6326754: Compiler will fail to handle -Xmaxerrs with -ve numbers

Reviewed-by: ksrini

langtools/src/share/classes/com/sun/tools/javac/util/Log.java

@@ -145,7 +145,10 @@ public class Log extends AbstractLog {
         private int getIntOption(Options options, String optionName, int defaultValue) {
             String s = options.get(optionName);
             try {
-                if (s != null) return Integer.parseInt(s);
+                if (s != null) {
+                    int n = Integer.parseInt(s);
+                    return (n <= 0 ? Integer.MAX_VALUE : n);
+                }
             } catch (NumberFormatException e) {
                 // silently ignore ill-formed numbers
             }

langtools/test/tools/javac/T6326754.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2010 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6326754
+ * @summary Compiler will fail to handle -Xmaxerrs with -ve numbers
+ *
+ * @compile/fail/ref=T6326754.out -XDrawDiagnostics -Xmaxerrs -1 T6326754.java
+ * @compile/fail/ref=T6326754.out -XDrawDiagnostics -Xmaxerrs  0 T6326754.java
+ * @compile/fail/ref=T6326754.out -XDrawDiagnostics -Xmaxerrs 10 T6326754.java
+ * @compile/fail/ref=T6326754.out -XDrawDiagnostics              T6326754.java
+ */
+class TestConstructor<T,K>{
+    T t;
+    K k;
+    public TestConstructor(T t,K k){
+        this.t =t;
+    }
+    public TestConstructor(K k){
+        this.k = k;
+        this.t = null;
+    }
+    public TestConstructor(T t){
+        this.t=t;
+        this.k=null;
+    }
+    public void setT(T t){
+        this.t=t;
+        this.k=null;
+    }
+    public void setT(K k){
+        this.k = k;
+        this.t = null;
+    }
+    public void setT(T t,K k){
+        this.t = t;
+        this.k = k;
+    }
+}
+class TestC<T>{
+    T t;
+    public <T>void setT(T t){
+        this.t = t;
+    }
+}
+public class T6326754{
+    public static void main(String... arg){
+        TestC tC =new TestC();
+        tC.setT();
+        TestConstructor tc = new TestConstructor("saaa");
+        tc.setT("sasa");
+        TestC<Integer> tC1 = new TestC();
+        tC1.setT(545);
+    }
+}

langtools/test/tools/javac/T6326754.out

@@ -0,0 +1,7 @@
+T6326754.java:44:12: compiler.err.name.clash.same.erasure: TestConstructor(T), TestConstructor(K)
+T6326754.java:52:17: compiler.err.name.clash.same.erasure: setT(K), setT(T)
+T6326754.java:64:18: compiler.err.prob.found.req: (compiler.misc.incompatible.types), T, T
+T6326754.java:70:11: compiler.err.cant.apply.symbol: kindname.method, setT, java.lang.Object, compiler.misc.no.args, kindname.class, TestC<T>, null
+- compiler.note.unchecked.filename: T6326754.java
+- compiler.note.unchecked.recompile
+4 errors