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src/java.base/share/classes/java/lang/ClassLoader.java

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rev 52979 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: TBD


1102                 return defineClass(name, tb, 0, len, protectionDomain);
1103             }
1104         }
1105 
1106         protectionDomain = preDefineClass(name, protectionDomain);
1107         String source = defineClassSourceLocation(protectionDomain);
1108         Class<?> c = defineClass2(this, name, b, b.position(), len, protectionDomain, source);
1109         postDefineClass(c, protectionDomain);
1110         return c;
1111     }
1112 
1113     static native Class<?> defineClass1(ClassLoader loader, String name, byte[] b, int off, int len,
1114                                         ProtectionDomain pd, String source);
1115 
1116     static native Class<?> defineClass2(ClassLoader loader, String name, java.nio.ByteBuffer b,
1117                                         int off, int len, ProtectionDomain pd,
1118                                         String source);
1119 
1120     // true if the name is null or has the potential to be a valid binary name
1121     private boolean checkName(String name) {
1122         if ((name == null) || (name.length() == 0))
1123             return true;
1124         if ((name.indexOf('/') != -1) || (name.charAt(0) == '['))
1125             return false;
1126         return true;
1127     }
1128 
1129     private void checkCerts(String name, CodeSource cs) {
1130         int i = name.lastIndexOf('.');
1131         String pname = (i == -1) ? "" : name.substring(0, i);
1132 
1133         Certificate[] certs = null;
1134         if (cs != null) {
1135             certs = cs.getCertificates();
1136         }
1137         Certificate[] pcerts = null;
1138         if (parallelLockMap == null) {
1139             synchronized (this) {
1140                 pcerts = package2certs.get(pname);
1141                 if (pcerts == null) {
1142                     package2certs.put(pname, (certs == null? nocerts:certs));




1102                 return defineClass(name, tb, 0, len, protectionDomain);
1103             }
1104         }
1105 
1106         protectionDomain = preDefineClass(name, protectionDomain);
1107         String source = defineClassSourceLocation(protectionDomain);
1108         Class<?> c = defineClass2(this, name, b, b.position(), len, protectionDomain, source);
1109         postDefineClass(c, protectionDomain);
1110         return c;
1111     }
1112 
1113     static native Class<?> defineClass1(ClassLoader loader, String name, byte[] b, int off, int len,
1114                                         ProtectionDomain pd, String source);
1115 
1116     static native Class<?> defineClass2(ClassLoader loader, String name, java.nio.ByteBuffer b,
1117                                         int off, int len, ProtectionDomain pd,
1118                                         String source);
1119 
1120     // true if the name is null or has the potential to be a valid binary name
1121     private boolean checkName(String name) {
1122         if ((name == null) || (name.isEmpty()))
1123             return true;
1124         if ((name.indexOf('/') != -1) || (name.charAt(0) == '['))
1125             return false;
1126         return true;
1127     }
1128 
1129     private void checkCerts(String name, CodeSource cs) {
1130         int i = name.lastIndexOf('.');
1131         String pname = (i == -1) ? "" : name.substring(0, i);
1132 
1133         Certificate[] certs = null;
1134         if (cs != null) {
1135             certs = cs.getCertificates();
1136         }
1137         Certificate[] pcerts = null;
1138         if (parallelLockMap == null) {
1139             synchronized (this) {
1140                 pcerts = package2certs.get(pname);
1141                 if (pcerts == null) {
1142                     package2certs.put(pname, (certs == null? nocerts:certs));


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