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test/tools/javac/T6227617.java@959103a6100f (annotated)

test/tools/javac/T6227617.java

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* @test /nodynamiccopyright/
aoqi@0	3	* @bug 6227617
aoqi@0	4	* @summary Lint option for redundant casts
aoqi@0	5	* @compile -Werror T6227617.java
aoqi@0	6	* @compile/ref=T6227617.out -XDrawDiagnostics -Xlint:cast T6227617.java
aoqi@0	7	*/
aoqi@0	8	import java.util.HashMap;
aoqi@0	9	import java.util.Map;
aoqi@0	10
aoqi@0	11	class T6227617 {
aoqi@0	12	void m() {
aoqi@0	13	int i1 = 2;
aoqi@0	14	int i2 = (int) i1; // warn
aoqi@0	15
aoqi@0	16	float f1 = 1f;
aoqi@0	17	int i3 = (int) f1;
aoqi@0	18
aoqi@0	19	String s = (String) ""; // warn
aoqi@0	20	Object o = (Object) "";
aoqi@0	21
aoqi@0	22	Map<String, Integer> m = new HashMap<String, Integer>();
aoqi@0	23	Integer I1 = (Integer) m.get(""); // warn
aoqi@0	24	}
aoqi@0	25
aoqi@0	26	// The following cause NPE in Attr with an Attr-based solution for -Xlint:cast
aoqi@0	27	static final int i1 = Foo.i1;
aoqi@0	28	static final String s = Foo.s;
aoqi@0	29	}
aoqi@0	30
aoqi@0	31	class Foo
aoqi@0	32	{
aoqi@0	33	static final int i1 = (int) 1;
aoqi@0	34	static final int i2 = (int) 1L;
aoqi@0	35
aoqi@0	36	static final String s = (String) "abc";
aoqi@0	37	}