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Posted to commits@commons.apache.org by gg...@apache.org on 2023/07/11 21:21:17 UTC
[commons-lang] branch master updated: [LANG-1697] TypeUtils.getRawType() throws a NullPointerException on Wildcard GenericArrayType
This is an automated email from the ASF dual-hosted git repository.
ggregory pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-lang.git
The following commit(s) were added to refs/heads/master by this push:
new 69c4dddbd [LANG-1697] TypeUtils.getRawType() throws a NullPointerException on Wildcard GenericArrayType
69c4dddbd is described below
commit 69c4dddbdecc3bf0bfb565e60d6a9a0f7f0eaea0
Author: Gary Gregory <ga...@gmail.com>
AuthorDate: Tue Jul 11 17:21:11 2023 -0400
[LANG-1697] TypeUtils.getRawType() throws a NullPointerException on
Wildcard GenericArrayType
---
src/changes/changes.xml | 1 +
.../apache/commons/lang3/reflect/TypeUtils.java | 2 +-
.../commons/lang3/reflect/TypeUtilsTest.java | 38 +++++++++++++---------
3 files changed, 24 insertions(+), 17 deletions(-)
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index b9930b0d2..26d7be48c 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -122,6 +122,7 @@ The <action> type attribute can be add,update,fix,remove.
<action type="fix" dev="ggregory" due-to="step-security-bot, Gary Gregory">[StepSecurity] ci: Harden GitHub Actions #1067.</action>
<action type="fix" dev="ggregory" due-to="Dimitrios Efthymiou">Update Javadoc for the insert methods in ArrayUtils #1078.</action>
<action type="fix" dev="ggregory" due-to="Gary Gregory">Deprecate ExceptionUtils.ExceptionUtils().</action>
+ <action issue="LANG-1697" type="fix" dev="ggregory" due-to="Jan Arne Sparka, Gary Gregory">TypeUtils.getRawType() throws a NullPointerException on Wildcard GenericArrayType.</action>
<!-- ADD -->
<action type="add" dev="ggregory" due-to="Gary Gregory">Add GitHub coverage.yml.</action>
<action type="add" dev="ggregory" due-to="Gary Gregory">Add EnumUtils.getEnumSystemProperty(...).</action>
diff --git a/src/main/java/org/apache/commons/lang3/reflect/TypeUtils.java b/src/main/java/org/apache/commons/lang3/reflect/TypeUtils.java
index 09e65b749..f959d7a99 100644
--- a/src/main/java/org/apache/commons/lang3/reflect/TypeUtils.java
+++ b/src/main/java/org/apache/commons/lang3/reflect/TypeUtils.java
@@ -802,7 +802,7 @@ public class TypeUtils {
.getGenericComponentType(), assigningType);
// create array type from raw component type and return its class
- return Array.newInstance(rawComponentType, 0).getClass();
+ return rawComponentType != null ? Array.newInstance(rawComponentType, 0).getClass() : null;
}
// (hand-waving) this is not the method you're looking for
diff --git a/src/test/java/org/apache/commons/lang3/reflect/TypeUtilsTest.java b/src/test/java/org/apache/commons/lang3/reflect/TypeUtilsTest.java
index 67de3b19e..f5407d722 100644
--- a/src/test/java/org/apache/commons/lang3/reflect/TypeUtilsTest.java
+++ b/src/test/java/org/apache/commons/lang3/reflect/TypeUtilsTest.java
@@ -346,27 +346,33 @@ public class TypeUtilsTest<B> extends AbstractLangTest {
@Test
public void testGetRawType() throws SecurityException, NoSuchFieldException {
- final Type stringParentFieldType = GenericTypeHolder.class.getDeclaredField("stringParent")
- .getGenericType();
- final Type integerParentFieldType = GenericTypeHolder.class.getDeclaredField("integerParent")
- .getGenericType();
+ final Type stringParentFieldType = GenericTypeHolder.class.getDeclaredField("stringParent").getGenericType();
+ final Type integerParentFieldType = GenericTypeHolder.class.getDeclaredField("integerParent").getGenericType();
final Type foosFieldType = GenericTypeHolder.class.getDeclaredField("foos").getGenericType();
final Type genericParentT = GenericParent.class.getTypeParameters()[0];
assertEquals(GenericParent.class, TypeUtils.getRawType(stringParentFieldType, null));
- assertEquals(GenericParent.class, TypeUtils.getRawType(integerParentFieldType,
- null));
+ assertEquals(GenericParent.class, TypeUtils.getRawType(integerParentFieldType, null));
assertEquals(List.class, TypeUtils.getRawType(foosFieldType, null));
- assertEquals(String.class, TypeUtils.getRawType(genericParentT,
- StringParameterizedChild.class));
- assertEquals(String.class, TypeUtils.getRawType(genericParentT,
- stringParentFieldType));
- assertEquals(Foo.class, TypeUtils.getRawType(Iterable.class.getTypeParameters()[0],
- foosFieldType));
- assertEquals(Foo.class, TypeUtils.getRawType(List.class.getTypeParameters()[0],
- foosFieldType));
+ assertEquals(String.class, TypeUtils.getRawType(genericParentT, StringParameterizedChild.class));
+ assertEquals(String.class, TypeUtils.getRawType(genericParentT, stringParentFieldType));
+ assertEquals(Foo.class, TypeUtils.getRawType(Iterable.class.getTypeParameters()[0], foosFieldType));
+ assertEquals(Foo.class, TypeUtils.getRawType(List.class.getTypeParameters()[0], foosFieldType));
assertNull(TypeUtils.getRawType(genericParentT, GenericParent.class));
- assertEquals(GenericParent[].class, TypeUtils.getRawType(GenericTypeHolder.class
- .getDeclaredField("barParents").getGenericType(), null));
+ assertEquals(GenericParent[].class, TypeUtils.getRawType(GenericTypeHolder.class.getDeclaredField("barParents").getGenericType(), null));
+ }
+
+ /**
+ * Tests https://issues.apache.org/jira/browse/LANG-1697
+ */
+ @Test
+ public void testGetRawType_LANG_1697() throws NoSuchFieldException {
+ assertEquals(int[].class, TypeUtils.getRawType(TypeUtils.genericArrayType(Integer.TYPE), Integer.TYPE));
+ // LANG-1697:
+ assertNull(TypeUtils.getRawType(TypeUtils.genericArrayType(TypeUtils.WILDCARD_ALL), null));
+ // TODO: Is this correct?
+ assertNull(TypeUtils.getRawType(TypeUtils.genericArrayType(TypeUtils.WILDCARD_ALL), TypeUtils.WILDCARD_ALL));
+ // TODO: Is this correct?
+ assertNull(TypeUtils.getRawType(TypeUtils.genericArrayType(TypeUtils.WILDCARD_ALL), Integer.TYPE));
}
@Test