Fix issue when the swagger model contains an 'Object' class (#4695)

If the swagger model contains a class named 'Object' some mustache templates
will generate non compiling **Java** code.

Author: Clem

modules/swagger-codegen/src/main/resources/JavaInflector/pojo.mustache

@@ -47,7 +47,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
   {{/vars}}
 
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(java.lang.Object o) {
     if (this == o) {
       return true;
     }
@@ -79,7 +79,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
    * Convert the given object to string with each line indented by 4 spaces
    * (except the first line).
    */
-  private String toIndentedString(Object o) {
+  private String toIndentedString(java.lang.Object o) {
     if (o == null) {
       return "null";
     }

modules/swagger-codegen/src/main/resources/JavaJaxRS/cxf-cdi/pojo.mustache

@@ -37,7 +37,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
   {{/vars}}
 
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(java.lang.Object o) {
     if (this == o) {
       return true;
     }
@@ -69,7 +69,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
    * Convert the given object to string with each line indented by 4 spaces
    * (except the first line).
    */
-  private String toIndentedString(Object o) {
+  private String toIndentedString(java.lang.Object o) {
     if (o == null) {
       return "null";
     }

modules/swagger-codegen/src/main/resources/JavaJaxRS/cxf/pojo.mustache

@@ -94,7 +94,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {
    * Convert the given object to string with each line indented by 4 spaces
    * (except the first line).
    */
-  private static String toIndentedString(Object o) {
+  private static String toIndentedString(java.lang.Object o) {
     if (o == null) {
       return "null";
     }

modules/swagger-codegen/src/main/resources/JavaJaxRS/resteasy/pojo.mustache

@@ -29,7 +29,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
   {{/vars}}
 
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(java.lang.Object o) {
     if (this == o) {
       return true;
     }
@@ -61,7 +61,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
    * Convert the given object to string with each line indented by 4 spaces
    * (except the first line).
    */
-  private String toIndentedString(Object o) {
+  private String toIndentedString(java.lang.Object o) {
     if (o == null) {
       return "null";
     }

modules/swagger-codegen/src/main/resources/JavaJaxRS/spec/pojo.mustache

@@ -33,7 +33,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
   {{/vars}}
 
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(java.lang.Object o) {
     if (this == o) {
       return true;
     }
@@ -65,7 +65,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
    * Convert the given object to string with each line indented by 4 spaces
    * (except the first line).
    */
-  private String toIndentedString(Object o) {
+  private String toIndentedString(java.lang.Object o) {
     if (o == null) {
       return "null";
     }

modules/swagger-codegen/src/main/resources/undertow/pojo.mustache

@@ -32,7 +32,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
   {{/vars}}
 
   @Override
-  public boolean equals(Object o) {
+  public boolean equals(java.lang.Object o) {
     if (this == o) {
       return true;
     }
@@ -64,7 +64,7 @@ public class {{classname}} {{#parent}}extends {{{parent}}}{{/parent}} {{#seriali
    * Convert the given object to string with each line indented by 4 spaces
    * (except the first line).
    */
-  private String toIndentedString(Object o) {
+  private String toIndentedString(java.lang.Object o) {
     if (o == null) {
       return "null";
     }