38 lines
874 B
Java
38 lines
874 B
Java
/*
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* @test /nodynamiccopyright/
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* @bug 6227617
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* @summary Lint option for redundant casts
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* @compile -Werror T6227617.java
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* @compile/ref=T6227617.out -XDrawDiagnostics -Xlint:cast T6227617.java
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*/
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import java.util.HashMap;
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import java.util.Map;
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class T6227617 {
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void m() {
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int i1 = 2;
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int i2 = (int) i1; // warn
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float f1 = 1f;
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int i3 = (int) f1;
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String s = (String) ""; // warn
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Object o = (Object) "";
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Map<String, Integer> m = new HashMap<String, Integer>();
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Integer I1 = (Integer) m.get(""); // warn
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}
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// The following cause NPE in Attr with an Attr-based solution for -Xlint:cast
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static final int i1 = Foo.i1;
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static final String s = Foo.s;
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}
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class Foo
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{
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static final int i1 = (int) 1;
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static final int i2 = (int) 1L;
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static final String s = (String) "abc";
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}
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