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comparison src/share/vm/oops/instanceKlass.cpp @ 8693:872b3feace55

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8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp Summary: fix null pointer Reviewed-by: kvn, coleenp
author morris
date Tue, 05 Mar 2013 18:03:36 -0800
parents 927a311d00f9
children 35ef86296a5d
comparison
equal deleted inserted replaced
8692:4f553e24b3b5 8693:872b3feace55
2168 if (ClassUnloading) { 2168 if (ClassUnloading) {
2169 Klass* impl = implementor(); 2169 Klass* impl = implementor();
2170 if (impl != NULL) { 2170 if (impl != NULL) {
2171 if (!impl->is_loader_alive(is_alive)) { 2171 if (!impl->is_loader_alive(is_alive)) {
2172 // remove this guy 2172 // remove this guy
2173 *adr_implementor() = NULL; 2173 Klass** klass = adr_implementor();
2174 assert(klass != NULL, "null klass");
2175 if (klass != NULL) {
2176 *klass = NULL;
2177 }
2174 } 2178 }
2175 } 2179 }
2176 } 2180 }
2177 } 2181 }
2178 } 2182 }
3149 guarantee(constants()->is_constantPool(), "should be constant pool"); 3153 guarantee(constants()->is_constantPool(), "should be constant pool");
3150 } 3154 }
3151 if (protection_domain() != NULL) { 3155 if (protection_domain() != NULL) {
3152 guarantee(protection_domain()->is_oop(), "should be oop"); 3156 guarantee(protection_domain()->is_oop(), "should be oop");
3153 } 3157 }
3154 if (host_klass() != NULL) { 3158 const Klass* host = host_klass();
3155 guarantee(host_klass()->is_metadata(), "should be in metaspace"); 3159 if (host != NULL) {
3156 guarantee(host_klass()->is_klass(), "should be klass"); 3160 guarantee(host->is_metadata(), "should be in metaspace");
3161 guarantee(host->is_klass(), "should be klass");
3157 } 3162 }
3158 if (signers() != NULL) { 3163 if (signers() != NULL) {
3159 guarantee(signers()->is_objArray(), "should be obj array"); 3164 guarantee(signers()->is_objArray(), "should be obj array");
3160 } 3165 }
3161 } 3166 }