ this(m.getName(), m.getParameterCount() > 0 ? m.getParameterTypes() : NO_CLASSES);`
`21`	`21`	`}`
`22`	`22`
`23`	`23`	`public MemberKey(Constructor<?> ctor)`
`24`	`24`	`{`
`25`		`- this("", ctor.getParameterTypes());`
	`25`	`+ this("", ctor.getParameterCount() > 0 ? ctor.getParameterTypes() : NO_CLASSES);`
`26`	`26`	`}`
`27`	`27`
`28`	`28`	`public MemberKey(String name, Class<?>[] argTypes)`